Waudio EPX Series User manual

Order codes:
AMP24 - EPX 300
AMP25 - EPX 500
AMP26 - EPX 800
AMP27 - EPX 1200
AMP28 - EPX 2200
EPX Series
Power Ampliers
User Manual
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2
Safety advice
WARNING
FOR YOUR OWN SAFETY, PLEASE READ THIS USER MANUAL
CAREFULLY BEFORE YOUR INITIAL START-UP!
• Immediatelyuponreceivingthisproduct,carefullyunpackthecartonandcheckthecontents
toensurethatallthepartsarepresent.
• Beforeinitialstart-up,pleasemakesurethatthereisnodamagecausedduringtransportation.
• Shouldtherebeanydamage,consultyourdealeranddonotusetheequipment.
• Retainthecartonandallpackagingmaterials.
• Intheeventthattheequipmentmustbereturnedtothesupplier,itisimportantthat
theequipmentisreturnedintheoriginalcartonandpackaging.
• Tomaintaintheequipmentingoodworkingconditionandtoensuresafeoperation,
itisnecessaryfortheusertofollowthesafetyinstructionsandwarningnoteswritteninthismanual.
• Pleasenotethatdamagescausedbyusermodicationstothisequipmentarenotsubjecttowarranty.
IMPORTANT:
The manufacturer will not accept liability for any resulting damages caused by the non-observance
of this manual or any unauthorised modication to the equipment.
OPERATING DETERMINATIONS
Ifthisequipmentisoperatedinanyotherway,thanthosedescribedinthismanual,theproductmaysufferdamageand
thewarrantybecomesvoid.Incorrectoperationmayleadtodangere.g:short-circuit,burnsandelectricshocksetc.
Incaseofmalfunctionthisunitshouldbereturnedforserviceorinspection.
Donotendangeryourownsafetyandthesafetyofothers!
Incorrectinstallationorusecancauseseriousdamagetopeopleand/orproperty.
• Neverletthepowercablecomeintocontactwithother
cables.Handlethepowercableandallmainsvoltage
connectionswithcaution!
• Neverremovewarningorinformativelabelsfromthe
equipment.
• Donotopenormodifytheequipment.
• Donotconnectthisequipmenttoadimmer-pack.
• Donotswitchtheequipmentonandoffinshortintervals,
asthiswillreducethesystem’slife.
• Onlyusetheequipmentindoors.
• Donotexposetoammablesources,liquidsorgases.
• Alwaysdisconnectthepowerfromthemainswhen
equipmentisnotinuseorbeforecleaning!Onlyhandle
thepowercablebytheplug.Neverpullouttheplugby
pullingthepowercable.
• Makesurethattheavailablevoltage
isbetween220V/240V.
• Makesurethatthepowercableisnevercrimped
ordamaged.Checktheequipmentandthepower
cableperiodically.
• Iftheequipmentisdroppedordamaged,disconnect
themainspowersupplyimmediately.Haveaqualied
engineerinspecttheequipmentbeforeoperatingagain.
• Iftheequipmenthasbeenexposedtodrastictemperature
uctuation(e.g.aftertransportation),donotswitchiton
immediately.Thearisingcondensationmightdamagethe
equipment.Leavetheequipmentswitchedoffuntilithas
reachedroomtemperature.
• Iftheproductfailstofunctioncorrectly,discontinueuse
immediately.Packsecurely(preferablyintheoriginal
packingmaterial),andreturntoyourdealerforservice.
• Onlyusefusesofsametypeandrating.
• Repairs,servicingandpowerconnectionmustonlybe
carriedoutbyaqualiedtechnician.THISUNITCONTAINS
NOUSERSERVICEABLEPARTS.
• WARRANTY:Oneyearfromdateofpurchase.
CAUTION!
KEEP THIS EQUIPMENT
AWAY FROM MOISTURE,
RAIN AND LIQUIDS, AND
OUT OF DAMP/HUMID
ENVIRONMENTS
CAUTION!
TAKE CARE USING
THIS EQUIPMENT!
HIGH VOLTAGE-RISK
OF ELECTRIC SHOCK!!
