DeskTop Theater™5.1 DTT2500 Digital Five Satellite/Subwoofer Speaker System With Dolby

© 1999 Cambridge SoundWorks, Inc.

DeskTop Theater ™ 5.1DTT2500 Digital

Five Satellite/SubwooferSpeaker System With Dolby Digital Processor

Installation and Operating Instructions

311 Needham Street, Newton, MA 024641-800-367-4434 Fax: 617-527-3194

www.hifi.com or e-mail us at [email protected]

Rev. A0420000547

i

Notice for the USAFCC Part 15: This equipment has been tested andfound to comply with the limits for a Class B digitaldevice, pursuant to Part 15 of the FCC Rules. Theselimits are designed to provide reasonable protectionagainst harmful interference in a residentialinstallation. This equipment generates, uses, and canradiate radio frequency energy and, if not installedand used in accordance with the instructions, maycause harmful interference to radio communications.However, this notice is not a guarantee thatinterference will not occur in a particularinstallation. If this equipment does cause harmfulinterference to radio or television reception, whichcan be determined by turning the equipment off andon, the user is encouraged to try one or more of thefollowing measures:

• Reorient or relocate the receiving antenna.

• Increase the distance between the equipmentand receiver.

• Connect the equipment to an outlet on acircuit different from that to which thereceiver is connected.

• Consult the dealer or an experiencedradio/ TV technician.

CAUTION: To comply with the limits for the ClassB digital device, pursuant to Part 15 of the FCCRules, this device must be installed with computerequipment certified to comply with the Class Blimits.

All cables used to connect the computer and peripheralsmust be shielded and grounded. Operation with non-certified computers or non- shielded cables may result ininterference to radio or television reception.

ModificationsAny changes or modifications not expressly approvedby the grantee of this device could void the user’sauthority to operate the device.

Notice for CanadaThis apparatus complies with the Class B limits forradio interference as specified in the CanadianDepartment of Communications Radio InterferenceRegulations.

Cet appareil est conforme aux normes de CLASSE “B”d’interference radio tel que spe’cifie’ par le MinistèreCanadien des Communications dans les règlementsd’interfèrence radio.

Declaration of ConformityAccording to the FCC96 208 and ET95-19

Name: Creative Labs Inc.

Address: 1901 McCarthy BoulevardMilpitas, CA. 95035

United StatesTel: (408) 428-6600

declares under its sole responsibility that the product

Trade Name: Creative Labs/Cambridge SoundWorks

Model Number: CSW3500

has been tested according to the FCC / CISPR22/85requirement for Class B devices and found compliantwith the following standards:

EMI/ EMC: ANSI C63.4 1992, FCC Part 15 Subpart B

This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions:

1. This device may not cause harmful interference,and

2. This device must accept any interference received,including interference that may cause undesirableoperation.

Ce matériel est conforme à la section 15 des réglesFCC. Son fonctionnement est soumis aux deuxconditions suivantes:

1. Le matériel ne peut étre source d’interférences et

2. Doit accepter toutes les interférences reques, Ycompris celles pouvant provoquer unfonctionnement indésirable.

Compliance ManagerCreative Labs, Inc.March 4, 1999

Safety & Regulatory InformationThe following sections contain notices for various countries:

WARNING: To prevent fireor shock hazard, do notexpose this appliance torain or moisture.

Important Notice

The serial number for the DTT2500 Digital islocated on the Decoder Amplifier. Please write thisnumber down and keep it in a secure area. This is foryour security.

ComplianceThis product conforms to the following Council Directive:

• Directive 89/ 336/ EEC, 92/ 31/ EEC (EMC),

73/23/EEC (LVD)

20ii

READ INSTRUCTIONS - All safety and oper-ating instructions should be read before theDTT2500 Digital amplified subwoofer/sat-ellite system is operated.

RETAIN INSTRUCTIONS - The safety andoperating instructions should be retainedfor future reference.

HEED WARNINGS - All warnings on thesubwoofer and in the operating instruc-tions should be adhered to.

FOLLOW INSTRUCTIONS - All operatingand use instructions should be followed.

CLEANING - Unplug the Power SupplyAdapter from the wall outlet or other powersource before cleaning. Do not use liquidcleaners or aerosol cleaners. Use a dampcloth for cleaning.

ATTACHMENTS - Do not use attachmentsnot recommended by CambridgeSoundWorks as they may cause hazards.

WATER AND MOISTURE - Do not use theDecoder Amplifier near water—for ex-ample, near a bath tub, wash bowl, kitchensink, or laundry tub; in a wet basement; ornear a swimming pool; and the like.

ACCESSORIES - Do not place the DTT2500Digital Decoder Amplifier on an unstablecart, stand, tripod, bracket, or table. TheDecoder Amplifier may fall, causing seri-ous injury to a child or adult, and seriousdamage to the product. Use only with acart, stand, tripod, bracket, or table rec-ommended by Cambridge Sound-Works,or sold with the product. Any mounting ofthe satellites or subwoofer should followthe manufacturer’s instructions, and

should use a mounting accessory recom-mended by Cambridge SoundWorks.

VENTILATION - Slots and openings in theDecoder Amplifier are provided for venti-lation and to ensure reliable operation ofthe Decoder Amplifier and to prevent itfrom overheating. These openings mustnot be blocked or covered. The openingsshould never be blocked by placing theproduct on a bed, sofa, rug, or other simi-lar surface. The Decoder Amplifier shouldnot be placed in a built-in installation suchas a bookcase or rack unless proper ven-ti lation is provided or CambridgeSoundWorks’ instructions have been ad-hered to.

HEAT - The Decoder Amplifier should besituated away from heat sources such asradiators, heat registers, stoves, and otherproducts (including amplifiers) that pro-duce heat.

POWER SOURCES - The Decoder Amplifiershould be operated only from the type ofpower source indicated on the markinglabel. If you are not sure of the type ofpower supply to your home, consult yourproduct dealer or local power company.For products intended to operate frombattery power, or other sources, refer tothe operating instructions.

POLARIZATION - The power supply may beequipped with a polarized alternating-cur-rent line plug (a plug having one bladewider than the other). This plug will fit intothe power outlet only one way. This is asafety feature. If you are unable to insert

the plug fully into the outlet, try reversingthe plug. If the plug should still fail to fit,contact your electrician to replace yourobsolete outlet. Do not defeat the safetypurpose of the polarized plug.

