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EQU MKII SERIES - the EQU MKII series Graphic Equalizers you have acquired extremely musical and flexible Graphic ... EQU131VU-MKII-Graphic Mono 31-Band Equalizer/VU Meter 1

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  • User's Manual

    EQU MKII SERIES

    www.altoproaudio.com

    Version 1.2 NOV. 2007

    LTOR

    English

    15/31 BANDS GRAPHIC EQUALIZER

  • CAUTIONRISK OF ELECTRIC SHOCK

    DO NOT OPEN

    IMPORTANT SAFETY INSTRUCTION

    TO REDUCE THE RISK OF ELECTRIC SHOCK

    PLEASE DO NOT REMOVE THE COVER OR

    THE BACK PANEL OF THIS EQUIPMENT.

    THERE ARE NO PARTS NEEDED BY USER

    INSIDE THE EQUIPMENT. FOR SERVICE,

    PLEASE CONTACT QUALIFIED SERVICE

    CENTERS.

    WARNINGTo reduce the risk of electric shockand fire, do not expose this equipmentto moisture or rain.

    1.

    2.

    3.

    4.

    5.

    6.

    7.

    8.

    9.

    10.

    Dispose of this product shouldnot be placed in municipal wasteand should be separate collection.

    11.

    12.

    Move this Equipment only with a cart,stand, tripod, or bracket,specified by themanufacturer, orsold with theEquipment. Whena cart is used, usecaution whenmoving the cart /equipmentcombination toavoid possibleinjury from tip-over.

    Permanent hearing loss may be caused byexposure to \ extremely high noise levels.The US. Government's Occupational Safetyand Health Administration (OSHA) hasspecified the permissible exposure to noiselevel.These are shown in the following chart:

    According to OSHA, an exposure to high SPL inexcess of these limits may result in the loss ofheat. To avoid the potential damage of heat, it isrecommended that Personnel exposed toequipment capable of generating high SPL usehearing protection while such equipment isunder operation.

    This symbol, wherever used, alerts you to thepresence of un-insulated and dangerous voltages

    within the product enclosure. These are voltages thatmay be sufficient to constitute the risk of electricshock or death.

    This symbol, wherever used, alerts you toimportant operating and maintenance instructions.

    Please read.

    Protective Ground TerminalAC mains (Alternating Current)Hazardous Live Terminal

    ON: Denotes the product is turned on.OFF: Denotes the product is turned off.

    The apparatus shall be connected to a mainssocket outlet with a protective earthingconnection.

    The mains plug or an appliance coupler is usedas the disconnect device, the disconnect deviceshall remain readily operable.

    CAUTIONDescribes precautions that should be observed toprevent damage to the product.

    Read this Manual carefully before operation.

    Keep this Manual in a safe place.

    Be aware of all warnings reportedwith this symbol.

    Keep this Equipment away from water andmoisture.

    Clean it only with dry cloth. Do not usesolvent or other chemicals.

    Do not damp or cover any cooling opening.Install the equipment only in accordance withthe Manufacturer's instructions.

    Power Cords are designed for your safety. Donot remove Ground connections! If the plugdoes not fit your AC outlet, seek advice froma qualified electrician. Protect the powercord and plug from any physical stress toavoid risk of electric shock. Do not placeheavy objects on the power cord. This couldcause electric shock or fire.

    Unplug this equipment when unused for longperiods of time or during a storm.

    Refer all service to qualified service personnelonly. Do not perform any servicing other thanthose instructions contained within theUser's Manual.

    To prevent fire and damage to the product,use only the recommended fuse type asindicated in this manual. Do not short-circuitthe fuse holder. Before replacing the fuse,make sure that the product is OFF anddisconnected from the AC outlet.

    HOURS X DAY EXAMPLE

    864321,510,50,25 or less

    SPL

    90929597100102105110115

    Small gigtrainSubway trainHigh level desktop monitorsClassic music concert

    Rock concert

  • IN THIS MANUAL:

    1. INTRODUCTION.........................................................................1

    2. FEATURES................................................................................1

    3. CONTROL ELEMENTS................................................................2

    4. APPLICATION............................................................................7

    5. INSTALLATION & CONNECTION...................................................9

    6. TECHNICAL SPECIFICATIONS

    7. WARRANTY.............................................................................13

    .....................................................12

    1. INTRODUCTION

    Thank you for your purchasing the EQU MKII series Graphic Equalizers.

    With the EQU MKII series Graphic Equalizers you have acquired extremely

    musical and flexible Graphic Equalizer. The high-end EQU MKII series are

    based on many years of experience and are designed to provide a permanent

    precise equalization to musician, performer, and studio engineer. They can be

    used wherever is requested to modify the frequency "contour" of a sound and

    can offer a solution to many common sound problems and allows the user to

    use the creativity to obtain nice results in terms of sound characterization.

    EQU Series Graphic Equalizers include the following seven models:

    EQU131-MKII V2-Graphic Mono 31-Band Equalizer

    EQU215-MKII V2-Graphic Stereo 15-Band Equalizer

    EQU215TWIN-MKII-Graphic Stereo 15-Band Equalizer

    EQU131VU-MKII-Graphic Mono 31-Band Equalizer/VU Meter 1

    EQU231VU-MKII V2-Graphic Stereo 31-Band Equalizer/VU Meter 2

    EQU231-MKII V2-Graphic Stereo 31-Band Equalizer

    EQU231TWIN-MKII V2-Graphic Stereo 31-Band Equalizer

    1

    2. FEATURES

    Constant Q circuitry with a 3% center frequency accuracy

    Control range 6 dB/ 12 dB selectable

    Active balanced and unbalanced input and output connectors

    Variable input level control

    Signal clip pilot

    Ground "LIFT" switch to disconnect signal ground from chassis ground

    Power off automatic bypass function

    Line voltage selectable

    Robust and compact design

    Mountable in a 19" rack unit(1U)

    Manufactured Under QS9000, VDA6.1 certified management system

    Enjoy your EQU MKII and make sure to read this Manual carefully before

    operation.

