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Professional Amplifiers

DW-Series AmplifiersOPERATING MANUAL AND USER GUIDE

OPERATING MANUAL AND USER GUIDE

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1. ImportantWarnings&SafetyInformation........................................... 2

2. Introduction......................................................................................... 3

3. About The DW Series Amplifiers......................................................... 3

4. Features.............................................................................................. 3

5. FrontPanel......................................................................................... 4

6. RearPanel......................................................................................... 5

7. Wiring.................................................................................................. 6

8. PoweringUp....................................................................................... 6

9. InputTrimValues................................................................................ 6

10.DimensionalDrawings........................................................................ 7

11. WiringDiagram................................................................................... 8

12. Specifications...................................................................................... 9

13.Warranty............................................................................................ 10

TABLE OF CONTENTS

DW Series

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IMPORTANT WARNINGS & SAFETY INSTRUCTIONS1. Pleasereadandretainthesesafetyinstructions.2. Heedallwarningsintheoperatinginstructionsandontheappliance.3. Donotusethisapparatusnearwaterormoisture.4. Cleanonlywithadrycloth.5. Installinagoodquality19"equipmentrack.6. Donotinstallnearsourcesofheatsuchasradiators,heatregisters,stovesorotherapparatus

thatproduceheat.7. Referallservicingtoauthorisedpersonnel.8. Therearenouserserviceablepartsinsidethisproduct.Usersshouldnotattempttoservicethis

product. Warranty nullification could result if this is attempted. 9. Servicing is requiredwhen theapparatushasbeendamaged inanyway including: Impact

damage,powercord/supplydamage, liquidspillages,smallobjects falling into theunitorexposuretomoisture.Inadditionpleaserefertoauthorisedservicepersonneliftheapparatusisnotoperatingnormally.

10. Tocompletelydisconnect thisequipment fromtheACmainsdisconnect thepowerplugfromtheACreceptacle.

11. To prevent fire never place the unit near any naked flame such as a candle. 12. Donotdefeat thepurposeof thepolarizedorgrounding typeplug.Apolarizedplughas

twobladeswithonewider thantheother.Agroundingtypeplughastwobladesanda thirdgroundingprong.Thewidebladeorthethirdprongarethereforyoursafety.If theplugdoesnot fit into your outlet, consult an electrician for replacement of the obsolete outlet.

13. USINGAMPLIFIERS–Inordertoavoiddamagetodriversandotherequipment,itisadvisabletoestablishandfollowaroutineforpoweringupandpoweringdownasoundsystem.Withallsystemcomponentsconnected, turnonsourceequipment(mixers,signalprocessors,recordand playback units, etc.) BEFORE powering up amplifiers. Transient voltages from powering up source equipment can damage speakers if amplifiers are already turned on. Make sure that amplifier volumes are set to their minimum settings and power up any system amplifiers LAST. It is recommended thatallsystemcomponentsbeallowed tostabilize forseveralsecondsbeforeanysourcesignalsareintroducedorlevelsettingadjustmentsaremade.Similarly,whenshuttingsystemsdown, turnallamplifiersoff first,beforepoweringdownanyothersystemcomponents.

14. CABLES – Do not use shielded or microphone cables for connection between amplifiers and speakers.Useonlyapprovedspeakercableswithproperconnectors.

15. RIGGING–SUSPENDING–MOUNTING–Rigging,suspendingandmountingofspeakersystemscanexposemembersof thepublic toserioushealthrisksandevendeath.UNDERNOCIRCUMSTANCESATTEMPTTORIG,SUSPENDOROTHERWISEMOUNTSOUNDREINFORCEMENTPRODUCTSUNLESSYOUAREFULLYQUALIFIEDANDCERTIFIEDTODOSOBYRELEVANTLOCAL,STATEANDNATIONALAUTHORITIES.ALLRELEVANTSAFETYREGULATIONSMUSTBEFOLLOWED.IFYOUARENOTPROPERLYQUALIFIEDORDONOTKNOWOFPERTINENTREGULATIONS,CONSULTQUALIFIEDPERSONNELFORADVICE.

16. CAUTION–Professionalsoundreinforcementsystemsarecapableofgeneratingveryhighsoundpressurelevels.Takecarewithplacementandoperationtoavoidexposuretoexcessivevolumelevels.Permanenthearingdamagecanresultwhenoperatedtoextremelevels.

OPERATING MANUAL AND USER GUIDE

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TheWharfedaleProDW-Seriespoweramplifiersaredesignedandconstructed to thehigheststandards.Wewishtothankyouforentrustinguswithyoursound.

PleasetakeafewminutestoreadthroughthismanualtoensureyougetthemostfromyourDW-Series amplifier.