POWER-CORD PROTECTION - Power sup-ply cords should be routed so that they arenot likely to be walked on or pinched byitems placed upon or against them, payingparticular attention to cords at plugs, con-venience receptacles, and the point wherethey exit from the Decoder Amplifier.

LIGHTNING - For added protection for theDTT2500 Digital system during a lightningstorm, or when it is left unattended andunused for long periods of time, unplug itfrom the wall outlet. This will prevent dam-age to the Decoder Amplifier due to light-ning and power-line surges.

OVERLOADING - Do not overload wall out-lets, extension cords, or integral conve-nience receptacles as this can result in arisk of fire or electric shock.

OBJECT AND LIQUID ENTRY - Never pushobjects of any kind into the Decoder Am-plifier through openings as they may touchdangerous voltage points or short out partsthat could result in a fire or electric shock.Never spill liquid of any kind on the speak-ers or the Decoder Amplifier.

SERVICING - Do not attempt to service theany part of the DTT2500 Digital yourselfas opening or removing covers may ex-pose you to dangerous voltage or otherhazards. Refer all servicing to qualifiedservice personnel.

DAMAGE REQUIRING SERVICE - Unplugthe power supply from the wall outlet orother power source and refer servicing toqualified service personnel under the fol-lowing conditions:a) When the power supply cord or plug isdamaged.b) If liquid has been spilled, or objectshave fallen into the subwoofer.c) If the Decoder Amplifier has been ex-posed to rain or water.d) If the subwoofer does not operate nor-mally by following the operating instruc-tions; or exhibits a distinct change in per-formance.e) If the product has been dropped ordamaged in any way.

REPLACEMENT PARTS - When replace-ment parts are required, be sure the ser-vice technician has used replacementparts specified by Cambridge SoundWorksor have the same characteristics as theoriginal parts. Unauthorized substitutionsmay result in fire, electric shock, or otherhazards.

SAFETY CHECK - Upon completion of anyservice or repairs to the DTT2500 Digitalsystem, ask the service technician to per-form safety checks to determine that theDeskTop Theater 5.1 system is in properoperating condition.

WALL OR CEILING MOUNTING - TheDTT2500 Digital satellites should bemounted to a wall or ceiling only as rec-ommended by Cambridge SoundWorks.

IMPORTANT SAFETY INSTRUCTIONSInside AsiaCreative Technology Ltd. Technical Support31 International Business Park,Creative Resource, Singapore 609921

Tel: +65 8954100Fax: +65 8954999BBS: +65 776 2423

Operating Hours (Singapore Time)Mon-Thu: 9am-6:30pmFri: 9am-6pmSat-Sun & Public Holidays: Closed

This warranty is valid only when thespeaker is returned to the retailer thatsold the DeskTop Theater 5.1 DTT2500Digital to the original purchaser.

This is the sole and express warranty.This warranty is in lieu of all otherwarranties, expressed or implied, ofmerchantability, fitness for purpose orotherwise. In no event shall CambridgeSoundWorks be liable for incidental orconsequential damages or have anyliability with respect to defects otherthan the obligations set forth as stated.

To ensure warranty coverage, it isincumbent upon the original purchaserof DeskTop Theater 5.1 DTT2500Digital to inform the retailer of thedefect within the warranty period. Theonly acceptable method of establishingwarranty status isa copy of the original proof of purchaseindicating customers name andpurchase date.

1-Year Limited Warrantyo the original purchaser,Cambridge SoundWorks, Inc.(a division of CreativeTechnologies, Ltd.) will

warrant the DeskTop Theater 5.1DTT2500 Digital system to be freeof defects in material andworkmanship for a period of one(1) year from date of purchase.With respect to defects, CambridgeSoundWorks will, at its option,replace the product or repair thedefect in the product with nocharge to the original purchaser forparts or labor.

This warranty does not extend toany defect, malfunction or failurecaused by misuse, abuse, accident,faulty hookup, defective associatedequipment or use of the speakerwith equipment for which it is notintended.

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© 1999 Cambridge SoundWorks, Inc. All rights reserved. Cambridge SoundWorks is a registered trademark, and PCWorks and DeskTop Theater are trademarks of Cambridge SoundWorks, Inc., Newton,MA. The Creative logo and Sound Blaster logo are registered trademarks and the Environmental Audio logo and Creative Multi Speaker Surround are trademarks of Creative Technology Ltd. The DesktopTheater 5.1 DTT2500 Digital Dolby Digital Decoder Amplifier is manufactured under the license from Dolby Laboratories. “Dolby”, “Pro Logic”, “AC-3”, and the Double-D symbol are trademarks of DolbyLaboratories. Confidential unpublished works. Copyright 1992-1997 Dolby Laboratories, Inc. All rights reserved. Microsoft and DirectSound are registered trademarks of Microsoft Inc. All other brands andproduct names are trademarks or registered trademarks of their respective holders. All specifications are subject to change without prior notice. Actual contents may differ slightly from those pictured.

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Inside EuropeCreative Labs (Ireland) Ltd. Technical SupportBallycoolin Business Park, Blanchardstown Dublin,15 Ireland

Ireland Tel: +353 1 820 7555Fax: +353 1 820 5052BBS: +353 1 820 3784 (HST)

+353 1 820 3818 (ZyXEL)Belgium Tel: +32 32300997 (French)(for Benelux) Fax: +32 32300998 (Dutch)

BBS: +32 3281 4631 (HST V.34)+32 3281 4632 (V.34)

Denmark Tel: 8001 7177 (Freephone)BBS: +45 4824 4351 (HST V.34)

+45 4824 4361 (V.34)Finland Tel: 08001 18052 (Freephone)

BBS: +45 4824 4351 (HST V.34)+45 4824 4361 (ZyXEL 19,200)

France Tel: +33 1 39 20 04 21Fax: +33 1 39 20 90 10BBS: +33 1 39 20 90 43 (HST)

+33 1 39 20 90 47 (V.32bis)Minitel: 3615 CREATIVE and 3617 CREATIVE

Germany Tel: +49 089 9579081(for Central and Fax: +49 089 9577453Eastern Europe) BBS: +49 089 9577274

Holland Tel: +3115578244Italy Tel: +39 2 982 4 4100Norway Tel: 800 11663 (Freephone)

BBS: +45 4824 4351 (HST V.34)+45 4824 4361 (ZyTEL 19,200)

Scandinavia Tel: +45 4824 4322Fax: +45 4824 4323

Spain Tel: 900 953536 (Freephone)Sweden Tel: 020 791088 (Freephone)

BBS: +45 4824 4351 (HST V.34)+45 4824 4361 (ZyTEL 19,200)

UK Tel: +44 01734 344 744Fax: +44 01734 320 271BBS: +44 01743 360 287

Operating hoursMon-Fri: Business HoursSat-Sun: ClosedFaxback is a facility that allows you to obtain product and technical informationthrough facsimile services. In Europe, use the following number: +353 1 820 3667.

