CFX MKII SERIESOWNER’S MANUAL12, 16, AND 20-CHANNELMIC/LINE MIXERSWITH DIGITAL EFFECTS

POWER

ON

TIP OUT TO EFFECTS DEVICERING RETURN FROM EFFECTS

STEREO PLUG

FOR USE AS AN EFFECTS LOOP(TIP = SEND, RING = RETURN)

DIRECT OUT WITH SIGNAL INTERRUPTION TO MASTER

OPTIONAL USES FOR INSERTS

INSERT ALL THE WAY IN TOTHE "SECOND CLICK"

MONO PLUG

120 VAC, 50/60 Hz,35 WATTS

12 CHANNEL COMPACT INTEGRATED LIVE SOUND MIXERCFX12 SERIAL NUMBER

RISK OF ELECTRIC SHOCKDO NOT OPEN

REPLACE WITH THE SAME TYPE FUSE AND RATING.DISCONNECT SUPPLY CORD BEFORE CHANGING FUSE

UTILISE UN FUSIBLE DE RECHANGE DE MÊME TYPE.DEBRANCHER AVANT DE REMPLACER LE FUSIBLE

WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE. DO NOT REMOVE COVER. NO USER SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL.

CAUTION

AVIS: RISQUE DE CHOC ELECTRIQUE — NE PAS OUVRIR

MANUFACTURING DATE

DESIGNED BY MACKOIDS IN WOODINVILLE, WA, USA • THE FOLLOWING ARE TRADEMARKS OR REGISTERED TRADEMARKS OF MACKIE DESIGNS INC.: "MACKIE", "EMAC", AND THE "RUNNING MAN" FIGURE • PATENT PENDING • COPYRIGHT ©2004

WIDE BYPASS100 100

REVERBSDELAYS

CHORUS/FLANGE/PHASER

DAMPING

DEPTH

TIME

RATE

NORMAL NORMALEFX

SM. ROOMMD. PLATELG. PLATE

LG. HALL

GATEDREVERSE

CATHEDRAL

MD. HALL

SPRINGPHASER

DELAY 4CHORUS

DELAY 3

DELAY 1

FLANGE

DELAY 2

1

3-4

1-2

CLIP

0dB=0dBu

LEFT RIGHT

MID400Hz

MID400Hz

U

+15OO

U

+15OO

U

+15OO

U

+15OO

1

2

600

1.5k150

8k100

12kHI

MID

FREQ

80HzLOW

EQU

+15-15U

+15-15

U

+15-15

600

1.5k150

8k100

12kHI

MID

FREQ

80HzLOW

EQU

+15-15U

+15-15

U

+15-15

600

1.5k150

8k100

12kHI

MID

FREQ

80HzLOW

EQU

+15-15U

+15-15

U

+15-15

600

1.5k150

8k100

12kHI

MID

FREQ

80HzLOW

EQU

+15-15U

+15-15

U

+15-15

600

1.5k150

8k100

12kHI

MID

FREQ

80HzLOW

EQU

+15-15U

+15-15

U

+15-15

600

1.5k150

8k100

12kHI

MID

FREQ

80HzLOW

EQU

+15-15U

+15-15

U

+15-15

600

1.5k150

8k100

12kHI

MID

FREQ

80HzLOW

EQU

+15-15U

+15-15

U

+15-15

600

1.5k150

8k100

12kHI

MID

FREQ

80HzLOW

EQU

+15-15U

+15-15

U

+15-15

MIC 1

BAL/UNBAL

LINE IN

INSERT

BAL/UNBAL

LINE IN

INSERT

BAL/UNBAL

LINE IN

INSERT

BAL/UNBAL

LINE IN

INSERT

BAL/UNBAL

LINE IN

INSERT

BAL/UNBAL

LINE IN

INSERT

BAL/UNBAL

LINE IN

INSERT

BAL/UNBAL

LINE IN

INSERT

MIC 2 MIC 3 MIC 4 MIC 5 MIC 6 MIC 7 MIC 8

ZEROLEVEL

SET

TAPE LEVEL

OOMAXPHONES LEVEL

UTILITY OUT LEVEL

1(EXT)

48v

L R

PAN

L R

PAN

L R

PAN

L R

PAN

L R

PAN

L R

PAN

L R

PAN

L R

PAN

L R

PAN

L R

PAN

RIGHT

LEFT

RIGHT

LEFT

RIGHT

LEFT

RIGHT

LEFT

3-4

1-2

3-4

1-2

3-4

1-2

3-4

1-2

3-4

1-2

3-4

1-2

3-4

1-2

3-4

1-2

3-4

1-2dB

30

20

10

OO

4050

5

5

U

60

10

SOLOPFL

dB

30

20

10

OO

4050

5

5

U

60

10

SOLOPFL

dB

30

20

10

OO

4050

5

5

U

60

10

SOLOPFL

dB

30

20

10

OO

4050

5

5

U

60

10

SOLOPFL

dB

30

20

10

OO

4050

5

5

U

60

10

SOLOPFL

dB

30

20

10

OO

4050

5

5

U

60

10

SOLOPFL

dB

30

20

10

OO

4050

5

5

U

60

10

SOLOPFL

dB

30

20

10

OO

4050

5

5

U

60

10

SOLOPFL

dB

30

20

10

OO

4050

5

5

U

60

10

SOLOPFL

dB

30

20

10

OO

4050

5

5

U

60

10

SOLOPFL

dB

30

20

10

OO

4050

5

5

U

60

10

dB

30

20

10

OO

4050

5

5

U

60

10

dB

30

20

10

OO

4050

5

5

U

60

10

dB

30

20

10

OO

4050

5

5

U

60

10

dB

30

20

10

OO

4050

5

5

U

60

10

15–

15+

5

10

0

5

10

–15

+15

5

10

0

5

10

1

EFX2

(INT)

EFX1

(EXT)

POWER STATUS

RUDESOLO

BREAK SWITCH(MUTES ALL CHANNELS)

PRE FADER

AUX U

+15OO

U

+15OO

U

+15OO

U

+15OO

1

2

EFX2

(INT)

EFX1

(EXT)

PRE FADER

AUX U

+15OO

U

+15OO

U

+15OO

U

+15OO

1

2

EFX2

(INT)

EFX1

(EXT)

PRE FADER

AUX U

+15OO

U

+15OO

U

+15OO

U

+15OO

1

2

EFX2

(INT)

EFX1

(EXT)

PRE FADER

AUX U

+15OO

U

+15OO

U

+15OO

U

+15OO

1

2

EFX2

(INT)

EFX1

(EXT)

PRE FADER

AUX U

+15OO

U

+15OO

U

+15OO

U

+15OO

1

2

EFX2

(INT)

EFX1

(EXT)

PRE FADER

AUX U

+15OO

U

+15OO

U

+15OO

U

+15OO

1

2

EFX2

(INT)

EFX1

(EXT)

PRE FADER

AUX U

+15OO

U

+15OO

U

+15OO

U

+15OO

1

2

EFX2

(INT)

EFX1

(EXT)

PRE FADER

AUX U

+15OO

U

+15OO

U

+15OO

U

+15OO

1

2

EFX2

(INT)

EFX1

(EXT)

PRE FADER

AUX U

+15OO

U

+15OO

U

+15OO

U

+15OO

1

2

EFX2

(INT)

EFX1

(EXT)

PRE FADER

AUX

2 3 4 5 6 7 8 9/10

U

+15OO

U

+15OO

U

+15OO

U

+15OO

U

+20OO

U

+20OO

U

+10OO

U

+15OO

U

+15OO

U

+15OO

1

2

11/12

AUX

EFX

MASTER SEND

U

GAIN+20-20

U

GAIN+20-20

LOW LOW

22

10

7

4

2

0

2

4

7

10

20

30

STEREO

MAIN MIX

PHONES

FOOTSWITCH

EFX

LAMP12V 0.5A

MAIN OUT

L

R

11LEFT

AUX SENDUTILITY OUT SUB OUT

TAPEINPUT

TAPEOUTPUT

L L

R

1

2

1

2

L

L R

R

L

R

EFX SENDSTEREO EFXRETURN

MAIN INSERT

(MONO) (MONO)

L

R

S

75HzSUB OUT

R

1

2

1

2

3

4

MAIN OUT

9 LEFT

RIGHT

10RIGHT

12

EFX 1 RETURNEFX 2SEND

TO MAIN MIXEFFECTS TO MONITORAUX 1 AUX 2

PHANTOM POWER

STEREO GRAPHIC EQ

1K50025063 125 16K2K 4K 8K

12kHI

HIMID3k

80HzLOW

EQU

+15-15U

+15-15

U

+15-15

U

+15-15

12kHI

HIMID3k

80HzLOW

EQU

+15-15U

+15-15

U

+15-15

U

+15-15

CLIP

DIGITAL STEREO EFFECTS PROCESSOR

EFX 2 (INT) RETURN MASTERS

12 CHANNEL COMPACT INTEGRATED LIVE SOUND MIXER

ASSIGN

1MUTE

ASSIGN

2MUTE

ASSIGN

3MUTE

ASSIGN

4MUTE

ASSIGN

5MUTE

ASSIGN

6MUTE

ASSIGN

7MUTE

ASSIGN

8MUTE

ASSIGN

9-10MUTE

ASSIGN

11-12MUTE

SUB SUB SUB SUB1 2 3 4ASSIGN ASSIGN ASSIGN ASSIGN

STEREO

MAIN MIX

GAINLOW CUT

100 Hz

ZEROLEVEL

MICGAIN

5 +50

U

-15dB +30dBGAIN

LOW CUT100 Hz

ZEROLEVEL

MICGAIN

5 +50

U

-15dB +30dBGAIN

LOW CUT100 Hz

ZEROLEVEL

MICGAIN

5 +50

U

-15dB +30dBGAIN

LOW CUT100 Hz

ZEROLEVEL

MICGAIN

5 +50

U

-15dB +30dBGAIN

LOW CUT100 Hz

ZEROLEVEL

MICGAIN

5 +50

U

-15dB +30dBGAIN

LOW CUT100 Hz

ZEROLEVEL

MICGAIN

5 +50

U

-15dB +30dBGAIN

LOW CUT100 Hz

ZEROLEVEL

MICGAIN

5 +50

U

-15dB +30dBGAIN

LOW CUT100 Hz

ZEROLEVEL

MICGAIN

5 +50

U

-15dB +30dB

2

13. Unplug this apparatus during lightning storms or when unused forlong periods of time.

14. Refer all servicing to qualified service personnel. Servicing isrequired when the apparatus has been damaged in any way, such aspower-supply cord or plug is damaged, liquid has been spilled or objectshave fallen into the apparatus, the apparatus has been exposed to rainor moisture, does not operate normally, or has been dropped.

15. This apparatus shall not be exposed to dripping or splashing, and noobject filled with liquids, such as vases, shall be placed on the apparatus.

16. This apparatus has been designed with Class-I construction andmust be connected to a mains socket outlet with a protective earthingconnection (the third grounding prong).

17. This apparatus has been equipped with an all-pole, rocker-style ACmains power switch. This switch is located on the rear panel and shouldremain readily accessible to the user.

18. This apparatus does not exceed the Class A/Class B (whichever isapplicable) limits for radio noise emissions from digital apparatus as setout in the radio interference regulations of the Canadian Department ofCommunications.

ATTENTION — Le présent appareil numérique n’émet pas de bruitsradioélectriques dépassant las limites applicables aux appareilsnumériques de class A/de class B (selon le cas) prescrites dans leréglement sur le brouillage radioélectrique édicté par les ministere descommunications du Canada.

19. Exposure to extremely high noise levels may cause permanenthearing loss. Individuals vary considerably in susceptibility to noise-inducedhearing loss, but nearly everyone will lose some hearing if exposed tosufficiently intense noise for a period of time. The U.S. Government’sOccupational Safety and Health Administration (OSHA) has specified thepermissible noise level exposures shown in the following chart.