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3
Product overview
Aprofessionalrangeofpower
ampliersofferingsuperiorreliability
andperformance,withafullrange
ofpoweroptionsavailabletosuita
varietyofapplications.
•Shortcircuit,overloadand
thermalprotection
•Fancooled
•Groundlift
EPX Series Power Ampliers
Specications EPX 300 EPX 500 EPX 800 EPX 1200 EPX 2200
Outputpower1kHz,
THD+N≤0.5%
Stereo8Ω 2x90W 2x180W 2x270W 2x400W 2x850W
Stereo4Ω 2x150W 2x250W 2x400W 2x600W 2x1100W
Bridge8Ω - - - 1200W 2200W
Frequencyresponse 20Hzto20kHz±1.0dB
Inputsensitivity 0.775V/1.0V/1.44V
S/Nratio(a-weighted,RMS) >95dB >100dB
>70dB
Crosstalkatratedpoweroutput
(8Ωat1kHz) >55dB >65dB
Dampingfactor(f=1kHz@8Ω) >60 >150dB >200
Protectioncircuits Thermal,shortcircuit,overload,DCfaultprotection
&ACpowersupplyfuse
Softstart,limit,thermal,shortcircuit,
overload,DCfaultprotection
&ACpowersupplyfuse
LEDindicators Power,protect&clip Power,protect,clip,stereo,parallel&bridge
Connectors Inputs:2xphonosockets,2x1/4”jacksockets
Outputs:2xlockingspeakerconnectors,2xbindingposts
Inputs:2xXLRsockets,2x1/4”jacksockets
Outputs:2xlockingspeakerconnectors,
2xbindingposts,1xlockingspeaker
bridgeconnector
Coolingsystem Low-noisecoolingfans,variablespeedfan
Powersupply AC240V/50Hz
Dimensions(HxWxD) 87x481x297mm 87x481x297mm 87x481x297mm 87x481x450mm 87x481x450mm
Weight 9.5kg 10kg 10.5kg 18kg 21kg
Ordercode AMP24 AMP25 AMP26 AMP27 AMP28
Inthebox:
1 x power amplier,
1 x power cable
& 1 x user manual
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EPX 300, EPX 500 &
EPX 800 dimensions
EPX 1200 &
EPX 2200 dimensions
Product overview
481mm
87mm 264mm
297mm
426mm
481mm
87mm 421mm
450mm
426mm
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EPX 300, EPX 500 & EPX 800 front panel
EPX 300, EPX 500 & EPX 800 rear panel
Technical specications
01-ClipLEDs-TheseLEDsashredtoindicatewhenthe
outputoftheamplierhasreachedthemaximum,andis
rightontheedgeofclipping.Clippingisbadforspeakers
andshouldbeavoided.ItisokayiftheLEDblinks
occasionally.Itmeansthatthetransientpeaksofthe
musicarejusthittingthefulloutputoftheamplier.
02-Gaincontrol-Thesetwoknobscontrolthelevelsof
Channels1and2.Usually,thesecontrolsaresetall
thewayup.Youmightturnthemdownslightlyifyou
havehigh-efciencyspeakers.Also,youcouldusethem
tocontrolthelevelofline-levelsourcessuchasaCD
playerconnecteddirectlytotheamplierwithouta
pre-amplierormixer.Afteryouhavesetthelevels
forthemixer(orothersignalsource),adjustthelevel
controlsontheamplierasthenaladjustmenttoset
theoverallvolumeforthesystem.
Instereoandmonomode,usebothlevelcontrolsto
controlthelevelsgoingtoeachspeaker.
03-PowerLED-ThisLEDilluminateswhentheamplier
isswitchedon
04-ProtectLED-IfthisLEDisilluminatedduringoperation,
oneoftheprotectioncircuitsisactive.Pleasetakethe
amplieroutofoperationandhaveittested
05-Powerswitch-Pressthisswitchtostarttheoperation
POWER
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CH A CH B
01 0205 02
0304
01
INPUTS
GROUNDLIFT
LIFT GND
B A
RIGHT LEFT
POWER AMPLIFIER
240V~50Hz
Serial no.
CAUTION!