INTRODUCTION

The DW-Series of professional sound reinforcement power amplifiers are designed for high volume andqualitysoundreproduction indemandingapplications.Housed inaruggedyetportable2UrackmountchassistheDW-Seriesisroad-readyandcanhandleawiderangeofapplications.

TheextensivefeaturelistincludesdualmonoandbridgedmonomakingtheDW-Seriesaversatilecontenderandensuringcompatibilitywiththebroadestrangeof tasks.SimpleyeteffectivestatusindicatorsmaketheDW-Seriestheobviouschoiceforthebusylivesoundprofessionalthatneedsano-nonsense approach to amplification.

The DW Series are fan cooled with filtered air intakes on the front panel, hot air is expelled from the rearoftheunit.Theairintakesarefoamlinedandcanbevacuumcleanedfromthefrontoftheunitto remove dirt and dust and ensure optimum airflow.

Eachchannelhas independentcontrolover input trimwithsignalandpeak indicators.StatusindicatorsmakeyouawareofofACpowersupply,bridgemodeand thestatusof theonboardprotectionsystem.

TherearpanelhasXLRinputswith throughoutputs forparallelwiringofadditionalpowerampswhilethemainoutputsuseSpeakon™connectorsforquickinstallationandguaranteeddurability.

ABOUT THE DW-SERIES AMPLIFIERS

FEATURES♦ Switchablestereoandbridgedmodes

♦ Individualchannelinputtrimcontrols

♦ XLRinputswiththroughoutputs

♦ Speakon™mainoutputs

♦ Power,Protect,Bridge,SignalandPeakindicators

♦ Fancooledwithfrontpanelmountedfilters

♦ IECmainsinputreceptacle

♦ Roadready2Urackmountchassis

DW Series

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FRONT PANEL

PowerSwitch-Togglesthepoweronandoff

ProtectLED-Lightsupfor3secondswhentheunitispoweredup,afterthisstartupperiod it isusedto indicate thatprotection isbeingprovided.Causesfor illuminationof the faultLEDcan includeoverheatingof theheatsinkorDCvoltageattheoutputs.Whentheproblemiscorrectedtheindicatorshouldswitchoffandnormaloperationwillresume.

PeakLED-Lightsuporangewhentheoutputsignaldistortionrisesabove1%,indicating that the level is toohigh.Toavoidoverheatingordamageassessyourgainstructure.

SignalLED - Illuminates toshowsignalactivityabove -35dBat the inputstage.Ifthereisnoilluminationcheckyourinputs(includingthepowersupply!)andsourcedevices.

PowerLED-WiththepowerswitchsettoontheLEDwillilluminate.IfthereisnoactivitychecktheACsupply.

GainControls -Turnclockwise to increasegainandcounterclockwise todecrease.

OPERATING MANUAL AND USER GUIDE

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MainsPower -Takecaretoensurethevoltageselectorshowsthecorrectmainsvoltageforyourlocalmainssupplyattheinstallationsite.Anappropriatemainscordisincludedintheoriginalpackaging,ifthisisnotthecasecontactyourdealer.

Audio inputs/outputs -The main XLR input connectors should beconnectedtotheoutputsofyourmixingconsole.TheXLRoutputsaredesignedto through-connectadditionalamplifiers inparallel, permanentelectricalconnectionismaintainedregardlessofthepowerswitchsetting.

Bridgedmodeconnections

Whenselecting theoutputmodealwaysmakesure that theamplifier ispowereddowntominimizetheriskofanyunwantedtransientvoltagesthatcandamagespeakersandhearing.

Stereomode -allowsbothchannels tooperate independentlywith thesourcematerialamplifiedaccording to the input trimandoutputted fromthecorrespondingoutputconnector.

Bridgedmonomode-thisallowstheamptobeusedasasinglechannelamplifier with increased power when compared to normal stereo operation.

Theminimum impedanceofa single load ishigher inbridgedmode, forexample the amplifier should not operate with a load less than 2 ohms in stereo modeor4ohmsinbridgedmonomode.

Groundliftswitching -Usetheground liftswitch ifyouareexperiencingearth loop issues,aswithall therearpanelswitchingensure that theunit issafelypowereddownbeforetheswitchisused.

REAR PANEL

DW Series

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WIRINGConnectingsourceswithunbalancedoutputsrequiresbridgingPIN1andPIN3ofthepowerampsinputconnectorsorremovingPIN3,ifthisisnotdonehumandHFinterferencemayoccur.

Useofhighqualitybalancedcables(with2conductors foraudiosignalplusseparateshielding)is recommendedasmostmixingconsoleshavebalancedoutputs.This typeof interconnectwillgreatlyreducethechanceofinterference,noiseorhum.