According to OSHA, any exposure in excess of these permissible limitscould result in some hearing loss. To ensure against potentiallydangerous exposure to high sound pressure levels, it is recommendedthat all persons exposed to equipment capable of producing high soundpressure levels use hearing protectors while the equipment is inoperation. Ear plugs or protectors in the ear canals or over the ears mustbe worn when operating the equipment in order to prevent permanenthearing loss if exposure is in excess of the limits set forth here.

IMPORTANT SAFETY INSTRUCTIONS1. Read these instructions.

2. Keep these instructions.

3. Heed all warnings.

4. Follow all instructions.

5. Do not use this apparatus near water.

6. Clean only with dry cloth.

7. Do not block any ventilation openings. Install in accordance with themanufacturer’s instructions.

8. Do not install near any heat sources such as radiators, heat registers,stoves, or other apparatus (including amplifiers) that produce heat.

9. Do not defeat the safety purpose of the polarized or grounding-typeplug. A polarized plug has two blades with one wider than the other. Agrounding-type plug has two blades and a third grounding prong. Thewide blade or the third prong are provided for your safety. If theprovided plug does not fit into your outlet, consult an electrician forreplacement of the obsolete outlet.

10. Protect the power cord from being walked on or pinchedparticularly at plugs, convenience receptacles, and the point where theyexit from the apparatus.

11. Only use attachments/accessories specified by the manufacturer.

12. Use only with a cart, stand, tripod, bracket, or table specified bythe manufacturer, or sold with the apparatus. When a cart is used, usecaution when moving the cart/apparatus combination to avoid injuryfrom tip-over.

Duration Per Day Sound Level dBA, Typical In Hours Slow Response Example

8 90 Duo in small club6 924 95 Subway Train3 972 100 Very loud classical music

1.5 1021 105 Tami screaming at Adrian about deadlines

0.5 110 0.25 or less 115 Loudest parts at a rock concert

PORTABLE CART WARNING

Carts and stands - TheComponent should be usedonly with a cart or standthat is recommended bythe manufacturer.A Component and cartcombination should bemoved with care. Quickstops, excessive force, anduneven surfaces may causethe Component and cartcombination to overturn.

WARNING — To reduce the risk of fire or electric shock, donot expose this appliance to rain or moisture.

CAUTION AVISRISK OF ELECTRIC SHOCK

DO NOT OPENRISQUE DE CHOC ELECTRIQUE

NE PAS OUVRIR

CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCKDO NOT REMOVE COVER (OR BACK)

NO USER-SERVICEABLE PARTS INSIDEREFER SERVICING TO QUALIFIED PERSONNEL

ATTENTION: POUR EVITER LES RISQUES DE CHOCELECTRIQUE, NE PAS ENLEVER LE COUVERCLE. AUCUN

ENTRETIEN DE PIECES INTERIEURES PAR L'USAGER. CONFIERL'ENTRETIEN AU PERSONNEL QUALIFIE.

AVIS: POUR EVITER LES RISQUES D'INCENDIE OUD'ELECTROCUTION, N'EXPOSEZ PAS CET ARTICLE

A LA PLUIE OU A L'HUMIDITE

The lightning flash with arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of uninsulated"dangerous voltage" within the product's enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. Le symbole éclair avec point de flèche à l'intérieur d'un triangle équilatéral est utilisé pour alerter l'utilisateur de la présence à l'intérieur du coffret de "voltage dangereux" non isolé d'ampleur suffisante pour constituer un risque d'éléctrocution.

The exclamation point within an equilateral triangle is intended to alert the user of the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance. Le point d'exclamation à l'intérieur d'un triangle équilatéral est employé pour alerter les utilisateurs de la présence d'instructions importantes pour le fonctionnement et l'entretien (service) dans le livret d'instruction accompagnant l'appareil.

3

INTRODUCTIONComprehensive master section, with:• Four 60mm submix mono faders• Separate Left and Right assign for each sub• 60mm main mix stereo fader• TRS insert jacks for main mix• Balanced XLR stereo main outputs• Balanced XLR mono subwoofer output• 12-segment stereo LED metering• Mackie’s (in)famous Rude Solo Light• 9-band stereo graphic EQ (main mix)• EMAC™ 32-bit digital stereo effects with

footswitch jack• 2 aux sends with master level controls• 2 effects sends with master level controls• Level controls for stereo effect returns• Break switch for ‘worry-free’ intermissions• RCA tape out• RCA tape in with stereo level control• Headphone output with level control• Utility out with level control• 12V BNC lamp socket

ABOUT THIS MANUALAbsolutely most important page:Before you start engineering, please read

the “Quick Start” section on page 5. It’s a list ofsteps that will familiarize you with the CFXmixer and help you set up a basic performance.

About those blue numbers:You’ll notice numbers in blue circles, like

this: . Every feature on the CFX mixer hasone of these numbers assigned to it. Whenevera feature is mentioned, described or illustrated,its number will be right next to it.

Thank you for choosing a Mackie CFX MKIImixer! These compact live-sound mixers are de-signed to meet the sound reinforcement needsof almost any small to medium-sized club, meet-ing room, sanctuary, or outdoor gathering.

Here’s a quick glance at all the featuresyou’ve acquired:

8, 12, or 16 mono channels, with:• Variable input gain

(+5 to +50 dB mic, –15 to +30 dB line)• Phantom power (globally switched)• Zero Level gain setting indicator LED• Switchable 100 Hz low-cut filter• TRS insert jack• 2 pre/post-fader aux sends• 2 post-fader effects sends• 3-band mid-sweep EQ• Pan, mute, and 1-2/3-4 busing• PFL solo• 60mm mono fader

2 stereo line channels, with:• Variable input gain (–20 to +20 dB)• 2 pre/post-fader aux sends• 2 post-fader effects sends• 4-band EQ• Pan, mute, and 1-2/3-4 busing• PFL solo• 60mm stereo fader

Please write your serial number here forfuture reference (i.e., insurance claims, techsupport, return authorization, etc.):

Purchased at:

Date of purchase:

Part No. 0014465 Rev. A 12/04©2004 LOUD Technologies Inc. All Rights Reserved. Printed in China.

4

Don’t forget to visit our website at www.mackie.comfor more information about this and other Mackie products.

CONTENTSMASTER SECTION FEATURES ................................15

MAIN MIX FADER ........................................ 15 METERS ......................................................15 RUDE SOLO.................................................15 STEREO GRAPHIC EQ ....................................15 TAPE LEVEL .................................................16 BREAK SWITCH ...........................................16 PHONES LEVEL ............................................16 UTILITY OUT LEVEL ......................................16 SUB FADERS ................................................16 LEFT/RIGHT SUB ASSIGN ............................. 16 AUX MASTER SEND ......................................17 EFX 1 MASTER SEND ....................................17 EFX 1 RETURN ............................................17 EMAC EFFECTS PROCESSOR ........................... 17 EFX 2 SEND .................................................17 TO MAIN MIX .............................................17 EFFECTS TO MONITOR ..................................18 PRESET SELECT ............................................18 TIME/RATE .................................................19 DAMPING/DEPTH .......................................19 WIDE .........................................................19 BYPASS ......................................................19 CLIP ........................................................... 19

GENERAL PRECAUTIONS AND CONSIDERATIONS .... 20APPENDIX A: Service Info ................................... 20

Warranty Service .....................................20Troubleshooting ........................................ 20Repair .....................................................21

APPENDIX B: Technical Info ..................................21Specifications ...........................................21Block Diagram ..........................................22Contributors and Colophon .........................23

CFX MKII SERIES LIMITED WARRANTY..................23

IMPORTANT SAFETY INSTRUCTIONS ......................2INTRODUCTION ...................................................3ABOUT THIS MANUAL ..........................................3QUICK START ......................................................5APPLICATIONS DIAGRAMS ....................................6

PATCHBAY FEATURES............................................8 MIC .............................................................8 LINE IN .........................................................8 INSERT .........................................................8

EFFECTS: SERIAL OR PARALLEL? ...................9 STEREO LINE IN .............................................9 MAIN OUT ....................................................9 SUBWOOFER OUT..........................................9 MAIN INSERT ................................................9 UTILITY OUT ............................................... 10 SUB OUT ....................................................10 AUX SEND ..................................................10 EFX SEND ...................................................10 STEREO EFX RETURN ....................................10 TAPE INPUT ................................................11 TAPE OUTPUT ..............................................11 PHONES .....................................................11 EFX FOOTSWITCH ........................................ 11 LAMP .........................................................11 AC POWER INPUT ........................................ 11 POWER SWITCH ..........................................11 POWER STATUS ...........................................11

CHANNEL STRIP FEATURES ..................................12 PHANTOM POWER ......................................12 GAIN .........................................................12 ZERO LEVEL ................................................12 LOW CUT ....................................................12 AUX........................................................... 12 PRE FADER..................................................13 EFX 1 (EXT) .................................................13 EFX 2 (INT) .................................................13 EQ .............................................................13 PAN ........................................................... 14 MUTE .........................................................14 ASSIGN ......................................................14 FADER ........................................................14 SOLO PFL....................................................14

5

WIDE BYPASS100 100

REVERBSDELAYS

CHORUS/FLANGE/PHASER

DAMPING

DEPTH

TIME

RATE

NORMAL NORMALEFX

SM. ROOMMD. PLATELG. PLATE

LG. HALL

GATEDREVERSE

CATHEDRAL

MD. HALL

SPRINGPHASER

DELAY 4CHORUS

DELAY 3

DELAY 1

FLANGE

DELAY 2

CLIP

0dB=0dBu

LEFT RIGHT

ZEROLEVEL

SET

TAPE LEVEL

OOMAXPHONES LEVEL

UTILITY OUT LEVEL

1(EXT)

48v

RIGHT

LEFT

RIGHT

LEFT

RIGHT

LEFT

RIGHT

LEFTdB

30

20

10

OO

4050

5

5

U

60

10

dB

30

20

10

OO

4050

5

5

U

60

10

dB

30

20

10

OO

4050

5

5

U

60

10

dB

30

20

10

OO

4050

5

5

U

60

10

dB

30

20

10

OO

4050

5

5

U

60

10

15–

15+

5

10

0

5

10

–15

+15

5

10

0

5

10

POWER STATUS

RUDESOLO

BREAK SWITCH(MUTES ALL CHANNELS)

U

+15OO

U

+15OO

U

+15OO

U

+15OO

U

+20OO

U

+20OO

U

+10OO

U

+15OO

U

+15OO

U

+15OO

1

2

AUX

EFX

MASTER SEND

22

10

7

4

2

0

2

4

7

10

20

30

STEREO

MAIN MIX

EFX 1 RETURNEFX 2SEND

TO MAIN MIXEFFECTS TO MONITORAUX 1 AUX 2

PHANTOM POWER

STEREO GRAPHIC EQ

1K50025063 125 16K2K 4K 8K

CLIP

DIGITAL STEREO EFFECTS PROCESSOR

EFX 2 (INT) RETURN MASTERS

12 CHANNEL COMPACT INTEGRATED LIVE SOUND MIXER

SUB SUB SUB SUB1 2 3 4ASSIGN ASSIGN ASSIGN ASSIGN

STEREO

MAIN MIX1

3-4

1-2

U

+15OO

U

+15OO

U

+15OO

U

+15OO

1

2

600

1.5k150

8k100

12kHI

MID

FREQ

80HzLOW

EQU

+15-15U

+15-15

U

+15-15

L R

PAN

dB

30

20

10

OO

4050

5

5

U

60

10

SOLOPFL

1

EFX2

(INT)

EFX1

(EXT)

PRE FADER

AUX

ASSIGN

1MUTE

DOWN

UP

GAINLOW CUT

100 Hz

ZEROLEVEL

MICGAIN

5 +50

U

-15dB +30dB

QUICK STARTWe know you can’t wait toget the show on the road.Who has time to read abooooring manual? That’sfine — the CFX MKII

mixer is designed to set up quickly and operateintuitively — but please, READ THIS PAGE!