Declaration Of Conformity .................................................................................. iSafety Precautions ............................................................................................ i, iiIntroduction ......................................................................................................... 1Inspecting For Damage ........................................................................................ 2Important Notes ................................................................................................... 2Installation Sequence ........................................................................................... 3Speaker Placement ............................................................................................... 3Speaker Wire and Stand Installation ................................................................... 6Attaching The Floor Stands ................................................................................. 7Mounting The Speakers ....................................................................................... 7Decoder Amplifier Functions .............................................................................. 8Making Connections ............................................................................................ 8Wiring Diagram ................................................................................................... 9Connection to Sound Blaster Live! Via Digital DIN .......................................... 9Decoder Amplifier Placement ........................................................................... 10Surround Reference ........................................................................................... 12

Dolby Digital ................................................................................................. 12Dolby Surround with Pro Logic .................................................................... 12Creative Multi Speaker Surround.................................................................. 13Audio Mode Selection ................................................................................... 13

Applications Guide ............................................................................................ 14Specifications ..................................................................................................... 18Important ............................................................................................................ 18Technical Support .............................................................................................. 181-Year Limited Warranty .................................................................................. 20

ContentsDeskTop Theater 5.1

DTT2500 Digital

1 18

Technical SupportInside U.S.A., Canada and Latin AmericaCreative Labs Inc. Technical SupportIf you need technical assistance, call 405-742-6622. Technical support is availableseven days a week from 8:00 am to midnight, Central time. You can get the latestprogram and driver updates from Creative Labs’ bulletin board, 24 hours a day. Call405-742-6660; use modem settings:

Baud rate: 300 to 14400(V.32/V.42 bis)

Data bits: 8Parity: noneStop bits: 1

You can also send a FAX at 405-742-6633 or write us at:

Technical SupportCreative Labs, Inc.1523 Cimarron PlazaStillwater, OK 74075

To reach Creative Technical support via the Internet, visit our technical support website at http://www.creativehelp.com, for troubleshooting help.

For information about this product and other Creative Labs’ products, visit CreativeZone at http://www.soundblaster.com. Or, call Customer Service at 800-998-1000.

Faxback information is available by calling 405-372-5227.

SpecificationsDeskTop Theater 5.1

DTT2500 DigitalSix-channel

Amplifier Specifications

Left, Right, Left Surround, RightSurround amplifiers, each of four: 7watts RMS per channel

Center Channel amplifier: 21 wattsper channel

Subwoofer amplifier: 20 watts perchannel

ImportantPlayback LevelsDDT2500 Digital is intended forindividual or small group listening andwill achieve surprisingly high outputlevels. However, playing the systemcontinuously at overly loud, distortedlevels on heavy bass program materialmay cause its internal fuse to blow.

The fuse can be replaced only by aqualified representative. To avoid thisinconvenience and a possible non-warranty repair charge, reduce theplayback volume when the systemshows obvious signs of stress, i.e. itsounds “raspy,” “fuzzy,” and/or“muddy.”

hank you for purchasingDeskTop Theater 5.1DTT2500 Digital byCambridge SoundWorks.

Introduction

Cambridge SoundWorks1-800-FOR-HIFI(1-800-367-4434),8 AM to Midnight,

Eastern time1 PM to 4 AM

Greenwich Mean TimeIn Canada: 1-800-525-4434

Outside US or Canada:Tel: 617-332-5936Fax: 617-527-3194

www.hifi.comor e-mail us at [email protected]

DeskTop Theater 5.1 DTT2500 Digitallets you experience the full potentialof Dolby Digital® multichannel soundfrom your computer DVD player, witha dynamic output that rivals acomponent home theater system. Itprocesses both Dolby Digital andDolby Surround program material. DeskTop Theater 5.1 DTT2500Digital offers discreet four-channelsupport for Microsoft® DirectSound® 3Dand its other derivatives. In some oftoday’s best CD-based action games,DeskTop Theater 5.1 DTT2500 Digitalcan automatically decode the DolbySurround cut-scenes while offeringenveloping positional four channelaudio. It’s ready for the new era ofDVD-based games.

Also included is Creative MultiSpeaker Surround, which lets you hearall of your favorite stereo programmaterial with a new and excitingthree-dimensional quality.

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CD Audio Music:Enjoying CD Audio on PCSelect the MUSIC mode by pressingthe Creative Multi Speaker Surround(CMSS) button until the LED forMUSIC mode lights up. This modecreates an enveloping five-speakersurround effect that enhances stereomusic.

Karaoke Music:Singing Karaoke on PC with SBLive! and Creative PC-DVDDecoder Card (with CreativeNavigator application)1. Connect your microphone to the MIC IN of SB Live!.2. Enable the Microphone source in the Mixer.3. Select one of the seven Karaoke modes under Environment in Creative Launcher.4. Press the AUDIO MODE button of the DTT2500 Digital decoder amplifier unit until you hear only the music i.e. vocal portion is masked out.

Singing Karaoke on PC with SBLive! only (with CreativePlayCenter)1. Connect your microphone to the MIC IN of SB Live!.2. Enable the Microphone source in the Mixer.3. Select one of the seven Karaoke modes under Environment in Creative Launcher.4. Click the Audio Menu button on the Creative PlayCenter to hear only the music, i.e. with the vocal portion masked out.