Remove the mains power before opening
the unit. No user serviceable parts inside,
refer to qualied service personnel.
Protect the unit against moisture and heat.
Operating temperature range 0-40°C.
This product is not intended for use
other than stated.
MAINS
T3.15 A
240V~50Hz
!
OUTPUTS
(4Ω min.)
01-¼”jackinputs-Theseinputsallowyoutoconnect
¼”unbalancedjackplugs
02-Phonoinputs-Theseinputsallowyoutoconnect
unbalancedphonoplugs
03-Therearethreewaysofconnectingyourspeakers:
Lockingspeakerconnectors,¼”jackorbindingposts.
Theconnectorsarewiredinparallel.(e.g.Channel1
bindingpost,jackandlockingspeakerconnectorsarein
parallelandthesameforchannel2).
04-Powercablesocket-Thisiswhereyouconnectthe
detachablepowercable.Connecttheotherendtoa
240VACoutlet.
05-Groundliftswitch-Thisswitchallowsthesignalground
orchassisgroundtobeseparatedincaseofaground
conict.Forthehighestsafetyoftheequipment,itis
recommendedtokeepthe“groundliftswitch”inthe
GNDposition.Incaseofagroundconictpleasesetthe
groundliftswitchtoGNDLIFT.
0201 01 040305
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Technical specications
EPX 1200 & EPX 2200 front panel
01-ClipLEDs-TheseLEDsashredtoindicatewhenthe
outputoftheamplierhasreachedthemaximum,andis
rightontheedgeofclipping.Clippingisbadforspeakers
andshouldbeavoided.ItisokayiftheLEDblinks
occasionally.Itmeansthatthetransientpeaksofthe
musicarejusthittingthefulloutputoftheamplier.
02-Gaincontrol-Thesetwoknobscontrolthelevelsof
Channels1and2.Usually,thesecontrolsaresetallthe
wayup.Youmightturnthemdownslightlyifyouhave
high-efciencyspeakers.Also,youcouldusethemto
controlthelevelofline-levelsourcessuchasaCDplayer
connecteddirectlytotheamplierwithouta
pre-amplierormixer.Afteryouhavesetthelevels
forthemixer(orothersignalsource),adjusttheLevel
controlsontheamplierasthenaladjustmenttoset
theoverallvolumeforthesystem.
Instereoandmonomode,usebothlevelcontrolsto
controlthelevelsgoingtoeachspeaker.Inbridged
mode,turnthechannel2levelcontroldown,andjust
usethechannel1control.
03-PowerLED-ThisLEDilluminateswhentheamplier
isswitchedon
04-ProtectLED-IfthisLEDisilluminatedduringoperation,
oneoftheprotectioncircuitsisactive.Pleasetakethe
amplieroutofoperationandhaveittested
05-StereoLED-Thisilluminatesinstereomode
06-BridgedLED-Thisilluminatesinbridgedmode
07-ParallelLED-ThisLEDilluminatesinparallelmode
08-Powerswitch-Pressthisswitchtostarttheoperation
POWER
CLIPCLIP
POWER
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BR PRST
CH A CH B
01 0208 02
0403
01
0605 07
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EPX 1200 & EPX 2200 rear panel
!
POWER
AMPLIFIER
240V~50Hz
Serial no.
CAUTION!
Remove the mains power before
opening the unit. No user serviceable
parts inside, refer to qualied service personnel.
Protect the unit against moisture and heat.
Operating temperature range 0-40°C.
This product is not intended for use
other than stated.
OUTPUTS
CH-B
OUTPUTS
CH-A
OUTPUT
BRIDGE
T10.0 A
240V~50Hz
MAINS
GROUNDLIFT
LIFT GND
LIMITER
ON OFF
PR STBR
LOWHIGH BYPA SS LOWHIGH BY PASS
INPUTS
CH-B
LINK
CH-B
LINK
CH-A
INPUTS
CH-A
01-XLRinputs-Theseinputsallowyoutoconnectbalanced
XLRplugs.Thesearewiredwithpin2hot,pin3coldand
pin1ground
02-¼”jackinputs-Theseinputsallowyoutoconnect¼”
unbalancedjackplugs
03-Therearetwowaysofconnectingyourspeakers:
Lockingspeakerconnectorsorbindingposts.