ZERO THE CONSOLE:1. Turn everything off, including the mixer’s

POWER switch and PHANTOM POWERswitch.

2. Channel strip GAIN, AUX, EFX, andFader down.

3. STEREO GRAPHIC EQ sliders centered.4. MASTER AUX and EFX SENDS, and EFX

RETURNS down.5. Channel strip EQ and PAN controls

centered.6. Channel strip ASSIGN 1-2 and MUTE

switches down.7. Channel strip LOW CUT, PRE FADER, and

ASSIGN 3-4 switches up.8. SUB 1 ASSIGN LEFT, SUB 2 ASSIGN

RIGHT down; all other SUB ASSIGNswitches up.

9. MAIN MIX and SUB Faders down.

MAKE THE CONNECTIONS:1. Connect your amp’s outputs to your

speaker inputs (unless, of course, you havepowered monitors).

2. Plug all the sound system components intosuitable AC outlets, properly grounded andcapable of delivering adequate current.

3. Using XLR or TRS cables, make connec-tions from your mixer’s MAIN OUT to youramplification system’s line inputs.

4. Make connections from your microphonesand instruments to the mixer: Connectbalanced microphones to the mono channelMIC jacks. (For condenser microphones,engage the PHANTOM POWER switch,located just above the meters.) Connectline-level instruments (synthesizers, guitareffects, direct boxes) to the mono or stereochannel LINE IN TRS jacks.

5. Turn all the power switches on, leaving theamplifier’s switch for last.

6. Turn up the MAIN MIX Fader to the“–30” label, for now. We’ll crank it up later on.

7. Turn up SUB Faders 1 and 2 to unity gain(“U” label).

SET THE LEVELS:1. Choose one of the microphones or instru-

ments you connected. Make some noise. Ifit’s a microphone, sing at your normalsinging volume. If it’s a synthesizer, play itat its normal output level.

2. While making noise, turn up that channel’sGAIN until the adjacent ZERO LEVELstarts blinking.

3. Disengage (up) that channel’s MUTE.4. Raise that channel’s fader to unity gain

(“U” label). You should be hearing yournoise now.

5. If necessary, apply channel EQ changes.(You may need to compensate for levelchanges with the channel fader.)

6. Repeat steps 1 through 5 for the remainingactive channels.

7. Stop making noise. Everyone: start makingmusic.

6

5 6 7 8 1211109

21

1 2RL RL

RLRL

21

CHANNEL INSERTS STEREO EFX RETURNS

MAININSERT

PHONESOUT

1 2 3 4

CHANNEL INPUTS

L

L

R

L

R

TAPEOUT

TAPEIN

1 2 3 4 5 6 7 8

UTIL OUTBAL/UNBAL

SUB OUT75Hz

MAIN OUTL R

MAIN OUTBAL/UNBAL

AUX SENDSBAL/UNBAL

21

EFX SENDSBAL/UNBAL

SUB OUTSBAL/UNBAL

R

43

Guitar Effects Drum Machine

Keyboard, or other line-level input

Keyboard, or other line-level input

StereoPower Amplifier

StereoPower Amplifier

Right PA SpeakerLeft PA Speaker

CD Player

Stereo EQ

Stereo EQ

out

inout

in

StereoCompressor

Stereo Compressor Stereo Compressor

Stage Monitor Stage Monitor

Mono in / stereo outReverb

Digital Delay

CFX12 MKII — Small Club Gig

TWEAK THE MIX:1. Engage MUTE on all channels except your

rhythm section (drums & bass).2. Adjust the rhythm section’s channel faders

to get a good balance of levels.3. Un-mute the other active channels and

adjust their faders.4. Now that you have a rough mix going, turn

up the MAIN MIX Fader to a comfortablelistening level.

5. If the overall mix has an equalizationproblem, make adjustments to the STEREOGRAPHIC EQ. If an individual channel isthe problem, use its EQ instead.

6. Using channel EFX 2 (INT) and the EMACEFFECTS PROCESSOR, experiment withadding some effects.

7. Depending on how much time you’ve got,keep tweaking. Walk the room to see how itsounds away from your mixer. Keep tweaking.

KNOW THESE THINGS:• Never listen to loud music for prolonged

periods. Please see “Safety Instructions” onpage 2 for information on hearing protection.

• Never plug amplifier outputs into anythingexcept speakers.

• Never use guitar cables to connect amplifiersto speakers.

• Before making connections to an externalamp or reconfiguring an amp’s routing,turn the amp’s level (gain) controls down,turn the power off, make the changes, turnthe power back on, and then turn the levelcontrols back up.

• When you shut down your equipment, turnoff any external amplifiers first. Whenpowering up, turn on the amplifiers last.

• Save the shipping box and packing material!You may need them someday, and you probablydon’t want to have to pay for that again.

APPLICATIONS DIAGRAMS

7

CFX16 MKII — Large Club Gig or Auditorium using a Subwoofer

CFX20 MKII — Church Sound Reinforcement with Separate Utility Mix

5 6 7 8 9 10 11 12 16151413

21

1 2RL RL

RLRL

21

CHANNEL INSERTS STEREO EFX RETURNS

MAININSERT

PHONESOUT

1 2 3 4

CHANNEL INPUTS

L

L

R

L

R

TAPEOUT

TAPEIN

1 2 3 4 5 6 7 8

UTIL OUTBAL/UNBAL

SUB OUT75Hz

MAIN OUTL R

MAIN OUTBAL/UNBAL

AUX SENDSBAL/UNBAL

21

EFX SENDSBAL/UNBAL

SUB OUTSBAL/UNBAL

R

43

Subwoofer

Guitar Effects

Drum Machine

Keyboard, or other line-level input

Keyboard, or other line-level input

MonoPower Amplifier

MonoPower Amplifiers

Right PA SpeakerLeft PA Speaker

CD Player

Stereo EQ

Optional Live Recording

out

inout

in

StereoCompressor

Stereo Compressor Stereo Compressor

Stage Monitor Stage Monitor

Mono EQMono EQ

Mono in / stereo outReverb

Digital Delay

Mono Power Amplifiers

Digital Multitrack Recorder

Guitar Effects

Direct Box

5 6

7 8 9 10 11 12 13 14 15 16 20191817

21

1 2RL RL

RLRL

21

CHANNEL INSERTS STEREO EFX RETURNS

MAININSERT

PHONESOUT

1 2 3 4

CHANNEL INPUTS

L

L

R

L

R

TAPEOUT

TAPEIN

1 2 3 4 5 6 7 8

UTIL OUTBAL/UNBAL

SUB OUT75Hz

MAIN OUTL R

MAIN OUTBAL/UNBAL

AUX SENDSBAL/UNBAL

21

EFX SENDSBAL/UNBAL

SUB OUTSBAL/UNBAL

R

43

Subwoofer

Guitar Effects

Drum Machine

Keyboard, or other line-level input

Keyboard, or other line-level input

Assistive ListeningTransmitter

StereoPower Amplifier

MonoPower Amplifier

Right PA SpeakerLeft PA Speaker

CD Player

Stereo EQ

Stereo EQ

Cry Room Nursery

out

inout

in

StereoCompressor

Stereo Compressor Stereo Compressor

Stage Monitor

Mono EQ

Mono in / stereo outReverb

Digital Delay

MonoPowerAmplifier

StereoPowerAmplifier

Guitar Effects

Direct Box

WirelessMicrophoneReceivers

Stereo EQ

StereoPowerAmplifier

Left RightChapel

Cassette or DAT Recorder

8

PATCHBAY FEATURES

“tip”

This plug connects to one of the mixer’s Channel Insert jacks. “ring”

tipring

sleeve

SEND to processor

RETURN from processor

(TRS plug)

These unbalanced jacks are configured thusly:

Direct out with no signal interruption.Insert only to first “click.”

Channel Insert jack

Channel Insert jack

Channel Insert jack

Direct out with signal interruption.Insert all the way in to the second “click.”

For use as an effects loop.(TIP = SEND to effect, RING = RETURN from effect.)

MONO PLUG

MONO PLUG

STEREO PLUG

Tip = Send (to effects device input)Ring = Return (from effects device output)Sleeve = Common ground (connect shieldto all three sleeves)Specialty “Y” cables, developed just for these

jacks, are widely available.Besides being used for inserting external

devices, these jacks can also be used as chan-nel direct outputs; post-GAIN, post-LOW CUT,and pre-EQ. Here are three ways you can usethe channel INSERT jacks:

MIC 1

BAL/UNBAL

LINE IN

INSERT

BAL/UNBAL

LINE IN

INSERT

BAL/UNBAL

LINE IN

INSERT

BAL/UNBAL

LINE IN

INSERT

BAL/UNBAL

LINE IN

INSERT

BAL/UNBAL

LINE IN

INSERT

BAL/UNBAL

LINE IN

INSERT

BAL/UNBAL

LINE IN

INSERT

MIC 2 MIC 3 MIC 4 MIC 5 MIC 6 MIC 7 MIC 8

At the risk of stating the obvious, this iswhere you plug everything in: microphones,line-level instruments, effects, headphonesand the ultimate destination for your sound:PA system, tape recorder, etc.

MICThe CFX MKII mixer is equipped with rugged,

low noise, phantom-powered microphone pream-plifiers, providing up to 50 dB of crystal-clearamplification. Their balanced circuitry rejects allmanner of extraneous interference. Professionalcondenser, dynamic, and ribbon mics will allsound excellent through these XLR inputs.

You can plug in almost any kind of balancedmic that has a standard XLR-type male micconnector.

LINE INThe line inputs share circuitry (but not

phantom power) with the mic preamps, andcan be driven by balanced or unbalancedsources at almost any level. You can use theseTRS inputs for virtually any signal you’ll comeacross, from –25 dBu up to +38 dBu.

INSERTThis is where you connect serial effects

such as compressors, equalizers, de-essers orfilters. The send is low-impedance (150 ohms),capable of driving any line-level device. The re-turn is high-impedance (10k ohms) and can bedriven by almost any device.

SHIELD

COLD

HOT

3

2

1

XLR BALANCED WIRING

SLEEVE(SHIELD)

TRS BALANCED WIRING

TIP(HOT)

RING(COLD)

SLEEVE(SHIELD)

TIP(HOT)

TS UNBALANCED WIRING

9

EFFECTS: SERIAL OR PARALLEL?Effects devices are used

either in serial or in parallel:“Serial” means that the

entire signal is routedthrough the effects device.

Examples: preamps, compressor/limiters,graphic equalizers.

“Parallel” means that a portion of the signalis tapped off to the device (usually via a mixer’saux send), processed and returned (usually viaa mixer’s aux return), to be mixed with the origi-nal “dry” signals. Multiple signals (via multiplemixer channels) can all make use of the sameparallel effects device. Examples: reverb, digitaldelay, chorus. See diagrams below.

Dry Signal

Serial Device

ProcessedSignal

InsertSend

InsertReturn

Dry Signal(s) Dry Signal(s)

AuxSend

AuxReturn

Wet Signal

Channel PathMix

Stage

OutputSection

ProcessedSignal

Signal Processor(e.g., Compressor)

Signal Processor(e.g., Reverb)

Parallel Device

STEREO LINE INThese balanced inputs are designed for ste-

reo or mono, balanced or unbalanced signals,from –20 dB to +20 dB. These TRS inputs canbe used with just about any professional orsemipro instrument, effect or tape player.

When connecting a mono device (just onecord), always use the LEFT (MONO) input andplug nothing into the RIGHT input. A trickcalled “jack normalling” will cause the signal toappear on both sides.

MAIN OUTComing in two flavors, XLR and TRS, the

main output represents the end of the mixerchain, where your fully mixed and enhancedstereo signal enters the real world.

The XLR balanced outputs will add 6 dBwhen connected to balanced inputs, therebyelevating signal from the noise floor by thatamount.