InspectingFor Damage

Important Notesconnection, to hear the clearest digitalaudio available. Conventional 2-channel sound cards such as SoundBlaster 16 or the Sound Blaster AWEseries can also be used with DTT2500Digital, but these cards will notprovide rear channel output whenplaying games using DirectSound®3Dor its derivatives.

One pair of satellites has cables thatare 3 meters (9 feet) long. The otherpair has cables that are 5 meters (16

These instructions assume you havea DVD player with a coaxial DolbyDigital (AC-3) output (for example, theCreative Labs PC-DVD Encore).These instructions also assume yoursound card supports processing ofDirectSound®3D, including front andrear two-channel minijack line outputs(like Creative Labs Sound Blaster PCIseries or Sound Blaster Live! series).Sound Blaster Live! owners shouldutilize the exclusive Digital DIN

feet) long. Typically, the two satelliteswith the longer cables will be used onthe surround channels, but thesatellites are otherwise identical. Ifyou need extra cable length for thefront channel satellites, use the pairwith the longer cables instead.

All the speakers are magneticallyshielded, but the subwoofer is not.

Examine each unit carefully for signs ofshipping damage. If there is any damage, donot install the system. Consult the storewhere you purchased the system or call theappropriate Creative Technology, Ltd.support group at the number listed at theend of this publication. Save the shippingcarton and inserts in case you have totransport the system later.

All the items shown in the illustrationshould be included. If anything is missing,notify the retailer.

Support Extends (18)

Holder/Cap (2)

Supports (3)

Feet (3)

Frames (2)

Quick Reference Guide

Desktop Stands for satellites (5)

CREATIVEMULTI SPEAKER

DTT 3500 DIGITAL

MUSI MOVI FOURPOINDOLBYDIGITA

L

DOLBY AUDIO SPEAKER MUT

LL R

MASTE CENTE SUBWOOFE SURROUND

PRO LOGIC

ANALOG INDIGITAL IN

POWER

STEREO

Decoder Amplifier

Monitor Stand

(5) Wall Mounting Hardware

SPDIF DIN Cable

Tandem Audio Cable (Green and Black Miniplugs)

SPDIF Cable (RCA to RCA)

Strips of 4 feet (5)

3 meter speaker wires (4)

5 meter speaker wires (2)

Hook and Loop Fasteners (10) Satellite Position Stickers

CSUB

RSLSRL

CSUBRSLSRL

CSUBRSLSRL

Satellites (5)

3 16

Playing Microsoft DirectSound 3Dor Environmental Audio Games1. Under CMSS on your DTT2500 Digital decoder amplifier, select FOURPOINT to fully enjoy the 4-channel gaming experience from Microsoft DirectSound3D or Creative Environmental Audio (EA) titles with a 4- channel audio card.2. For Sound Blaster Live! users, enable the 4-Speaker configuration on your PC. Otherwise, select FourPoint under CMSS on your DTT2500 Digital decoder amplifier unit.

Playing Games:Playing Multi-format DVD GamesThese games have Dolby Digital orDolby Pro Logic movie clips mixedwith the actual game sequence.Select the MUSIC or MOVIE modeby pressing the Creative MultiSpeaker Surround (CMSS) buttonuntil the LED for MUSIC or MOVIEmode lights up.

Playing Conventional GamesSelect MUSIC or MOVIE by pressingthe Creative Multi Speaker Surround(CMSS) button until the LED forMUSIC or MOVIE mode lights up.

CREATIVEMULTI SPEAKER SURROUND

DTT 3500 DIGITAL

MUSIC MOVIE FOURPOINTDOLBYDIGITAL

DOLBY SURROUND AUDIO MODE SPEAKER TEST MUTE

LL RR

MASTER CENTER SUBWOOFER SURROUND

PRO LOGIC

ANALOG INDIGITAL IN

POWER

STEREO

Speaker PlacementInstallation Sequence1. Read all of the instructions before

installing the speaker system.2. Using the placement instructions as

a guide, position the satellites, thecenter channel speaker andsubwoofer around your computer.Install the Desktop Stands andFloor Stands as appropriate. If youwish to substitute a poweredsubwoofer for the subwoofer thatcomes with the DTT2500 Digital,read Substituting a poweredsubwoofer page 5.

3. Connect the satellite speakers,center channel speaker, andsubwoofer to the back of theDecoder Amplifier.

4. Connect the Dolby Digital outputof your digital program source(typically a DVD player) to theDolby Digital input of the DecoderAmplifier.

5. Connect your normal audio signalsources via the Line In and Rear Ininputs. An owner of a SoundBlaster Live! sound card with aDigital DIN output should use thesupplied cable to connect it to theDigital DIN input instead.

6. With the Decoder Amplifier’spower switch “off”, connect thepower supply adaptor to theDecoder Amplifier.

7. Turn on the power. Use theSPEAKER TEST mode to positionand balance the speakers.

8. You may wish to experiment withspeaker placement briefly beforeconcealing the connecting cablesand making the installation morepermanent.

9. The unit is ready for you to enjoy.Refer to the Quick Reference guidefor information about settings forspecific program sources like DVD,CDs, Video CD and games.

The Front Satellites. The left frontand right front satellites play stereomusic, the off-screen sounds ofvideo playback and the frontchannels of four channel games.

These satellites should be placedto the sides of your monitor (seeDiagram A). Be sure to have a clearline of sight from your listeningposition to these satellites. Thesatellites intended for frontplacement have 3 meters (9 feet) ofcable.

Install the satellite’s DesktopStands when using them on thedesktop (see page 6).

The satellites may also be hung on thewall behind the monitor using the screwand wall anchors provided (see“Mounting The Speakers”, page 7).

If you wish to save desktop space,use the hook and loop fasteners toattach the satellite speakers to the sidesof the computer monitor (see Diagram B).

The Center Channel Speaker. Thecenter channel speaker provides the on-screen effects and dialog in DolbyDigital, Dolby Surround or CreativeMulti Speaker Surround modes. Itshould be placed as close to the centerof your computer monitor as possible.

A B

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Playing VCD Movies:Using PC-DVD player on PC1. Disable the ‘Creative Multi Speaker Surround’ (CMSS) function by pressing the CMSS button until all four LEDs are off.