  • Dual 15 Band Graphic Equalizer Channel One

    63 250 1.6K 6.3K40 160 1K 4K25 100 630400 2.5K 10K 16K 63 250 1.6K 6.3K40 160 1K 4K25 100 630400 2.5K 10K 16KINPUTLEVEL

    0

    +12

    -12

    +6

    - 6

    INPUTLEVEL

    0

    +12

    -12

    0dB

    +12

    -12

    +6

    - 6

    Channel Two

    INPUT OUTPUT

    SIG CLIP SIGCLIP

    RANGE

    6 12

    EQ

    ON

    16KHz

    LOW-PASS

    40Hz

    HI-PASS

    0dB

    +12 INPUT OUTPUT

    SIGCLIP SIGCLIP

    RANGE

    6 12

    EQ

    ON

    16KHz

    LOW-PASS

    40Hz

    HI-PASS

    -12

    EQU215TWIN

    MKR

    LTO

    Dual 15 Band Graphic Equalizer

    R

    LTO

    63 250 1.6K 6.3K40 160 1K 4K25 100 630400 2.5K 10K

    0

    +12

    -12

    +6

    - 6- 6

    0dB

    +12

    -12

    Channel One

    LEVEL16K

    INPUT OUTPUT

    126 ON

    EQRANGE

    40Hz

    HI-PASS

    16KHz

    LOW-PASS

    SIG CLIP SIGCLIP

    63 250 1.6K 6.3K40 160 1K 4K25 100 630400 2.5K 10K LEVEL

    0

    +12

    -12

    +6

    - 6

    Channel Two

    0dB

    +12

    -12

    16K

    INPUT OUTPUT

    126 ON

    EQRANGE

    40Hz

    HI-PASS

    16KHz

    LOW-PASS

    SIG CLIP SIGCLIP

    EQU215MK V2

    R

    LTO

    31 Band Graphic Equalizer

    31.5 50 100 200 500 1.25K 2.5K 6.3K 12.5K25 40 80 160 400 1K 2K 5K 10K63 125 315 800250 630 1.6K 4K3.15K 8K 16K 20K20INPUTLEVEL

    0

    +12

    -12

    0dB

    +12

    -12

    +6

    - 6

    INPUT OUTPUT

    OUTPUT

    SIG CLIP SIG CLIP

    RANGE EQHIPASS

    6 12 ON16KHz40Hz

    LOWPASS

    EQU131VUMK

    POWER OUTPUT

    LTOR

    3. CONTROL ELEMENTSSPOTLIG

    HT

    Front panel

    1 11 3 9

    210

    12 56

    8

    7

    4

    EQU131VU-MKII

    EQU215-MKII V2

    4

    8

    7

    1 15 6 2

    3 12

    9

    10

    11

    EQU131-MKII V2

    11

    8

    653

    1

    EQU215TWIN-MKII

    12

    9

    10

    1 22

    4

    11

    12 9

    102

    3

    4

    5

    8 713 6

    1

    2

    20 31.5 50 100 200 500 1.25K 2.5K 6.3K 12.5K25 40 80 160 400 1K 2K 5K 10K63 125 315 800250 630 1.6K 4K3.15K 8K 16K 20K

    R

    LTO

    INPUT OUTPUT

    ON40Hz 16KHz126

    SIGCLIP SIGCLIP

    EQRANGE HIPASS

    LOWPASS

    31 Band Graphic Equalizer INPUTLEVEL

    0 0dB

    +12

    -12

    +12

    -12

    +6

    - 6

    EQU131MK V2

    7

  • 20 31.5 50 100 200 500 1.25K 2.5K 6.3K 12.5K25 40 80 160 400 1K 2K 5K 10K63 125 315 800250 630 1.6K 4K3.15K 8K 16K 20K

    20 31.5 50 100 200 2.5K 6.3K 12.5K25 40 80 160 2K 5K 10K63 125 315250 1.6K 4K3.15K 8K 16K 20K500 1.25K400 1K800630

    Channel One

    Channel TwoDual 31 Band Graphic Equalizer

    0

    +12

    -12

    0dB

    +12

    -12

    +6

    - 6

    INPUTLEVEL

    INPUTLEVEL

    0

    +12

    -12

    0dB

    +12

    -12

    +6

    - 6

    INPUT OUTPUT

    CLIP

    RANGE

    12 ON16KHz40Hz

    LOW-PASSHI-PASS

    SIG CLIP

    EQ

    SIG

    6

    INPUT OUTPUT

    CLIP

    12 ON16KHz40Hz

    SIG CLIP

    RANGE EQLOW-PASSHI-PASS

    SIG

    6

    EQU231TWIN

    MK V2

    R

    LTO

    20 31.5 50 100 200 2.5K 6.3K 12.5K25 40 80 160 2K 5K 10K63 125 315250 1.6K 4K3.15K 8K 16K 20K

    20 31.5 50 100 200 500 1.25K 2.5K 6.3K 12.5K25 40 80 160 400 1K 2K 5K 10K63 125 315 800250 630 1.6K 4K3.15K 8K 16K 20K

    500 1.25K400 1K800630INPUTLEVEL

    INPUTLEVEL

    0 0

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