The TRS balanced outputs offer the advan-tage of having no 6 dB level change to deal with,while still providing extraneous noise rejection.

SUBWOOFER OUTThe CFX MKII mixer has an integrated

mono-summing 75 Hz 3rd-order low-pass filter.It taps the left and right MAIN OUT sig-nals, mixes them into a mono signal, thenremoves all but the deepest bass information.Patch this balanced XLR output to a high-pow-ered mono-summed amp and subwoofer (or anactive subwoofer), and the music police will beright over.

MAIN INSERTWith nothing plugged into these jacks, the

mix signal goes from the mix amp straightthrough to the MAIN MIX Faders . But whenyou plug a serial device into these jacks, the mixleaves the mixer, goes through the device andback into the mixer’s main mix faders.

If you want to send your main mix through acompressor/limiter or similar device, these arethe jacks for you. Since the insert is before themix faders, moving the fader will not alter thesignal strength sent to the compressor, therebypreserving its compression characteristics.

These unbalanced jacks are configured thesame as the channel strip insert jacks. Seepage 8 for wiring and usage information.

PHONES

FOOTSWITCH

EFX

LAMP12V 0.5A

MAIN OUT

L

R

11LEFT

AUX SENDUTILITY OUT SUB OUT

TAPEINPUT

TAPEOUTPUT

L L

R

1

2

1

2

L

L R

R

L

R

EFX SENDSTEREO EFXRETURN

MAIN INSERT

(MONO) (MONO)

L

R

S

75HzSUB OUT

R

1

2

1

2

3

4

MAIN OUT

9LEFT

RIGHT

10RIGHT

12

10

PHONES

FOOTSWITCH

EFX

LAMP12V 0.5A

MAIN OUT

L

R

11LEFT

AUX SENDUTILITY OUT SUB OUT

TAPEINPUT

TAPEOUTPUT

L L

R

1

2

1

2

L

L R

R

L

R

EFX SENDSTEREO EFXRETURN

MAIN INSERT

(MONO) (MONO)

L

R

S

75HzSUB OUT

R

1

2

1

2

3

4

MAIN OUT

9LEFT

RIGHT

10RIGHT

12

UTILITY OUTThe stereo signal at these TRS jacks is the

same as at the MAIN OUT , but with oneimportant difference:

After the MAIN MIX Fader , the mix issent through the UTILITY OUT LEVEL con-trol, allowing you to set levels as desiredwithout disturbing the main mix level.

SUB OUTIn live sound applications, these TRS jacks

can be patched into one or two stereo amplifi-ers, thereby allowing you to control levelsindependently via the SUB Faders .

Alternatively, use the MAIN OUT tofeed the amplifiers and one stereo SUB OUT

pair to feed a recorder.In studio applications, these outputs can be

used as four separate paths to feed four tracksof a multitrack recorder.

See ASSIGN and SUB ASSIGN formore information.

AUX SENDTo create a stage monitor mix, with levels

set independently from the main mix, patchthese TRS jacks into your monitor amplifier in-puts. These jacks can also be used to feed theinputs of an effects device.

See AUX and PRE FADER for moreinformation.

EFX SENDThe signal at these TRS outputs is post-

fader only, so they cannot be used astraditional stage monitor cues. They’re in-tended to patch into effects device inputs;hence the name “EFX.” See EFX 1 (EXT) and EFX 2 (INT) for more information.

Note: The EFX 2 signal path also feeds theCFX mixer’s internal EMAC EFFECTS PRO-CESSOR inputs. If you’re using EMAC andjust one outboard processor, patch that proces-sor via EFX SEND 1 for independent control ofthe effects send level.

We recommend going into a stereo reverb inmono and returning in stereo. We have foundthat on most “stereo” reverbs the second inputjust ties up an extra EFX send and adds noth-ing to the sound. There are exceptions, so feelfree to try it both ways. If your effects device istrue stereo all the way through, use EFX SEND 1to feed its left input and EFX SEND 2 to feedthe right input.

STEREO EFX RETURNPatch the outputs of external parallel ef-

fects devices to these inputs.Note: The EFX 2 return signal is combined

with the signal from the CFX mixer’s internalEMAC EFFECTS PROCESSOR . If you’reusing EMAC and just one outboard processor,patch the outboard processor via EFX 1 RETURNfor independent control of the effects return level.

When connecting a mono device (just onecord), always use the LEFT (MONO) input andplug nothing into the RIGHT input. A trickcalled “jack normalling” will cause the signal toappear on both sides.

SLEEVE(SHIELD)

TRS BALANCED WIRING

TIP(HOT)

RING(COLD)

SLEEVE(SHIELD)

TIP(HOT)

TS UNBALANCED WIRING

11

CLIP

LEFT RIGHT

48v

POWER STATUS

22

10

7

4

POWER

ON

TIP OURING R

FOR USE(TIP = S

DIRECT OUT WITH SIGNAL INTERRUPTION TO MASTER

OPTIONAL USES FOR I

INSERT ALL THE WAY IN TOTHE "SECOND CLICK"

MONO PLUG

120 VAC, 50/60 Hz,35 WATTS

12 CHANNEL COMPACT INTEGRATCFX12

TAPE INPUTPatch the outputs of your intermission en-

tertainment here. Any line-level mono or stereodevice can be used: tape, CD player, televisionaudio, etc. See BREAK SWITCH for moreinformation.

When connecting a mono device (just onecord), you’ll need a “Y-splitter” RCA adapter. Itturns a mono output cord into two cords; soboth the left and right tape input jacks can bepatched. This adapter is widely available.

TAPE OUTPUTUse these jacks to capture the entire perfor-

mance to tape. The signal at these jacks is themain mix, after the MAIN INSERT but be-fore the MAIN MIX Fader . The main mixsignal will be present at these jacks regardlessof the position of the MAIN MIX Fader.

PHONESThe stereo signal at these jacks is the same

as at the MAIN OUT , but with two impor-tant differences:

After the MAIN MIX Fader , the mix issent through the PHONES LEVEL control,allowing you to set levels as desired, withoutdisturbing the main mix level.

When a channel’s SOLO PFL is engaged,the main mix signal at this output will be re-placed by the solo signal, allowing the engineerto audition channels without disturbing themain mix.

The stereo PHONES jack will drive anystandard headphones to very loud levels.Walkperson-type phones can also be used withan appropriate adapter.

Note: Please see the “Safety Instructions” onpage 2 for information on hearing protection.

EFX FOOT SWITCHYou can connect a normally-open foot switch

to this connector to duplicate the function ofthe BYPASS switch, located in the EMACEFFECTS PROCESSOR . Closing the switchconnection causes the EFX BYPASS indicatorto light and mutes the effects.

Note: When a foot switch is plugged intothe FOOT SWITCH jack, the BYPASS switchis disabled.

Just like the BYPASS switch, thisaffects only the internal EMAC EFFECTSPROCESSOR and not any device plugged intoSTEREO EFX RETURN 2 .

LAMPThis BNC-type connector will accept almost

any of the widely available 12VDC 0.5 ampgooseneck lamps, made by Littlite® and others.If your work involves mixing in the back ofdark theaters, this lamp will likely becomeyour best friend.

AC POWER INPUTThis IEC Socket is where you connect the

supplied AC linecord to provide AC power tothe CFX mixer. Plug the cord into a suitableAC outlet, properly grounded and capable ofdelivering adequate current.

If you happen to lose the AC linecord,replacements are available at any office/computer supply store.

POWER SWITCHPOWER STATUS

The POWER switch is located on therear panel, adjacent to the AC Power Input

. Push the side of the switch labeled “ON”to turn the mixer on; you should see thePOWER STATUS LED glow in confirma-tion. To turn the mixer off, push the switch theother way. (Let’s all say a big collective “Duh.”)

SLEEVE(SHIELD)

TRS HEADPHONE WIRING

TIP(LEFT)

RING(RIGHT)

TIPSLEEVETIPSLEEVE

RCA UNBALANCED WIRING

SLEEVE(GROUND)

TIP(HOT)

TS FOOTSWITCH WIRING

12

1

3-4

1-2

U

+15OO

U

+15OO

U

+15OO

U

+15OO

1

2

600

1.5k150

8k100

12kHI

MID

FREQ

80HzLOW

EQU

+15-15U

+15-15

U

+15-15

L R

PAN

dB

30

20

10

OO

4050

5

5

U

60

10

SOLOPFL

1

EFX2

(INT)

EFX1

(EXT)

PRE FADER

AUX

ASSIGN

1MUTE

GAINLOW CUT

100 Hz

ZEROLEVEL

MICGAIN

5 +50

U

-15dB +30dB

CHANNEL STRIP FEATURESThrough a stereo channel’s stereo LINE IN

TRS inputs, there is 20 dB of attenuation fullydown and 20 dB of gain fully up, with a “U”(unity gain) mark at 12:00 (knob halfway up).

Having 20 dB of line-level attenuation canbe very handy when you are injecting a signalthat is very hot, when you want to add a lot ofEQ boost, or both. Without this “virtual pad,” itwould be very difficult to control the signal andmight lead to channel clipping.

ZERO LEVELThis handy LED, which (we hope) you al-

ready read about in “QUICK START,” is triggeredto glow when it receives an audio signal at orabove 0 dBu.

If the LED is glowing, as opposed to flicker-ing, turn the GAIN down. If the LED isdoing almost nothing, turn the GAIN up.

For a more accurate method of setting gainlevels, please see RUDE SOLO (page 15),where a soloed signal will appear on themixer’s meters .

LOW CUTThe LOW CUT switch, often referred to as a

high pass filter (depends on how you look atit), cuts bass frequencies below 100 Hz at arate of 18 dB per octave.

We recommend that you use LOW CUT onevery microphone application except kickdrum, bass guitar, or bass-heavy synth patches.LOW CUT can also help reduce the possibilityof feedback in live situations and it helps toconserve amplifier power.

AUXThese knobs tap a portion of each channel

signal and send it out, via the AUX SEND jacks, to an external device for parallel effectsprocessing or stage monitoring.

AUX levels are controlled by these AUX knobsand by the AUX MASTER SENDs . These aremore than mere effects and monitor sends:they can be used to generate separate mixesfor recording or “mix-minuses” for broadcast.

Each AUX knob’s level ranges from offthrough unity (the center detent position) onup to 15 dB of extra gain (fully clockwise).

The line-level stereo channels’ AUX knobscontrol a mono sum of the channel’s stereo sig-nals. For instance, on the CFX20, channel 17(L) and 18 (R) mix together to feed thatchannel’s AUX send knobs.

PHANTOM POWERHa! We tricked you! The phantom power

switch is not located in the channel strip sec-tion at all! It’s way over on the right side of themixer (see graphic on previous page). We’rejust mentioning it here since it applies to thechannels; specifically, what type of micro-phones you have plugged into them.

Push in this switch to provide phantompower to the XLR MIC input jacks. All of theXLR mic inputs are capable of providing phan-tom power. Phantom power is required tooperate most condenser microphones (somecondenser microphones are battery-powered).The CFX MKII mixers provide +48VDC phantompowering on pins 2 and 3 of the XLR connectors.

If you have dynamic, ribbon, or tube micsthat do not require phantom power, leave thePHANTOM POWER switch out. If you are us-ing both condenser and dynamic mics, don’tworry. Phantom power will not hurt most dy-namic mics. Check the microphone’s usermanual if you’re not sure.

Caution: Turn all outputlevels down before operat-ing this switch to avoid thepossibility of a “pop” in yourspeakers.

Connecting an external line-level device to anXLR input connector with the phantom powerswitched on could damage the device. We recom-mend using the LINE IN and STEREO LINEIN jacks for connecting line-level signals.

GAINIf you haven’t already, please read the “SET

THE LEVELS” portion of “QUICK START,” onpage 5.

GAIN adjusts the input sensitivity of themic and line inputs connected to the channels,mono and stereo. This allows signals from theoutside world to be adjusted to optimal internaloperating levels.