For VCD movies with Dolby Surround-encoded stereo program: You can use the Dolby Pro Logic decoder, by selecting PRO LOGIC DIGITAL IN, to experience 5.1-channel movie viewing.

For VCD movies: You will have Digital 2.1 channel output. To enhance the experience, enable the Digital Pro Logic by pressing the DOLBY SURROUND button until the DIGITAL IN LED lights up.

Using VCD player on TV1. Connect Video Out of the VCD player to Video Input of your television.2. Connect the Audio Out of the VCD player to the Line In of your DTT2500 Digital decoder amplifier unit.3. Select the MOVIE mode by pressing the Creative Multi Speaker Surround (CMSS) button until the LED for MOVIE mode lights up.

You can experience surround soundinstead of mono/stereo sound; alldialog and central sounds will beheard through the center speaker,while music and off-stage sounds areheard through the other four satellites.

Using SoftMPEG player orPlayCenter on PC1. Select the MOVIE mode by pressing the Creative Multi Speaker Surround (CMSS) button until the LED for MOVIE mode lights up.

This mode lets you experience the surround sound with 5.1- channel output; all dialog and central sounds will be heard through the center speaker, while music and off-stage sounds are heard through the other four satellites.

If you are using PlayCenter to playthe VCDs, disable all CMSS effectsin your PlayCenter - use onlyDTT2500 Digital CMSS MOVIEmode.

There are many mountingpossibilities. The monitor stand canbe attached with hook and loopfasteners to the top of the computermonitor. It directs the sound downtowards the listener (see Diagram C).

If your computer monitor’sconstruction directs the sound of thecenter channel satellite towards youwithout a stand, attach the satellitedirectly to the top of the monitor,using the hook and loop fasteners (see

Diagram D). Position the face of thecenter channel so that it is as farforward as possible.

Use a Desktop Stand to position acenter channel satellite in front of themonitor. It directs the sound uptowards the listener (see Diagram E).

The Center Speaker may also behung on the wall behind the monitorusing the screw and wall anchorsprovided (see “Mounting TheSpeakers”, page 7).

The Rear Satellites. The rearsatellites provide the surroundeffects in Dolby Digital, DolbySurround and Creative MultiSpeaker Surround modes. They alsoprovide the discreet rear soundsproduced in four channel gaming.

5 meters (16 feet) of cable isprovided with the two remaining smallsatellites for more flexibility in rearchannel placement.

The rear satellites may be placed inany convenient sites alongside thelistener, including sites slightlyforward of the listening location.

The rear satellites do not have to beat exactly the same height, nor at the

C D E

F G

same height as the front satellites.If you have side walls close to your

listening position, excellent place-ment for the rear satellites is slightlybehind your listening position, slightlyabove ear level (see Diagram F). Thesatellites may be hung on the wallusing the screw and wall anchorsprovided (see Mounting TheSpeakers page 7).

Do not be concerned if thisplacement is not practical. Any rearsatellite placement to the left and rightside of the listening position willprovide strong directional andsurround effects.

5 14

The rear satellites may be installed ontheir convenient floor stands. Whilelistening, the stands should be positionedto the left and right of your listeningposition (see Diagram G on theprevious page).

The Floor Stands are small enoughto be stowed underneath a desk whennot in use. See page 7 for floor standassembly instructions.

Larger work surfaces can accommo-date both front and surround pairs ofsatellites on their Desktop Stands. Trythe extreme corners of a desk using theDesktop Stands (see Diagram H).

Also, you may attach the rearsatellites under a desktop or at thesides of a desk using the hook andloop fasteners (see Diagram I).

After you have positioned the rearsatellites, use the test sound to makesure each speaker can be heardclearly.

The Subwoofer. The subwoofer’soptimum position is on the flooragainst the wall under the computerdesk. The nearer the subwoofer is tothe corner of the room, the strongerits maximum bass output will be. Westrongly recommend placing the

subwoofer on the floor (see Diagram J).Leave at least 8 cm (3 inches) of

space between the subwoofer faceand a wall. Small objects in front of,but not touching the subwoofer (tablelegs, for instance) will have no effecton its sound. If you have noavailable floor space, the subwoofercan be placed on a shelf, desktop orother sites, but its maximum outputwill be reduced. The subwoofer is notmagnetically shielded, so position itat least 18 inches away from acomputer monitor.

H I J

Substituting a poweredsubwoofer. You may substitute apowered subwoofer for the subwooferthat comes with the DTT2500 Digital.Connect its line level input (typicallyan RCA jack) to the dedicatedsubwoofer output on the back of theDecoder Amplifier, using a shieldedaudio cable with RCA plugs on eachend. Refer to the poweredsubwoofer’s User Manual foradjustment procedures.

Using DVD player on TV1. Connect Video Out of the DVD player to Video Input of your television.2. Connect Dolby Digital compressed signal output from your DVD player to the DOLBY DIGITAL (AC-3) SPDIF IN of your DTT2500 Digital decoder amplifier unit.3. Press the CMSS button until all its three LEDs are off to disable the Creative Multi Speaker Surround (CMSS) function.

For movies with Dolby Digital 5.1 (AC-3) soundtracks: This signal is detected automatically and the DOLBY DIGITAL LED lights up. You will experience Dolby Digital 5.1 channel output.

For two-channel DVD movies which are Dolby Surround-encoded: The Dolby Pro Logic decoder will automatically decode the program for 5.1 channel movie experience.

Applications GuidePlaying DVD Movies:Using PC-DVD player on PC1. Disable the ‘Creative Multi Speaker Surround’ (CMSS) function by pressing the CMSS button until all four LEDs are off.

For movies with Dolby Digital 5.1 (AC-3) soundtracks: This signal is detected automatically and the DOLBY DIGITAL LED lights up. You will experience Dolby Digital 5.1 channel output.

For two-channel movies which are Dolby Surround- encoded carried within the Dolby Digital compressed bitstream: The Dolby Pro Logic decoder will automatically decode the program for 5.1 channel movie experience.

Connection Guide for DeskTop Theatre 5.1 DTT2500 Digital with Sound Blaster Live! and Creative PC-DVD system.