Theconnectorsarewiredinparallel.(e.g.Channel1
bindingpostandlockingspeakerconnectorsarein
parallelandthesameforchannel2).
Whentheamplierisusedinbridgedmonomodeuse
eithertheoutputbridgedlockingspeakerconnectorsor
thetworedbindingposts.
04-Lockingpowersocket-Thisiswhereyouconnectthe
detachablelockingpowercable.Connecttheotherend
toa240VACoutlet.
05-Ampmode-Thisswitchdeterminestheinputsignal
routingwithintheamplier.Formostapplicationsstereo
willbeused.
Stereo:Thisisthenormalmodeforamplifyingstereo
signals.Itacceptsleftandrightinputsandroutesthem
totheleftandrightoutputs.
Parallel:Thismodeisusedwhenyouwanttosend
monosignalstobothoutputs.Itacceptsasingleinput
intochannel1androutesittoboththechannel1and
channel2outputs.Eachchannelslevelcontroladjusts
thegainforeachchannel.
Bridge:Thismodeacceptsasingleinputintochannel1
andusesbothamplieroutputstodoublethepowerto
onespeakeroutput.Usechannel1levelcontroltoadjust
thegain.Turnchannel2levelcontroltominimum.
06-Whenengagedthelimiterswitchprotectsyour
speakersfromtheeffectsofclipping.Itisdesignedto
bevirtuallytransparentandyoushouldhearverylittle
audibledifference.Itisrecommendedthatyoualways
havethisswitchactiveunlessyouareusingexternal
compressor/limiters.
07-Groundliftswitch-Thisswitchallowsthesignalground
orchassisgroundtobeseparatedincaseofaground
conict.Forthehighestsafetyoftheequipment,itis
recommendedtokeepthe“groundliftswitch”inthe
GNDposition.Incaseofagroundconictpleaseset
thegroundliftswitchtoGNDLIFT.
08-ThesebalancedXLRoutputscanbeusedtoloop
throughthesignaltoadditionalpowerampliers.
09-Crossover:Fornormaloperationsetthemodeswitchto
Bypass.Low/HighPassMode:Whenusingthe“Low/
HighPassMode”,theampliercanbeconguredfor
HighPassorLowPassoperation.
04 03
02 0909 010808 0506 070102
Technical specications
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Operating instructions
Rack installation
TheEPSeriesisbuiltfor19”racks.Therackyouuseshouldbea‘doubledoorrack’whereyoucanopen
thefrontandrearpanel.Whenmountingtheamplierintotherack,pleasemakesurethatthereis
enoughspacearoundtheamplier.
Becarefulwhenmountingtheamplierintotherack.Puttheheaviestproductsintothelowerpart
oftherack.Beawarethatfasteningtheamplierwithfourscrewsonthefrontpanelisnotenough.
Iftheracksarebeingtransportedorusedformobileuse,additionallyfastentheproductsby
connectingtherearbracketswiththesideorgroundbarsoftherack.Inthisway,theamplier
cannotbepushedbackwards.Thefrontpanelisnotdesignedtoabsorbaccelerationforces
occuringduringtransportation.
Inputs
Shortcablesrunsimprovethesoundqualityremarkably.Inputcablesshouldbeshortanddirect,
sincehighfrequencieswillmostlybeabsorbedifthecablesareunnecessarilylong.Besidesthata
longercablemayleadtohummingandnoiseproblems.Ifthecablerunsareunavoidable,youshould
usebalancedcables.
Outputs
Thehighdampingfactorofyourampliersuppliesaclearsoundreproduction.
Unnecessarilylongandthincableswillinuencethedampingfactorandthusthelowfrequencies
inanegativeway.Inordertosafeguardgoodsoundquality,thedampingfactorshouldliearound50.
Thelongeracablehastobethethickeritshouldbe.
ConnectyourspeakersystemsviathelockingspeakerconnectorsortheBannana/Screwcombination
(red+,black-)
Connection to the mains
Connecttheamplieronlyafterhavingmadesurethatthecorrectvoltage(240V)issuppliedandthat
thegroundcableisearthed.ThisproductfallsunderClass1.Donotdetachthegroundcable.