If the signal originates through a monochannel’s MIC XLR jack, there will be 5 dBof gain with the knob fully down, ramping to 50dB of gain fully up.

Through a mono channel’s LINE IN TRSinput, there is 15 dB of attenuation fully downand 30 dB of gain fully up, with a “U” (unitygain) mark at 12:00 (knob halfway up).

Mono Channel

13

PRE FADERThe aux send rule of thumb: For parallel

effects processing, use aux sends in post-fadermode. For stage monitors, use pre-fader mode(see diagram below).

With this switch disengaged (up), AUX 1and 2 receive signals in post-fader mode: post-low cut, post-insert, post-EQ, post-mute, andPOST-fader. Any changes made to the channelcontrols will affect the AUX signal.

With this switch engaged (down), AUX 1 and2 receive signals in pre-fader mode: post-low cut,post-insert, post-EQ, post-mute, and PRE-fader.Any changes made to the channel controls,EXCEPT the fader, will affect the AUX signal.

In pre-fader mode, you can take thedrummer’s vocals out of the main mix by turn-ing his fader down, but since he still hearshimself in the monitors, he’s happy.

EFX 1 (EXT)EFX 1, designed for feeding the inputs of

parallel effects devices, behaves exactly like anAUX send, but it’s always in post-fadermode: Any changes made to the channel controlswill affect the EFX signal. The PRE FADER switch has no effect on the EFX sends.

EFX 2 (INT)EFX 2 is identical to EFX 1 with one big dif-

ference: In addition to feeding the EFX SEND jacks, it also feeds the inputs to the EMAC

EFFECTS PROCESSOR . If you’re usingEMAC and just one outboard processor, patchthe outboard processor via EFX RETURN 1. Youcan use EMAC and an outboard device via EFX2; just remember that the sends (EFX 2 (INT)

, EFX 2 SEND ) and returns (TO MAINMIX ) control two devices. The PRE FADER

switch has no effect on the EFX sends;they’re always post-fader.

EQThe CFX MKII mixer has low shelving, mid

peaking, and high shelving EQ. “Shelving”means that the circuitry boosts or cuts all fre-quencies past the specified frequency. Forexample, boosting the LOW EQ knob boosts

bass frequencies at 80 Hz and below. “Peaking”means that only a selected “hill” of frequenciessurrounding a center “hilltop” frequency is af-fected by the EQ control.

Everything in moderation (including mod-eration): with EQ, although you can bringa sound to life, you can also screw thingsup. If you max the EQs on every channel,you’ll get mix mush, not to mention drivingyour mix levels near or beyond clipping. Soequalize subtly; use the left sides of theknobs (cut) as well as the right (boost).

HI EQThis control provides up to 15 dB of

boost or cut at 12 kHz and above, and it isalso flat at the detent. Use it to add sizzleto cymbals or an overall sense of transpar-ency or edge to keyboards, vocals, guitar,and bacon frying. Turn it down a little toreduce sibilance or hide tape hiss.

MID EQShort for “midrange,” this knob provides 15

dB of boost or cut, also flat at the center detent.Midrange EQ is often considered the mostdynamic, because the frequencies thatdefine any particular sound are almostalways found in this range. You can createas many interesting and useful EQ changesby turning this knob down as well as up.

The mono channels employ a semi-parametric mid-sweep EQ. In addition to beingable to set the amount of boost, you can “aim”that boost at a specific frequency; anywherefrom 100 Hz to 8 kHz.

The stereo channels employ a 2-stage fixed-frequency MID EQ. HI-MID is centered at 3kHz;LOW-MID is centered at 400 Hz.

LOW EQThis control provides up to 15 dB of boost or

cut at 80 Hz and below. The circuit is flat (noboost or cut) at the center detent position.This frequency represents the punch in bassdrums, bass guitar, fat synth patches, and high-testosterone male singers.

When adding boost to the channel’s low EQ,simultaneously engaging the LOW CUT switch can create an audible low frequency boostwithout boosting stage rumble, mic handlingclunks, and breath pops.

20Hz 100Hz 1kHz 10kHz 20kHz

–15

–10

–5

0

+5

+10

+15

20Hz 100Hz 1kHz 10kHz 20kHz

–15

–10

–5

0

+5

+10

+15

20Hz 100Hz 1kHz 10kHz 20kHz

–15

–10

–5

0

+5

+10

+15

Mid EQ

Low EQ

Hi EQ

GAIN INSERTLO CUT EQ

FADER PAN1-2

3-4

AUX 1PRE-POST

"POST"SIGNAL

"PRE" SIGNAL

AUX 2

INPUT MUTE

TO AUX 1 MASTER SEND LEVEL

TO AUX 2 MASTER SEND LEVEL

TO EFX 1 MASTER SEND LEVEL

TO EFX 2 MASTER SEND LEVEL

EFX 1

EFX 2“Pre vs. Post” AuxiliarySignal Flow Diagram

Stereo Channel

MID400Hz

L R

PAN

1-2dB10

LOW

12kHI

HIMID3k

80HzLOW

EQU

+15-15U

+15-15

U

+15-15

U

+15-15

ASSIGN

11-12MUTE

14

1

3-4

1-2

600

1.5k150

8k100

12kHI

MID

FREQ

80HzLOW

EQU

+15-15U

+15-15

U

+15-15

L R

PAN

dB

30

20

10

OO

4050

5

5

U

60

10

SOLOPFL

ASSIGN

1MUTE

PANPAN adjusts the amount of channel signal

sent, left versus right, to the SUB OUTs (and ultimately the MAIN OUTs via theSUB ASSIGN switches). On mono chan-nels, the knob places the signal somewherebetween hard left and hard right. On stereochannels, it works like the balance control onyour home stereo, by attenuating one side orthe other.

With the PAN knob hard left, the signal willfeed SUB 1 and SUB 3 (assuming the channel’sASSIGN switches are engaged).

With the PAN knob hard right, the signalwill feed SUB 2 and SUB 4 (assuming thechannel’s ASSIGN switches are engaged).

With the PAN knob set somewhere in be-tween, the signal will be shared across bothsides of the mix.

MUTEWhen you engage a channel’s mute switch,

its signal disappears from these outputs: MAINOUT , MAIN INSERT , SUB OUT 1-4 ,AUX SEND 1 & 2 , EFX SEND 1 & 2 (including the send to the EMAC EFFECTSPROCESSOR ). The only thing it doesn’tmute is the channel’s SOLO PFL switch, soyou can audition channels, via headphones,without sending them to the main mix.

ASSIGNUsed in conjunction with the PAN knob,

ASSIGN determines the final destination of achannel’s signal. Engaging ASSIGN 1-2, for in-stance, sends that channel’s signal to the SUB1 and 2 Faders and, via their SUB ASSIGN

switches, the MAIN MIX Fader .Typically, ASSIGN 1-2 will be engaged on all

channels destined for the main mix. By config-uring SUB 1 and 2 to feed the main mix, thechannel ASSIGN 1-2 switches become theequivalent of being “Main Mix” switches.

Some channels can use ASSIGN 3-4 in-stead; creating a submix for a set of channels(all the drum channels, for instance). Then, byconfiguring SUB 3 and 4 to also feed the mainmix, you can “ride” the SUB 3 and 4 Faders independently of the rest of the mix.

SUB Faders , SUB ASSIGN , andMAIN MIX Fader will explain this further.

FADERAlthough the most self-explanatory item on

a mixer, we’ll explain it anyway: The fader isthe master level control for the channel’s sig-

nal. Subtle adjustment of the channels’ faderpositions is the key to a finely-tuned mix.

Typically (providing the GAIN knob is setcorrectly) the fader position will be positionedsomewhere between 0 dB (“U”) and –30 dB.

If you have a fader set all the way up, adding10 dB of gain, that’s usually a sign that your GAIN

knob is set too low. Conversely, if the fader isset way down, your GAIN may be set too high.

“U” LIKE UNITY GAINMackie mixers have a “U”symbol on almost every levelcontrol. This “U” stands for“unity gain,” meaning nochange in signal level. Once

you have adjusted the input signal to line-level,you can set every control at “U” and your sig-nals will travel through the mixer at optimallevels. What’s more, all the labels on our levelcontrols are measured in decibels (dB), soyou’ll know what you’re doing level-wise if youchoose to change a control’s settings.

SOLO PFLEngaging a channel’s SOLO switch causes

this dramatic turn of events: The PHONES and Meters , which ordinarily receive themain mix signals, instead receive the SOLOPFL signal. PFL, being a mono signal, is sent toboth sides of the PHONES outputs and to theLEFT meter. Additionally, the RUDE SOLO LED flashes obnoxiously to remind you that“you’re in solo.”

The SOLO PFL signal is tapped before thechannel’s MUTE and Fader controls. Itdoes, however, follow GAIN , LOW CUT

, and EQ settings, making it the perfecttool for quick inspections of individual or mul-tiple channels. The channel’s PAN , MUTE

and Fader settings have no effect onthe SOLO signal. See RUDE SOLO formore information.

WARNING: Pre-faderSOLO taps the channelsignal before the fader .If you have a channel’sfader set well below “U”

(unity gain), SOLO won’t know that and willsend a unity gain signal to the PHONES output. That may result in a startling levelboost in your headphones.

15

MASTER SECTION FEATURES

CLIP

0dB=0dBu

LEFT RIGHT

ZEROLEVEL

SET

48v

dB

30

20

10

OO

4050

5

5

U

60

10

POWER STATUS

RUDESOLO

22

10

7

4

2

0

2

4

7

10

20

30

STEREO

MAIN MIXSTEREO

MAIN MIX

We hope you’ve understood, if not memo-rized, the CHANNEL STRIP FEATURES youjust read. If you’re still confused, please lookthem over again before you tackle this section.Don’t worry, it’s easy to swallow as long as youtake it a bite at a time.

MAIN MIX FADERAs the name implies, this stereo fader con-

trols the levels of signals sent to the mainoutputs: XLR and TRS MAIN OUT . TheTAPE OUTPUT RCA jacks also receive themain mix, but before the MAIN MIX Fader.

Signals feeding the MAIN MIX Fader, afterpassing through the STEREO GRAPHIC EQ ,include: SUB ASSIGN , MAIN INSERT ,STEREO EFX RETURN 1 and 2 (includingthe EMAC EFFECTS PROCESSOR ), andTAPE INPUT . All assigned SUB Faders and EFX RETURNs that are not turnedfully down will appear in the MAIN MIX.

The fader, set fully up, provides 10 dB of gain.A “U” unity gain point is just below that. Whenset fully down, the main mix is effectivelymuted. This is the fader to pull down at the endof the song when you want The Great Fade-Out.

METERSThe CFX mixer’s peak metering system is

made up of two columns of twelve LEDs each,with thresholds ranging from –30 dB up to“CLIP” (+22 dBu at the TRS MAIN OUT ,+28 dBu at the XLR MAIN OUT). The metersdisplay the main mix, post MAIN MIX Fader

, unless a SOLO PFL switch is engaged.When a SOLO PFL switch is engaged,

the meters will instead display the solo infor-mation, at unity gain (pre channel fader ).Why, you ask? The meters, being a tool for theengineer, must display what the engineer is lis-tening to via the PHONES output.

You can get a good mix with the meter’speaks flashing anywhere between –20 and +10dB. Most amplifiers clip at about +10 dB, andsome recorders aren’t so forgiving either. Forbest real-world results, try to keep your peaksbetween “0” and “+7.”

You may already be familiarwith “+4” (+4 dBu=1.23V)and “–10” (–10 dBV=0.32V)operating levels. Basically,what determines the operat-

ing level is the relative 0 dB VU (or 0VU)chosen for the meters.

A “+4” mixer, with a +4 dBu signal pouringout the back, will actually display 0 dB on itsmeters. A “–10” mixer, with a –10 dBV signaltrickling out, will also display 0 dB. So ... whenis 0 dB actually 0 dB? Right now!