LINE IN

MIC IN

LINE OUT

REAR OUT

AUX_IN

DigitalAudio

AnalogAudio

DOLBY DIGITAL(AC-3) SPDIF IN

SPEAKER OUTPUTS

LINE IN REAR IN

C SUBWOOFER RS LS R L

15VDC IN

DIGITALDIN

ANALOG AUTO

INPUT

PC-DVD ROM Drive

4-Channel Sound Card(e.g. Sound Blaster Live!)

MPC-to-MPC CD-Audio Cable

Dolby Digital (AC-3)SPDIF Out

Encore Dxr2 / PC-DVD MPEG2Decoder Card (Luxsonar)

AUDIO_OUT

CD_IN

613

Speaker Wire and Stand Installation Typically, the 3 meter speakercables will connect the front andcenter satellites to the DecoderAmplifier and the 5 meter cableswill connect the rear satellites tothe Decoder Amplifier. A panel oftwelve self-adhesive labels isprovided to identify each satelliteand subwoofer and the oppositeend of the cable connected to asatellite and subwoofer.1. Identify a 3 meter cable. Most

often, a satellite will be used with adesktop stand. In this case, threadthe bare wire end of a 3 meter cablethrough the hole in the desktopstand. Connect this end to asatellite (as shown in Diagram K).Carefully insert the desktop stand’sattachment arm into the socket inthe back of the satellite, taking upany slack in the cable as required.

2. To use this satellite in the front leftposition, remove the backing fromthe small, round “L” label andapply it to the back of the satellite(see Diagram K).

3. Remove the backing from theremaining, longer “L” label and wrapit around the opposite end of thespeaker cable near the RCA-type plug.

4. Place the satellite in the front leftposition.

5. Repeat this process using another 3meter cable for the front right satellite,using the “R” labels.

6. Connect another 3 meter cable to asatellite. Use the “C” (center) labels.If used, the Monitor Stand attaches tothe satellite in the same manner as theDesktop Stands, although it does nothave a hole for the speaker wire.Route the wire to the left or right sideof the attachment strut. Position thesatellite.

7. If you wish to use the Floor Standswith the rear satellites, assemble thestand according to Attaching TheFloor Stand instructions on page 7.Use the RS and LS labels (right andleft surround) and 5 meter cables.

8. Connect the subwoofer using the last 3meter cable to the “SUB” labels.

Diagram K: To connect the speakerwire to each satellite, press one of thespring-loaded tabs to expose theconnection hole. Insert the bare end ofthe wire into the exposed hole, thenrelease the tab to lock the wire in place.Connect wires with red bands to red tabconnectors, and unmarked wires toblack tab connectors. Notes: Matching red wires to redtabs and unmarked wires to blacktabs insures the speakers all play “inphase”. “Out-of-phase” connectionswill do no electrical harm, but theoverall sound quality will be greatlyreduced. You can substitute regular18 gauge speaker wire to createlonger cables, if needed.

K


SPEAKER OUTPUTS

LINE IN REAR IN


15VDC IN

DIGITALDIN

ANALOG AUTO

INPUT

C

SUB

RS

LS

RC

SU

BR

SLS

R

CS

UB

RS

LSR

REARRIGHTL

L

Creative Multi SpeakerSurround (CMSS)

CMSS is a 2-channel to 5.1-channelsound processor similar in some aspectsto a Dolby Surround with Pro Logicprocessor.

CMSS Music mode creates aconvincing 5.1 channel surroundsoundfield with typical stereo sources,whether they are Dolby Surround-encoded or not. It works well with DolbyPro Logic, WAVE, AVI and MIDIprogram material. In essence, CMSSMusic mode puts you “on the stage”for the music’s performance, surround-ing you with the performers.

In a similar manner, CMSS Moviemode provides the sonic impression ofbeing front and center at a moviescreening. Dialog and all normallycentered sounds from a stereo programare heard through the center speaker. Usethis mode whenever a music program hassounds you want to blend with on-screenaction or dialog.

Unlike Pro Logic decoding, CMSSMusic, Movie and Four Point modesare appropriate for use with multi-coded sources such as DVD games. Insome game titles, the movie sequencesmay be encoded in Dolby Surroundbut the game sequences may be in theWAV format. CMSS Movie modesupports 6-channel output for .WAV,.AVI, .MIDI and other audio softwareformats. Few, if any of these kinds offormats are Dolby Surround encoded.

The FOURPOINT mode passes thefour discreet channel audio of four-channel games direct to each satellitechannel. It does not synthesize rearchannel output, so stereo signal in thismode will play just through the fronttwo speakers and subwoofer.

The STEREO mode plays the Leftand Right Front speakers and thesubwoofer. It also lets you hear thestereo downmix from any DVD.

Audio Mode SelectionThe stereo soundtracks of some

movies on the Video CD (VCDformat) contain different languages.For example, a two channel soundtrackmay contain Mandarin on the rightchannel and English on the leftchannel. The VCD program literatureshould indicate the presence of dual-language soundtracks. Similarly, somemovies in the DVD format will containdual-language soundtracks. DTT2500Digital lets you select one of theselanguages and play it through both theLeft and Right speakers.

If there is no indication of whichchannel is which and you hear twodifferent language soundtracks duringstereo playback, select the “LL” and“RR” settings until you find thelanguage soundtrack you want.

The Audio Mode selection featurecan only be used with the PCM digitalsoundtrack of a Video CD or DVDwith a stereo soundtrack, not a DVDencoded with Dolby Digital 5.1 soundor Dolby Surround-encoded material.If you have an analog program withseparate left and right channels (theanalog output of a CD ROM, or theanalog stereo output of a “software”video CD, for instance), you will haveto use the balance control in your PC’saudio software to mute the undesiredchannel.

7 12

Dolby DigitalDolby Digital (earlier called AC-3)

delivers five discreet full-rangechannels (left front, center, right front,left surround and right surround) plus aseparate Low Frequency Effects (LFE)channel.

Many soundtracks on the latestgeneration laser discs, DVDs and HighDefinition Television (HDTV), areencoded with Dolby Digital technol-ogy.

When a 5.1 channel Dolby Digitalprogram source is playing, such asfrom a Creative PC-DVD player, theDolby Digital indicator light willilluminate automatically.