ObservethetableabovetheSpeakon™outputsthatshowsthecorrectterminalconnectionfortherespectiveoutputmodes.WhenconnectingSpeakon™cablesensurethattheyaresecurelylockedintoplacebyturningclockwise,andensurethatthecablesarefullyunlockedbeforeyouattempttoremovethem.

POWERING UPTheDWSeriesissimpletoinstallandoperate.

WhenpoweringupyourDW-Seriesamplifiermakesure that the input trimcontrols forbothchannelsareat the lowestpossiblesetting.Alwaysensure thatyouestablishasafe routine topower up all of the stages in your rig, starting from source through to amplifier.

Transientvoltagesfrompoweringupsourceequipmentcandamageyourspeakersandhearingif your amplifiers are already turned on. Always ensure that the system amplifiers are powered up last.

INPUT TRIM VALUES Withinputtrimsettingsbelow4youwillnotbeabletoachievefulloutputpowerwithoutclippingtheinputstages.

Volume

109876543210

FullratedpowerTHD+N=0.5%

+1dBu+4dBu+8dBu

+12dBu+16dBu+19dBu+21dBu

>+22dBu>+22dBu>+22dBu

-----

FullratedpowerTHD+N=1%

+4dBu+6dBu

+10dBu+15dBu+20dBu+22dBu

>+22dBu>+22dBu>+22dBu>+22dBu

-----

InputLevel(dBu)

OPERATING MANUAL AND USER GUIDE

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DIMENSIONAL DRAWINGS

DW Series

WIRING DIAGRAM

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MixerOutput

Mixer

Microphone

LoudspeakerALoudspeakerB

AmplifierOutput

DW-SeriesProfessionalAmplifier

OPERATING MANUAL AND USER GUIDE

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SPECIFICATIONS

8ohm

2x230W

650W

4ohm

2x330W

800W

2ohm

2x340W

-----

8ohm

2x450W

1250W

4ohm

2x620W

1600W

2ohm

2x800W

-----

8ohm

2x590W

1800W

4ohm

2x910W

2400W

2ohm

2x1200W

-----

Model

LoadImpedance

Ratedoutputpower

Maximumbridgedoutput

power(THD<1%,1KHz)

MaximumRMSvoltage

swing(THD=1%,1KHz)

Slewrate(at1KHz)

Currentconsumption

(at1/8maximumoutput

power)

Inputsenstitivity

(atratedoutput

power,1KHz)

THDatratedoutputpower

IMD-SMPTE(60Hz,7KHz)

DIM30(3.15KHz,15KHz)

Crosstalk(ref.1KHz,at10%

ratedoutputpower)

Frequency

response(ref.1KHz)

Inputimpendance

(20Hz-20KHz,balanced)

Dampingfactor

(at100Hz/1KHz8Ω)

Signaltonoiseratio

(Aweighted)

Powerrequirements

Protection

Cooling

Dimensions(WxDxH)

Netweight

Grossweight

42.8V

32V/us

60V

42V/us

68.7V

50V/us

220W 334W 380W 280W 400W 600W 380W 610W 935W

1.0V

<0.1%

<0.1%

<0.1%

<-80dB

20Hz-20kHz(0~2dB)

20kΩ / balanced,

10kΩ / unbalanced

>350

105dB

1.0V

<0.1%

<0.1%

<0.1%

<-80dB

20Hz-20kHz(0~2dB)

20kΩ / balanced,

10kΩ / unbalanced

>450

106dB

AC~230V50Hz-60Hz

1.0V

<0.1%

<0.1%

<0.1%

<-80dB

20Hz-20kHz(0~2dB)

20kΩ / balanced,

10kΩ / unbalanced

>450

106dB

Audiolimiters,thermaloverload,shortcircuit

Front-to-rear

483x380x88mm

17.5kg

19kg

483x380x88mm

19.5kg

21kg

483x380x88mm

21.5kg

23kg

DW800 DW1600 DW2400

DW Series

WharfedaleProDWSeriesproductsarewarrantedofmanufacturingormaterialdefects foraperiodofoneyearfromtheoriginaldateofpurchase.Intheeventofmalfunction,contactyourauthorizedWharfedaleProdealerordistributorforinformation.

*Beaware thatwarrantydetailsmaydiffer fromcountry tocountry.Contactyourdealersordistributorforinformation.Thesetermsdonotinfringeyourstatutoryrights.

WHARFEDALE PRO LIMITED WARRANTY

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WharfedaleProfessionalIAGHOUSE,SovereignCourt,ErmineBusinessParkHuntingdon,Cambs,PE296XU,England

www.wharfedalepro.comWharfedale Professional reserves the right to alter or improve specifications without notice.Allrightsreserved©2010WharfedalePro.WharfedaleProisamemberoftheIAGGroup.