At the risk of creating another standard,Mackie’s compact mixers address the need ofboth crowds by calling things as they are: 0 dBu(0.775V) at the output shows as 0 dB VU onthe meters. What could be easier? (By the way,the most wonderful thing about standards isthat there are so many to choose from.)

RUDE SOLOThis infamous flashing LED (Light Emitting

Diode) serves two purposes —- to remind youthat at least one SOLO PFL switch is en-gaged, and to let you know that you’re mixingon a Mackie.

Engaging a SOLO PFL switch affectsthese features: PHONES and Meters .No other outputs are affected in any way.

Although the “SET THE LEVELS” section of“QUICK START” (page 5) will get your level-setting tasks accomplished, using the meters

in PFL SOLO mode lets you really tune in.Instead of one flickering LED, you can makeuse of the 12-segment VU display in themeters. How? Just engage a SOLO PFL switch and watch the meters.

WARNING: SOLO is pre-fader and taps the channelsignal before the fader .If you have a channel’sfader set well below “U”

(unity gain), SOLO won’t know that and willsend a unity gain signal to the PHONES output. That may result in a startling levelboost in your headphones.

STEREO GRAPHIC EQThis equalizer, used to shape the frequency

spectrum of the main mix, is the last thing inthe chain prior to the MAIN MIX Fader and MAIN OUT XLR and TRS jacks.

Although there is no actual bypass switchfor the STEREO GRAPHIC EQ, by setting allthe sliders to zero (center) you’ll effectivelyremove it from the signal path.

How to find and reduce feedback:1. Set the GRAPHIC EQ sliders to zero (center).2. Set the GAIN levels, using the ZERO

LEVEL or SOLO PFL .

16

15–

15+

5

10

0

5

10

–15

+15

5

10

0

5

10

STEREO GRAPHIC EQ

1K50025063 125 16K2K 4K 8K

12 CHANNEL COMPACT INTEGRATED LIVE SOUND MIXER

RIGHT

LEFTdB

30

20

10

OO

4050

5

5

U

60

10

SUB 1ASSIGN

C

ZELEV

SE

TAPE LEVEL

OOMAXPHONES LEVEL

UTILITY OUT LEVEL

BREAK SWITCH(MUTES ALL CHANNELS)

U

+20OO

U

+20OO

U

+10OO

EFX 1 RETURN

jacks and engage the BREAK SWITCH. In-stantly, the entire main mix is switched off andthe intermission entertainment is switched on.

Even if you just want silence during thebreaks, this switch can act as a “Master Mute”switch, simply by plugging nothing into TAPEINPUT .

PHONES LEVELAfter the MAIN MIX Fader , the mix is

sent through this knob, allowing you to setheadphone levels as desired without disturbingthe main mix level.

When a channel’s SOLO PFL is engaged,the main mix will be replaced by the solo sig-nal, allowing the engineer to audition channelswithout disturbing the main mix.

The stereo PHONES jack can drive anystandard headphones to very loud levels.Walkperson-type phones can also be used withan appropriate adapter.

Note: Please see the “Safety Instructions”on page 2 for information on hearing protection.

UTILITY OUT LEVELAfter the MAIN MIX Fader , the mix is

sent through this knob, allowing you to set thelevels at the UTILITY OUT as desired with-out disturbing the main mix level.

SUB FADERSThe typical exit for channel signals is through

one or more sub mixes. The sub mix signal isfirst controlled by this fader, which provides 10dB of gain fully up, unity gain at the “U” mark,and is effectively muted fully down.

From here, the signal goes to two very differ-ent locations: SUB OUT sends the sub mixdirectly out of the mixer via its TRS jacks; andSUB ASSIGN sends it to the MAIN MIXFader .

LEFT/RIGHT SUB ASSIGNAs discussed in ASSIGN , the only way to

get channel outputs to the main mix is via thesub mixes, and this switch is the key.

Continuing the assumption made in ASSIGN, Subs 1 and 2 are the left-right stereo path

from the channels to SUB Faders 1 and 2,with SUB 1 carrying the left signal and SUB 2carrying the right. Engage SUB 1 ASSIGN LEFTand SUB 2 ASSIGN RIGHT, and you’re done.Take a look at the block diagram on page 22 —it’ll explain this and more, but in hieroglyphics.

3. Slowly turn up the MAIN MIX Fader until feedback just begins to occur. BECAREFUL! Feedback can occur quicklyand become very LOUD, very fast.

4. Cut the appropriate slider until feedbackstops.

Suggestions for better sound:• For better vocal sound, set the 125, 250,

and 16K sliders to +5.Note: Make sure the singer is within 3 to 6inches of the microphone. No amount ofEQ can save a wandering minstrel.

• For more presence, set the 4K and 8Ksliders to +5.

• To warm up the overall sound, set the 2Kslider to –5.

• REMEMBER, LESS IS BETTER.

TAPE LEVELYou can adjust the incoming level of your in-

termission entertainment, independent of themain mix level controls, via this feature. Here’show: Patch the stereo device into the TAPE IN-PUT . Put the device in play. Engage theBREAK SWITCH and set the TAPE LEVEL

knob as desired. Assuming the MAIN MIXFader is set, you should hear the device.

BREAK SWITCHNo, when we say BREAK SWITCH, we’re not

asking you to break the switch, we’re offeringyou a very handy feature. When it’s time for thetalent to take a break, the engineer usuallywants to stretch his legs. But walking awayfrom a live mixer in a crowded club can besomewhat unnerving — what if some goonstarts dinking around with the faders?

No problem. Just plug in your intermissionentertainment device to the TAPE INPUT

17

CL

ZERLEV

SE

TAPE LEVEL

OOMAXPHONES LEVEL

UTILITY OUT LEVEL

BREAK SWITCH(MUTES ALL CHANNELS)

U

+20OO

U

+20OO

U

+10OO

EFX 1 RETURN

1(EXT)

U

+15OO

U

+15OO

U

+15OO

1

2

AUX

EFX

MASTER SEND

WIDE BYPASS100 100

REVERBSDELAYS

CHORUS/FLANGE/PHASER

DAMPING

DEPTH

TIME

RATE

NORMAL NORMALEFX

SM. ROOMMD. PLATELG. PLATE

LG. HALL

GATEDREVERSE

CATHEDRAL

MD. HALL

SPRINGPHASER

DELAY 4CHORUS

DELAY 3

DELAY 1

FLANGE

DELAY 2

U

+15OO

U

+15OO

U

+15OO

U

+15OO

EFX 2SEND

TO MAIN MIXEFFECTS TO MONITORAUX 1 AUX 2

CLIP

DIGITAL STEREO EFFECTS PROCESSOR

EFX 2 (INT) RETURN MASTERS

AUX MASTER SENDAux send signals are derived by each

channel’s AUX knob, mixed together, thensent through this AUX MASTER SEND knob.Turned fully up, it provides 15 dB of additionalgain, the center “U” mark is unity gain, andfully down is off.

Typically, when the talent (or lack thereof)wants a louder monitor mix, this is the knob tocrank up — watch out for feedback!

EFX 1 MASTER SENDEffects send signals are derived by each

channel’s EFX 1 (EXT) knob, mixed to-gether, then sent through this EFX 1 MASTERSEND knob. Turned fully up, it provides 15 dBof additional gain, the center “U” mark is unitygain, and fully down is off.

Being that this controls only post-fadersends destined for outboard effects devices,you’ll typically set this knob near the “U” markand then leave it alone.

EFX 1 RETURNStereo signals come through the EFX 1

RETURN and continue on to the MAIN MIXFader . They contain the effects’ “wet”signals to be mixed together with the channels’“dry” original signals. Turned fully up, it pro-vides 15 dB of additional gain, the center “U”mark is unity gain, and fully down is off.

Being that this controls only the return sig-nals of external effects, with their levelsalready determined by the channels’ EFX 1(EXT) knob, you’ll typically set this knobnear the “U” mark and then leave it alone.

EMAC EFFECTSPROCESSOR

FOR THE IMPATIENT:Set EFX 2 SEND

and TO MAIN MIX atthe center “U” mark. As-suming you have yourbasic mix up and run-ning, turn up the EFX 2(INT) , per channel.This feeds in individualamounts of channel sig-nals to the EMAC inputs— you should be hearingthe effects as you do this.

Next, goof aroundwith the various param-eters: Preset Select ,TIME/RATE , DAMP-

ING/DEPTH and WIDE . When you findan effect you like, jot down the parameters, thengoof around some more.

To mute these effects, engage BYPASS (or your foot switch if connected to EFX FOOTSWITCH ). To send these effects to thestage monitor cues, turn up the EFFECTS TOMONITOR knobs.

FOR THE CURIOUS:EMAC™ stands for Extended Multiply and

Accumulate, which is a proprietary 32-bit digitalstereo processor developed by our Digital Engi-neering Group. It provides 16 preset digitaleffects algorithms for you to select. In additionto the presets, there are two parameter con-trols ( ) you can adjust to change thesound and make it unique for your particularapplication.

EFX 2 SENDThis controls the signal level being sent to

the input of the EMAC module (and to the EFXSEND 2 jack). Use the EFX 2 (INT) controls on the individual channels to adjustthe amount of each channel’s signal you wantto go to the EMAC. Leave EFX 2 SEND set atthe center “U” position. If you find that you’renot getting enough of the effect in the mainmix, make sure that the TO MAIN MIX control is turned up at least to unity (the cen-ter detent position). It’s okay to turn up theEFX 2 SEND some more if you need to. Justmake sure the ZERO LEVEL LED neverlights more than occasionally. Read on to findout why.

TO MAIN MIXStereo signals (from

STEREO EFX RETURN 2 and EMAC EFFECTS

PROCESSOR ) comethrough this TO MAINMIX knob and continueon to the MAIN MIXFader . They containthe effects’ “wet” signalsand are mixed togetherwith the channels’ “dry”original signals. Turnedfully up, it provides 15 dBof additional gain, thecenter “U” mark is unitygain, and fully down is off.

Being that this con-trols only the returnsignals of external and

18

WIDE BYPASS100 100

REVERBSDELAYS

CHORUS/FLANGE/PHASER

DAMPING

DEPTH

TIME

RATE

NORMAL NORMALEFX

SM. ROOMMD. PLATELG. PLATE

LG. HALL

GATEDREVERSE

CATHEDRAL

MD. HALL

SPRINGPHASER

DELAY 4CHORUS

DELAY 3

DELAY 1

FLANGE

DELAY 2

U

+15OO

U

+15OO

U

+15OO

U

+15OO

EFX 2SEND

TO MAIN MIXEFFECTS TO MONITORAUX 1 AUX 2

CLIP

DIGITAL STEREO EFFECTS PROCESSOR

EFX 2 (INT) RETURN MASTERS

EMAC effects, with their levels already deter-mined by the channels’ EFX 2 (EXT) knob, you’lltypically set this knob near the “U” mark andthen leave it alone.

EFFECTS TO MONITORThis works just like the channel AUX

knobs, but here, the source signal is the EFX 2RETURN and the EMAC output. Typically, thisknob is used to add effects to the stage monitors.

Turned fully up, it provides 15 dB of addi-tional gain, the center “U” mark is unity gain,and fully down is off.

PRESET SELECTRotate this detented switch to select the

preset effect you want to use.

Preset Effects DescriptionsReverbs

The reverbs are designed to provide a widevariety of reverb sounds for vocal and instru-ment applications. In the following description,tail refers to the reflections that follow the initialsound event, also referred to as decay range.Pre-delay is the amount of time between theinitial sound event and the first reflection.

TIME/RATE controls the length of thetail, with the shortest tail at the 0 position andthe longest tail at 10. DAMPING/DEPTH controls the damping, with the darkest tone at0 and the brightest tone at 10. The WIDE switch is very effective at increasing the stereoimage of the reverb effect.

REVERSE: Standard reverse reverb, simulat-ing a tail-first effectincreasing to the originalnote. Decay range is ad-justable from 35 ms to515 ms. No pre-delay.