Note: Not every section of a DVDwill be 5.1-channel encoded. On manyDVDs, only the main movie programwill be available in 5.1 channel sound.Other supporting chapters (like a“Director’s Comment” section) may bein stereo or mono. These sections willnot light the Dolby Digital indicatoreven though the sound will be properlyreproduced by the DTT2500 Digital.

Dolby Pro Logic Dolby Surround is an earlier

surround sound standard which isdecoded with a Pro Logic processor inthe DT2500 Digital. The Pro Logicsteering circuitry derives separatecenter and rear channels from encodedstereo program sources.

Pro Logic processing provides aconvincing movie soundfield when thematerial is specifically encoded forDolby Surround. Most older stereomovie soundtracks will only beencoded for Dolby Surround, eventhough the program source may be aDVD’s digital output. Most DVDscontaining Dolby Surround programmaterial will cause both the DolbyDigital and Digital Pro Logic lights toilluminate. DTT2500 Digital willdecode these digitally transferredDolby Surround programs through thedigital Pro Logic decoder automatically.

When listening to DVD movies with5.1 channel Dolby Digital sound, besure to listen only to the digital programsource. You can insure this by:

1) making sure your DVDplayer’s stereo downmix isnot sent to your soundcard. Forexample, disconnect any cablelink between the cards.2) making sure all four CMSSindicator lights are off(MUSIC, MOVIE,FOURPOINTand STEREO)3) muting the “CD” input ofyour computer’s software mixer/volume control application.When playing a DVD game with a

mix of Dolby Digital 5.1 sound (adigital signal at the SPDIF input) andsoundcard wavetable output (a signal atthe analog input), be sure to engage theFOURPOINT mode in the CMSS settings.

CD-ROMs and CD’s with DolbySurround encoding will featurethe Dolby Surround logo at thebeginning of the program or on thepackaging. Process these programs bymaking sure all CMSS indicator lightsare off and selecting the Pro LogicAnalog Input setting of the SurroundMode button.

Do not select a Pro Logic decodingmode if the program material is notencoded for Dolby Surround.Excessive center channel output willresult, and most stereo effect will belost. Use CMSS “Movie” or “Music”modes to upmix stereo programs to arealistic 5.1 channel sound field.

Surround ReferenceAttaching The Floor StandsThe rear satellites may be installedin their floor stands.1. Insert the support into the

support extend.2. Insert one end of a support

extend to the support. There arenine support extends for eachfloor stand to enable you to adjustto a suitable height.

3. Insert a rubber foot into each ofthe bottom-most supportextends.

4. Insert the rear cable through theback of the holder/cap.

5. Connect the frame to stabilise thefloor stand.

6. Connect the cable to the satellitespeaker and attach the satellite tothe holder/cap.

7. Tuck the cable neatly into thegrooves available on any of thesupport extends.

Satellite

Holder/cap

Support

Support extend

Frame

Foot

Mounting The SpeakersScrew Mounting: The Satellite and

Center Channel speakers may behung on a wall using an M5 screwand their keyhole openings.

First attach four self-adhesive feetto the back of each satellite (seeDiagram P) insuring a vibration-free,secure installation. Leave about 3/8 ofan inch of the screw-head exposed tofit into the back of the speaker.

Plastic anchors may be needed to

secure the screws into particularlyhard or soft material. If so, drill theappropriate sized holes in the walland tap the anchors into the holesuntil they are flush with the wall.Insert the screws into the anchorsuntil they protrude 3/8 inch from thewall.

P

811

CAMBRIDGESOUNDWORKS




LL R


PRO LOGIC

ANALOG INDIGITAL IN

POWER

1

STEREO

2

3

9876

5

4

The speaker level controls operate atall times. If desired, you may adjustthese controls during program materialto fine-tune the balance.

9. Mute: Mutes all output from theDTT2500 Digital. Press the button onceto mute. Press a second time to restoreaudio output.

The CMSS, Dolby Surround, AudioMode and Speaker Test buttons areoperable during mute.

Then make sure the speakers arepositioned so that the test sound canbe clearly heard.

Finally, adjust the front panel levelcontrols for the center, subwoofer andrear speakers. Adjust each control soits speaker achieves a balancedoutput level with the left and rightsatellites (which provide a fixed“reference” output level).

All Decoder Amplifier functionsexcept for the level controls aredisabled while the test sound isrunning.


DTT 3500 DIGITAL



LL RR


PRO LOGIC

ANALOG INDIGITAL IN

POWER

STEREO


DTT 3500 DIGITAL



LL RR


PRO LOGIC

ANALOG INDIGITAL IN

POWER

STEREO

Decoder AmplifierPlacement

QR

Making ConnectionsConsult the Wiring Diagram on

the next page before making anyconnections.

Speaker Connections. Insert onesatellite’s plug into the correspond-ing Speaker Output on the DecoderAmplifier. Repeat this process forthe remaining satellites andsubwoofer. If substituting apowered subwoofer, connect it tothe SUBWOOFER LINE OUT.

Signal Connections.Dolby Digital. Connect the DolbyDigital/SPDIF output of yoursignal source to the DecoderAmplifier’s Dolby Digital inputusing the cable with the RCAplugs at each end.For Sound Blaster Live! soundcards with a digital I/O card:Connect its Digital DIN output tothe Digital DIN input with thesupplied Digital DIN cable (theone with the red plugs at each

end). It is not necessary to connecta cable to the Line In and Rear Ininput in this instance. Refer toConnection to Sound Blaster Live!via Digital DIN (next page) formore information about thisconnection.For all other sound cards: Use thetandem audio signal cable. Connectthe green stereo miniplugs to theLine Out minijack output of yoursound card and to the Line Inminijack output of the DecoderAmplifier. Connect the black stereominiplugs to the Rear Out minijackoutput of your sound card (ifpresent) and to the Rear In minijackinput of the Decoder Amplifier.)Power Supply Adapter Connec-tions. Confirm the power switch isin the “OFF” position. Insert thepower supply’s AC plug into anappropriate receptacle. Insert thesmall DC connector into the “15VDC IN” receptacle on the back ofthe Decoder Amplifier.

Hook and Loop Fasteners: Whenmounting speakers with hook andloop fasteners, make sure that allsurfaces are clean and free of dirtand grease. Hard, flat, unpaintedsurfaces work best with hook andloop fasteners (see Diagram Q).