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Operating instructions
Operation
Afterhavingconnectedyourampliertothemains,turnbothgaincontrolscounterclockwisetothe
“min”position.Thelastproducttobeswitchedonisamplier.The“ON”and“PROTECT”LEDlightsup
now.Ifitdoesnot,checkiftheamplierisconnectedtothemainscorrectly.
Aftertheturnondelaythespeakersareactivated(PROTECT-LEDisoff).
Afterhavingsetthevolumecontrolsofthepre-ampliertothe“OFF”position,turnthegaincontrolsof
yourampliertomid-position.NowadjustthevolumewiththegaincontrolsCHAandCHB.
Allimportantoperatingmodesoftheamplierarearrangedonthefrontpanel.
Ifyouwanttoswitchoffthesystem,switch off the amplier rstinordertoavoid
acousticshocksonthespeakers.
Problem Chart
-20dBto30dB -Outputlevel
Clip   -Shortcircuitorimpedancetooloworsignaldistorted
Protect  -Activeduringstabilisationperiodafterswitchingonorwhenone 
   oftheprotectivecircuitsisactivated
Problem Cause Solution
Nopower Thepowercableisnotconnected Checkthepowercableandanyextensioncables
Nosound
Thepowercableoftherespectiveproductis
notconnectedcorrectlyornotatall.
Checkthepowercableandiftheplugsareproperly
connectedwiththesockets
Theconnectionsocketortheplugisdirty Cleanthesocketand/ortheplug
Noise Theinputsignalistoostrong Reducetheinputsignalviathegaincontrol
Fandoesnotwork,
LEDsdonotlightup Thepowercableisnotconnected Connectthepowercable
ProtectLEDlights
uppermanently
DCvoltageoninput Switchamplieroffandhavetheproductchecked
byaservicetechnician
Amplieroverheatsduetoobstruction Cleanthefangrill
Impedanceofspeakerstoolow Ensureminimum4Ωload
Shortcircuitinspeakerconnection
orinspeakers Checkspeakersandconnections
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Operating instructions
Cleaning and Maintenance
Werecommendafrequentcleaningoftheproduct.Pleaseuseasoftlintfreeandmoistenedcloth.
Neverusealcoholorsolvents.
Therearenoserviceablepartsinsidetheproductexceptforthefuse.Maintenanceandservice
operationsareonlytobecarriedoutbyauthoriseddealers.
Replacing the fuse
Onlyreplacethefusewithafuseofthesametypeandrating.
Beforereplacingthefuse,unplugthemainscable.
Procedure:
Step 1:Openfuseholderontherearpanelwithascrewdriver.
Step 2:Removetheoldfusefromthefuseholder.
Step 3:Installthenewfuseinthefuseholder.
Step 4:Replacethefuseholderinthehousing.
Shouldyouneedanyspareparts,pleaseusegenuineparts.
Shouldyouhaveanyfurtherquestions,pleasecontactyourdealer.
CAUTION! - DANGER TO LIFE
DISCONNECT FROM THE MAINS BEFORE
STARTING MAINTENANCE OPERATION
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WEEE notice
Correct Disposal of this Product
(Waste Electrical & Electronic Equipment)
(Applicable in the European Union and other European countries
with separate collection systems)
Thismarkingshownontheproductoritsliterature,indicatesthatitshouldnotbedisposedof
withotherhouseholdwastesattheendofitsworkinglife.Topreventpossibleharmtothe
environmentorhumanhealthfromuncontrolledwastedisposal,pleaseseparatethisfromother
typesofwastesandrecycleitresponsiblytopromotethesustainablereuseofmaterialresources.
Householdusersshouldcontacteithertheretailerwheretheypurchasedthisproduct,ortheir
localgovernmentofce,fordetailsofwhereandhowtheycantakethisitemforenvironmentally
saferecycling.
Businessusersshouldcontacttheirsupplierandcheckthetermsandconditionsofthe
purchasecontract.Thisproductshouldnotbemixedwithothercommercialwastesfordisposal.
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