GATED: Standardgated reverb, where thereverb tail is cut offsharply after the presetdecay length. Decayrange is adjustable from35 ms to 515 ms. No pre-delay.

CATHEDRAL: Dense,smooth reverb with verylong tail, long pre-delay,and late reflections. Tailsare very warm with someadditional high-endreflections imitating thestone walls of a cathedral.

A very dramatic effect that works well with windinstruments such as flute, slow finger picking onacoustic guitar, and quiet vocal group harmonyand choirs. Also works well with keyboards anddrums using short decay. Decay range is adjust-able from 2 seconds to 10 seconds. Pre-delay setat 75 ms.

LG. HALL: Dense, smooth reverb with longtail, long pre-delay, and some early reflections.Tails are warm with more apparent high end.Works well with vocals and electric and acousticguitar. Decay range is adjustable from 1 secondto 5 seconds. Pre-delay set at 75 ms.

MD. HALL: Dense, smooth reverb with nor-mal tail, normal pre-delay, and increased earlyreflections. Tails are warm with more apparenthigh end. Works well with vocals and electricand acoustic guitar. Decay range is adjustablefrom 750 ms to 2.5 seconds. Pre-delay set at 65ms.

LG. PLATE: Good early reflections and nopre-delay. Tails are normal and warm withstrong high end for increased presence. Perfectfor vocals and snare. Decay range is adjustablefrom 1 second to 5 seconds. No pre-delay.

MD. PLATE: Good early reflections and nopre-delay. Tails are short and warm with stronghigh end for increased presence. Perfect fortight vocals and snare. Decay range is adjust-able from 750 ms to 2.5 seconds. No pre-delay.

SM. ROOM: Reverb featuring very fast andscattered early reflections with a short pre-delay.Tails are very short and warm with normal high-end imitating absorbent wall materials andaudience. Good for tight vocal effects. Decayrange is adjustable from 250 ms to 1 second.Pre-delay set at 30 ms.

SPRING: Mimics thevintage 60’s-style wetspring reverb effect. Tailsare normal with stronghigh end and a slight wa-ver imitating the slowflutter of the mechanicalspring system. Very goodwith acoustic guitar. De-cay range is adjustablefrom 1 second to 5 sec-onds. No pre-delay.

Delays

There are four delaysavailable with one, two,three, and four repeats.TIME/RATE controlsthe time between repeats,with the fastest repeatsat the 0 position and the

19

slowest repeats at 10. DAMPING/DEPTH controls the damping, with the darkest tone at0 and the brightest tone at 10. Since the delayeffect is not stereo, it is not affected by theWIDE switch.

DELAY 1: One repeat. Works best forslapback delay used in country and swing gui-tar, and for rockabilly and some country vocals.Delay range is adjustable from 5 ms to 524 ms.

DELAY 2: Two repeats. Provides a fuller, moredramatic effect for rock and gospel vocals, acous-tic guitar, and wind instruments such as flute.Especially effective for some finger-picking styles.Delay range is adjustable from 5 ms to 524 ms.

DELAY 3: Three repeats. An excellent delayfor slow, bluesy vocals and melodic flute music.This delay usually works best when the chan-nel EFX send is set at less than halfway. Delayrange is adjustable from 5 ms to 524 ms.

DELAY 4: Four repeats. This is for very dra-matic delay effects, particularly for enhancinglong vocal notes and dramatic instrumentalnote-chopping effects. Be sure to set the chan-nel EFX send at about halfway. Delay range isadjustable from 5 ms to 524 ms.

Modulation Effects

These include Chorus, Flange, and Phaser,and are generally used for enhancement ofinstrumental music. However, Chorus adds adramatic effect to vocals as well. The WIDE

switch is very effective at dramaticallyincreasing the strength and thickness of amodulation effect. For example, using WIDE onChorus mimics a multi-voiced chorus effect.

TIME/RATE controls the effect Rate,which is the speed of the sweeping effect. Fullycounter-clockwise produces the slowest sweepsand fully clockwise produces the fastest.DAMPING/DEPTH controls the effectdepth, which is the strength of the sweepingeffect. Fully counter-clockwise produces thelightest sweeping effect and fully clockwiseproduces the thickest.

CHORUS: Provides a soft, ethereal sweepingeffect. Perfect for enhancement of electric andacoustic guitar and bass. Also adds a dramaticeffect to vocals, particularly group harmoniesand choirs. The channel’s EFX 2 (INT) should be set halfway or higher. Rate is adjust-able from 0.5 Hz to 30 Hz. Depth is adjustablefrom 0% to 100%.

FLANGE: Creates a strong sweeping effect,particularly effective on rock electric guitar,lead and rhythm. The channel’s EFX 2 (INT) should be set halfway or higher. Rate is adjust-

able from 0.5 Hz to 20 Hz. Depth is adjustablefrom 0% to 100%.

PHASER: This effect is perfect for enhanc-ing strummed acoustic guitar or electric guitarpower chords. The PHASER effectively dupli-cates the popular 70’s phase shift effect used forguitar. Rate is adjustable from 0.5 Hz to 35 Hz.Depth is adjustable from 50% to 100%.

TIME/RATEIf you have a reverb effect selected, this

control adjusts how long the reverberationlasts, with 0 being a short reverb time and 10being the longest.

If you have a delay effect selected, this adjuststhe amount of time between the original signaland the delayed signal, with 0 being a short delaytime and 10 being the longest delay time.

If you have a chorus, flange, or phaser effectselected, this control adjusts the rate or speedof the modulation of the effect.

DAMPING/DEPTHIf you have a reverb or delay effect selected,

this control adjusts how fast the higher fre-quencies roll off in the reverberation or delay,with 0 having little roll off and 10 having themost roll off.

If you have a chorus, flange, or phaser effectselected, this control adjusts the depth of themodulation of the effect.

WIDEDepending on the effect selected, this

switch adds more width or depth to the effect.Note that it doesn’t work with the DELAY andPHASER effects because they are monophonic.

BYPASSPushing in this button causes the adjacent

EFX BYPASS indicator to light and mutes theeffects’ output signal. It affects only the internalEMAC effects, not any external effects processoryou may have connected to the STEREO EFXRETURN 2 jack.

CLIPThis indicates when the EMAC is 6 dB below

clipping. Just like the channels’ ZERO LEVEL LED, this LED should only light occasion-

ally. If it blinks frequently, you should turndown EFX 2 SEND a little.

20

APPENDIX A: Service InfoBad Output• Are the SUB ASSIGN switches set

correctly?• Are the MAIN MIX Fader and SUB

Faders turned up?• If it’s one of the MAIN OUTs , try

unplugging all the others. For example, ifit’s a TRS MAIN OUT, unplug the associ-ated XLR outputs. If the problem goesaway, it’s not the mixer.

• If it’s a stereo pair, try switching themaround. For example, if a left output ispresumed dead, switch the left and rightcords, at the mixer end. If the left speakeris still dead, it’s not the mixer.

Noise• Turn the channel Faders , EFX 1

RETURN and EFX 2 SEND down,one by one. If the sound disappears, it’seither that channel or whatever is pluggedinto it, so unplug whatever that is. If thenoise disappears, it’s from your whatever.

Power• Our favorite question: Is the POWER

switch on?

Warranty ServiceDetails concerning Warranty Service are

spelled out page 23.If you think your CFX MKII mixer has a

problem, please do everything you can to con-firm it before calling for service. Doing somight save you from the deprivation of yourmixer and the associated suffering.

Of all Mackie products returned for service(which is hardly any at all), roughly 50% arecoded “CND” — Could Not Duplicate, whichusually means the problem lay somewhereother than the mixer. These may sound obviousto you, but there’s some things you can check.Read on.

Troubleshooting

Bad Channel• Is the ASSIGN switch set correctly?• Is the channel Fader turned up?• On mono channels, try unplugging any

INSERT devices.• Try the same source signal in another

channel, set up exactly like the suspectchannel.

GENERAL PRECAUTIONS AND CONSIDERATIONSWhen setting up for a show, oftentimes you

are plugging into an AC power distribution sys-tem you know nothing about. You may even befaced with 2-wire outlets that are missing thethird safety ground pin. It’s a good idea to havea three-wire AC outlet tester in your toolbox soyou can check the outlets yourself to makesure they are wired correctly. These testers willtell you if the polarity of the hot and neutralwires is reversed and if the safety ground is dis-connected. Don’t use an outlet if it is wiredimproperly! This is to protect yourself as wellas your equipment.

If you find that you must plug into a two-wire outlet, you will need to use a two-wire tothree-wire adapter (cheater plug). These comewith a metal tab that you put underneath thecenter screw that holds the AC outlet faceplatein place. This center screw must be grounded.You can check it by connecting the adapter tothe outlet and then plugging in your handy-dandy AC outlet tester.

NEVER bypass the ACplug’s ground pin. This isdangerous!

AC Power DistributionThe majority of AC outlets encountered in

homes and clubs (in the U.S.) are served by a240VAC center-tapped service entrance trans-former. This provides two phases of AC poweron either side of the center tap, at 120V each.

If lighting is used in a show, it is preferableto power the lights from one leg of the service,and power the audio equipment from the otherleg. This will help minimize noise from thelights coupling into the audio (particularly ifSCRs, or light-dimmer switches, are used).

In order to minimize ground loops, the safetygrounds for all the outlets should be connectedto a common (“star”) grounding point, and thedistance between the outlets and the commongrounding point should be as short as possible.

21

RepairService for the CFX MKII Series mixers is

available at a factory-authorized service center.Service for Mackie mixers living outside theUnited States can be obtained through localdealers or distributors.

If your mixer needs service, follow these in-structions:1. Review the preceding troubleshooting

suggestions. Please.2. Call Tech Support at 1-800-898-3211, 8am

to 5pm PST, to explain the problem indetail. If it appears that the mixer needsrepair, you will be given a Service RequestNumber. Have your mixer’s serial numberready. You must have an Service RequestNumber before you can obtain service at afactory-authorized service center.

3. Keep this owner’s manual and the detach-able linecord. We don’t need them to repairthe mixer.

4. Pack the mixer in its original package,including endcaps and box. This is VERYIMPORTANT. When you call for the ServiceRequest Number, please let Tech Support

know if you need new packaging. Mackie isnot responsible for any damage thatoccurs due to non-factory packaging.

5. Include a legible note stating your name,shipping address (no P.O. boxes), daytimephone number, Service Request Number,and a detailed description of the problem,including how we can duplicate it.

6. Write the Service Request Number in BIGPRINT on top of the box. Product shippedwithout the Service Request Number willbe refused.

7. Tech Support will tell you where to ship themixer for repair. We suggest insurance forall forms of cartage.

8. We’ll try to fix the mixer within fivebusiness days. Once it is repaired, we’ll shipit back the same way in which it wasreceived. This paragraph does not neces-sarily apply to non-warranty service.Note: You must have a sales receipt froman Authorized Mackie Dealer to qualify fora warranty repair.