Attach the fastener first to aspeaker. Then remove theremaining backing and adhere tothe chosen surface.

The Decoder Amplifier can be placed onthe desktop, a shelf or any site that makesthe controls convenient (see Diagram R).

The Power Adapter cord must beable to reach from the Decoder Amplifierback panel to your AC power receptacle.

Place the Decoder Amplifier on a hard,flat surface.

There are ventilation slots on the bottomand top of the Decoder Amplifier’senclosure. Don’t block the ventilation slotsby placing material on top of or below theDecoder Amplifier.

9 10

No lights illuminated: Mutes anyanalog stereo or CMSS output. Usethis setting if you wish to play ananalog stereo signal through theDolby Pro Logic processor. For more information aboutCreative Multi Speaker Surround,see page 13.5. Dolby Digital indicator light:This light turns on whenever aDolby Digital signal is detected atthe SPDIF input of the DTT2500Digital. For Dolby Digital 5.1sound reproduction, make sure onlythis light is illuminated.6. Dolby Surround: This buttoncycles between Dolby Pro Logicprocessing of the digital signal,then the analog input and no ProLogic processing.7. Audio Mode: Use this button toplay just the left or right channelsof a stereo digital signal (PCMfrom an audio CD, a Video CD or astereo signal from a DVD). Usethis when, for example, a Video CDhas different languages on the leftand right channels.

Repeated presses of the buttonselects which channel is fed to boththe Left and Right front speakers.LL -Left channel to both Left andRight front speakers.RR-Right channel program to bothLeft and Right front speakers. See“Audio Mode Selection”, page 13for further information about thisfeature.8. Speaker Test: Press this buttonto start the “test sound” generator.Use this test sound to position allthe speakers and to balance theirrelative output.

The test sound moves in sequencefrom the left satellite, the centerspeaker, the right satellite, then tothe right surround satellite, leftsurround satellite and thesubwoofer. All of the indicatorlights will blink on and off whilethe test sound generator is inoperation.

The test sound will operate forthree complete cycles and then stop.You can terminate the sound at anypoint by pressing the Speaker Testbutton again.

First use the test sound to verifythat each speaker is operating.

Top Row4. Creative Multi Speaker Sur-round: CMSS processes analogprogram material. Repeated presses ofthis button steps through fivedifferent operation modes.Music: Creates a 5.1 speakersoundfield appropriate for music fromany analog sound source.Movie: Creates a 5.1 speakersoundfield appropriate for movie orgame enjoyment from an analogsound source.FourPoint: Use this mode for DVDgames having Dolby Digitalsoundtracks with EnvironmentalAudio Extensions or Microsoft®

DirectSound®3D for real-timepositioning of sound effects.Stereo: Use this mode when you wantto hear just stereo effects or the stereoDolby Digital downmix of a DVD.

Decoder Amplifier FunctionsWhen the power is switched

“ON”, the green indicator lights onthe face of the Decoder Amplifierwill sequentially light from the leftto the right. The CMSS Music lightwill remain illuminated after start-up. The indicator light for DolbyDigital will illuminate automaticallyif a Dolby Digital program isplaying.

1. ON/OFF: Switches DeskTopTheater DTT2500 Digital power onand off.An indicator light signals the poweris on.

2. Master: Adjusts the volume ofthe entire system.

3. Center, Subwoofer andSurround: These controls adjust thelevel of the indicated channels. Theiroutput level should be balanced withthe fixed output level of the Left andRight front speakers.

A Quick Reference Guideis provided separately.Consult this guide foradvice about playingdifferent program sources.Slip it underneath theDecoder Amplifier forfuture use.

Connection to Sound BlasterLive! via Digital DIN


SPEAKER OUTPUTS

LINE IN REAR IN


15VDC IN

DIGITALDIN

ANALOG AUTO

INPUT

DVD OUTPUT(EXAMPLE: CREATIVE LABS

PC-DVD ENCORE Dxr2)SOUNDCARD OUTPUT

(EXAMPLE: SOUND BLASTER LIVE!)

DIGITALOUTPUT

REAROUT

LINEOUT

POWERSUPPLY

ADAPTER

RIGHT SURROUNDSATELLITE

RIGHT SATELLITE

LEFT SURROUNDSATELLITE

LEFT SATELLITECENTER CHANNELSPEAKER

SUBWOOFER

BLA

CK

GR

EE

N

Wiring Diagram

If your Sound Blaster Live! soundcard includes a Digital I/O card,you can take advantage of theclear, distortion-free audioavailable from its Digital DINoutput.1. Insert on end of the SPDIF cable

into the Digital DIN output jackon the Sound Blaster Live!Digital I/O card. The position ofthe Digital DIN connector on theDigital I/O card may be differentfrom this diagram. The DigitalDIN connector is the onlyconnector with a 9-pin configura-tion.

2. Insert the other end of the SPDIFcable into the Digital DIN inputon the decoder amplifier.

3. Use the following procedure toconfigure the Sound Blaster Live!sound card for four speakers:

• Bring your mouse pointer to the topof the monitor screen to display theCreative Launcher.

• Click on AudioHQ.• Click on the Speaker tab. The speaker dialog box will appear.• On the configuration tabbed page,

select the “4 Speakers” option.• A sofa icon (representing you)

appears in the center of the previewbox, with four speakers at the cornersof the box.

• In some versions of Sound BlasterLive! software, you can select the“four-speaker” output option in theEnvironment deck of the SurroundMixer application (located in theSound Blaster Live! program tab ofthe Creative Launcher).

Note: When the Analog/Auto switch ispushed towards the Auto side, thesignal at the Digital DIN input is givenpriority and the signal at the AnalogAudio inputs will be ignored. To listento a sound source through the analogaudio inputs, push the switch to theAnalog side.


SPEAKER OUTPUTS

LINE IN REAR IN


15VDC IN

DIGITALDIN

ANALOG AUTO

INPUTDigital DIN ConnectorDIGITAL I/O CARD

SPDIF CABLE

DTT3500 Digital Decoder Amplifier

DIGITAL DIN

Documents

DeskTop Theater™5.1 DTT2500 Digital Five Satellite/Subwoofer Speaker System With Dolby