APPENDIX B: Technical InfoSpecificationsCFX12, CFX16, CFX20 MKII

Mixer Section

Frequency ResponseMic Input to any Output (Gain at 0 dB):

+0, –1 dB, 32 Hz to 20 kHz

DistortionTHD and SMPTE IMD; 20 Hz to 20 kHz

Mic Input to Main Output:< 0.05% @ +4 dBu output

Noise20 Hz to 20 kHz BW (150Ω source impedance)

Equivalent Input Noise (EIN):–127 dBu

Residual Output Noise:Main, Monitor, and Effects outputsChannel & Master levels off–95 dBu

Common Mode Rejection Ratio (CMRR)60 dB @ 1 kHz, Gain @ 0 dB

CrosstalkAdjacent Inputs or Input to Output:

–90 dB @ 1 kHzFader Off

–90 dB @ 1 kHzMute Switch and Break Switch Mute

–80 dB @ 1 kHz

Input Gain Control RangeMono Channels

Mic In: +5 dB to +50 dBLine In: –15 to +30 dB

Stereo ChannelsLine In: –20 to +20 dB

Phantom Power+48V DC

EqualizationLow Cut: 100Hz, –18 dB/octaveMono Channel EQ:

High ±15 dB @ 12 kHzMid ±15 dB @ 100 Hz to 8 kHzLow ±15 dB @ 80 Hz

Stereo Channel EQ:High ±15 dB @ 12 kHzHigh Mid ±15 dB @ 3 kHzLow Mid ±15 dB @ 400 HzLow ±15 dB @ 80 Hz

Graphic EQ (9 bands):Q = 1.414, ISO octave centers±15 dB @ 63, 125, 250, 500, 1k, 2k, 4k, 8k, 16k Hz

Mixer Rated OutputMain, Sub, Aux, & Efx: +4 dBuMaximum Rated Output: +20 dBu

Maximum Input LevelsMic Input: –28 dBu, Gain @ +50 dB

+18 dBu, Gain @ +6 dBLine Input: –8 dBu, Gain @ +30 dB

+38 dBu, Gain @ –15 dBInsert Input, Stereo Line Input, Tape Input, andEffects Return: +20 dBu

22

MAIN OUTLEFT

MAIN OUTRIGHT

STEREO EFXRETURN 1 RIGHT

STEREO EFXRETURN 1 LEFT

SOLO CONTROL(ACTIVE LOW)

RUDE SOLOLIGHT

SOLOOFF

SOLOON

UTILITY OUT LEFT

EFX SEND 2

EFX SEND 2 EFXSELECT

STEREO EFXRETURN 2RIGHT

STEREO EFXRETURN 2 LEFT

EFX TO MAIN MIX

AUX SEND 1

AUX SEND 2

EFX TO AUX 1

EFX TO AUX 2

TO LEFT MAIN

TO RIGHT MAIN

PFLSIGNAL

TO PHONES

PFL

UTILITYLEVEL

PHONES LEVEL

PHONES

UTILITY OUT RIGHT

PFLSIGNALTO LEFTMETER

22107420247102030

100 HzHPF

MID FREQ HI

80 12K

LO1-2

3-4

AUX 1

AUX 2

EFX 1

EFX 2

PRE-P0ST

PAN

FADER

GAIN

LINE INSTEREOCHANNELS

MIC/LINE INMONO CHANNELS

LOW CUT

INSERTLEVELSET

SOLO

3-4

MID HI

80 800 12K

LO MID

3K

MID HI

80 800 12K

LO MID

3K

AUX 1

AUX 2

EFX 1

EFX 2

PRE/POST

PANMAINGAIN

LEFT

RIGHT

SOLO

1-2MUTE

EFX RETURN 1

SUBWOOFEROUT

12

3

63 125 250500 1K 2K 4K 8K 16K

TAPE OUTRIGHT

BREAK

MAINLEVEL

MAIN INSERT

LEFTASSIGN

RIGHTASSIGN

SUB 1 OUT

63 125 250500 1K 2K 4K 8K 16K

TAPE OUTLEFT

BREAK

TAPELEVEL

MAINLEVEL

MAIN INSERT

TAPE INLEFT

TAPE INRIGHT

EFX

2

EFX

1

SOLO

SOLO

CON

TRO

L

AUX

2

AUX

1

SUB

1

SUB

2

SUB

3

SUB

4

LEFT

MA

IN

RIG

HT

MA

IN

EFX SEND 1

AUX SEND 2

AUX SEND 1

EFX SEND 1

FROM EFXTO MAIN MIX

75 HzLPF

MUTE

PHANTOM POWER

+48 VDC

MACKIECFX MKII SERIESBLOCK DIAGRAM(#122104CJM/DF)

+5VDC

2

3

1

12

3

12

3

DAMPING/DEPTH

TIME/RATE

EFX WIDE

EFX BYPASS

EFX BYPASS

EFXFOOTSWITCH

+5VDC

GLOBAL PHANTOM POWER

WOODINVILLEEXIT

BOTHELL MONROE

EMACDSP

EFX LEVEL SET

L

R

SOLO CONTROL(ACTIVE LOW)

SOLOOFF

SOLOON

SUB 2 OUT

LEFTASSIGN

RIGHTASSIGN

LEFTASSIGN

RIGHTASSIGN

LEFTASSIGN

RIGHTASSIGN

SUB 4 OUT

SUB 3 OUT

Maximum Voltage GainMic Input to Insert Output: 50 dB Tape Output: 66 dB Sub Output: 66 dB Main Output: 76 dB Aux Send: 71 dBLine Input to Insert Output: 30 dB Tape Output: 46 dB Sub Output: 46 dB Main Output: 56 dB Aux Send: 51 dBStereo Line Input to Tape Output: 40 dB Sub Output: 40 dB Main Output: 50 dB Aux Send: 45 dBTape Input to Main Output: 30 dBEffects Return to Main Output: 30 dB

Input ImpedanceMic Input: 3kΩ, balancedLine Input: 40kΩ, balancedInsert Input, Stereo Line Input, Tape Input, andEffects Returns: 10kΩ, unbalanced

Output ImpedanceMain Output, Insert Output, Tape Output, SubOutput, and Effects Sends: 150Ω

Digital EffectsResolution: 16-bit, 2-channelNumber of Presets: 16

Channel Level Set LED (Sensitivity)0 dBu (normal operating level)

VU MetersMain L/R 12 segments: Clip, +10, +7, +4, +2, 0, –2, –4, –7, –10, –20, –30

DisclaimerSince we are always striving to make our productsbetter by incorporating new and improved materi-als, components, and manufacturing methods, wereserve the right to change these specifications atany time without notice.

Block DiagramCFX MKII Series

4.6 in/117 mm15.7 in/400 mm

16.0 in/406 mm

5.0 in/127 mm

2.1 in/53 mm

16.2

in/4

12 m

m

18.4

in/4

67 m

m22

.9 in

/58

2 mm

26.8

in/6

81 m

m

CFX20WEIGHT 24.3 lb/11.0 kg

CFX16WEIGHT 21.0 lb/9.5 kg

CFX12WEIGHT 17.8 lb/8.1 kg

23

A. LOUD Technologies Inc. warrants all materials,workmanship and proper operation of this productfor a period of three years from the original date ofpurchase. If any defects are found in the materialsor workmanship or if the product fails to functionproperly during the applicable warranty period,LOUD Technologies, at its option, will repair orreplace the product. This warranty applies only toequipment sold and delivered within the U.S. byLOUD Technologies or its authorized dealers.B. Failure to register online or return the productregistration card will not void the three-year warranty.C. Service and repairs of Mackie products are to beperformed only at a factory-authorized servicefacility (see D below). Unauthorized service, repairs,or modification will void this warranty. To obtainrepairs under warranty, you must have a copy ofyour sales receipt from the authorized Mackiedealer where you purchased the product. It isnecessary to establish purchase date and determinewhether your Mackie product is within thewarranty period.D. To obtain factory-authorized service:

1. Call Mackie Technical Support at 800/898-3211, 7 AM to 5 PM Monday through Friday(Pacific Time) to get a Service Request Number.Products returned without a Service RequestNumber will be refused.

2. Pack the product in its original shippingcarton. Also include a note explaining exactlyhow to duplicate the problem, a copy of thesales receipt with price and date showing,and your return street address (no P.O. boxesor route numbers, please!). If we cannotduplicate the problem or establish thestarting date of your Limited Warranty, wemay, at our option, charge for service time.3. Ship the product in its original shippingcarton, freight prepaid to the authorizedservice center. The address of your closestauthorized service center will be given to youby Technical Support.

IMPORTANT: Make sure that the ServiceRequest Number is plainly written on theshipping carton.

E. LOUD Technologies reserves the right to inspectany products that may be the subject of anywarranty claims before repair or replacement iscarried out. LOUD Technologies may, at our option,require proof of the original date of purchase in theform of a dated copy of the original dealer’s invoiceor sales receipt. Final determination of warrantycoverage lies solely with LOUD Technologies.

F. Any products returned to one of the LOUDTechnologies factory-authorized service centers anddeemed eligible for repair or replacement under theterms of this warranty will be repaired or replacedwithin thirty days of receipt. Products returned toLOUD Technologies that do not meet the terms ofthis Warranty will not be repaired unless payment isreceived for labor, materials, return freight, andinsurance. Products repaired under warranty willbe returned freight prepaid by LOUD Technologiesto any location within the boundaries of the USA.G. LOUD Technologies warrants all repairsperformed for 90 days or for the remainer of thewarranty period. This warranty does not extend todamage resulting from improper installation,misuse, neglect or abuse, or to exterior appearance.This warranty is recognized only if the inspectionseals and serial number on the unit have not beendefaced or removed.H. LOUD Technologies assumes no responsibilityfor the quality or timeliness of repairs performed byan authorized service center.I. This warranty is extended to the originalpurchaser and to anyone who may subsequentlypurchase this product within the applicablewarranty period. A copy of the original sales receiptis required to obtain warranty repairs.H. This is your sole warranty. LOUD Technologiesdoes not authorize any third party, including anydealer or sales representative, to assume anyliability on behalf of LOUD Technologies or to makeany warranty for LOUD Technologies Inc.I. THE WARRANTY GIVEN ON THIS PAGE IS THESOLE WARRANTY GIVEN BY LOUD TECHNOLO-GIES AND IS IN LIEU OF ALL OTHERWARRANTIES, EXPRESS AND IMPLIED, INCLUD-ING THE WARRANTIES OF MERCHANTABILITYAND FITNESS FOR A PARTICULAR PURPOSE. THEWARRANTY GIVEN ON THIS PAGE SHALL BESTRICTLY LIMITED IN DURATION TO THREEYEARS FROM THE DATE OF ORIGINAL PUR-CHASE FROM AN AUTHORIZED MACKIEDEALER. UPON EXPIRATION OF THE APPLI-CABLE WARRANTY PERIOD, LOUDTECHNOLOGIES INC. SHALL HAVE NO FURTHERWARRANTY OBLIGATION OF ANY KIND. LOUDTECHNOLOGIES INC. SHALL NOT BE LIABLEFOR ANY INCIDENTAL, SPECIAL, OR CONSE-QUENTIAL DAMAGES THAT MAY RESULT FROMANY DEFECT IN THE MACKIE PRODUCT OR ANYWARRANTY CLAIM. Some states do not allowexclusion or limitation of incidental, special, orconsequential damages or a limitation on how longwarranties last, so some of the above limitationsand exclusions may not apply to you. This warrantyprovides specific legal rights and you may haveother rights which vary from state to state.

Please keep your sales receipt in a safe place.

CFX MKII SERIES LIMITED WARRANTY

Contributors and ColophonManual composed by Jeff Gilbert, the original 10-year

Mackoid (not counting Greg, of course). It was created in just 3hours, using a mascara pencil applied to cocktail napkins in theback booth of a diner in Bothell WA. He then borrowed snippetsof text found lying on the floor of Mackie’s Engineering and Ad-vertising departments and pasted them in, using cat saliva. Itwas really quite disgusting, so he turned it all over to DaveFranzwa, a REAL technical writer, to gussy it up.

Additional input provided by Paul Larson, Tech Supportguru, Rick Bos, CFX Series Product Manager (and tall, coolguy), and CJ Murray, project engineer. Proofreading providedby honorary Mackoid Linn Compton.

“Mackie.,” the “Running Man” figure, “CFX,” and “EMAC” aretrademarks or registered trademarks of LOUD Technologies Inc.

All other brand names mentioned are trademarks or regis-tered trademarks of their respective holders, and are herebyacknowledged.

©1999-2004 LOUD Technologies Inc. All Rights Reserved.

16220 Wood-Red Road NE • Woodinville, WA 98072 • USA

US and Canada: 800.898.3211

Europe, Asia, Central and South America: 425.487.4333

Middle East and Africa: 31.20.654.4000

Fax: 425.487.4337 • www.mackie.com

E-mail: sales@mackie.com