epx series power amplifiers - farnell element14 · epx series power amplifiers user manual power...

Order codes: AMP24 - EPX 300AMP25 - EPX 500AMP26 - EPX 800

AMP27 - EPX 1200AMP28 - EPX 2200

EPX Series Power Amplifiers

User Manual

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www.prolight.co.uk EPX Series Power Amplifiers User Manual 2

Safety advice

WARNINGFOR YOUR OWN SAFETY, PLEASE READ THIS USER MANUAL CAREFULLY BEFORE YOUR INITIAL START-UP!• Immediatelyuponreceivingthisproduct,carefullyunpackthecartonandcheckthecontents

toensurethatallthepartsarepresent.

• Beforeinitialstart-up,pleasemakesurethatthereisnodamagecausedduringtransportation.

• Shouldtherebeanydamage,consultyourdealeranddonotusetheequipment.

• Retainthecartonandallpackagingmaterials.

• Intheeventthattheequipmentmustbereturnedtothesupplier,itisimportantthattheequipmentisreturnedintheoriginalcartonandpackaging.

• Tomaintaintheequipmentingoodworkingconditionandtoensuresafeoperation,itisnecessaryfortheusertofollowthesafetyinstructionsandwarningnoteswritteninthismanual.

• Pleasenotethatdamagescausedbyusermodificationstothisequipmentarenotsubjecttowarranty.

IMPORTANT:The manufacturer will not accept liability for any resulting damages caused by the non-observance of this manual or any unauthorised modification to the equipment.

OPERATING DETERMINATIONSIfthisequipmentisoperatedinanyotherway,thanthosedescribedinthismanual,theproductmaysufferdamageandthewarrantybecomesvoid.Incorrectoperationmayleadtodangere.g:short-circuit,burnsandelectricshocksetc.

Incaseofmalfunctionthisunitshouldbereturnedforserviceorinspection.

Donotendangeryourownsafetyandthesafetyofothers!

Incorrectinstallationorusecancauseseriousdamagetopeopleand/orproperty.

• Neverletthepowercablecomeintocontactwithothercables.Handlethepowercableandallmainsvoltageconnectionswithcaution!

• Neverremovewarningorinformativelabelsfromtheequipment.

• Donotopenormodifytheequipment.

• Donotconnectthisequipmenttoadimmer-pack.

• Donotswitchtheequipmentonandoffinshortintervals,asthiswillreducethesystem’slife.

• Onlyusetheequipmentindoors.

• Donotexposetoflammablesources,liquidsorgases.

• Alwaysdisconnectthepowerfromthemainswhenequipmentisnotinuseorbeforecleaning!Onlyhandlethepowercablebytheplug.Neverpullouttheplugbypullingthepowercable.

• Makesurethattheavailablevoltageisbetween220V/240V.

• Makesurethatthepowercableisnevercrimpedordamaged.Checktheequipmentandthepowercableperiodically.

• Iftheequipmentisdroppedordamaged,disconnectthemainspowersupplyimmediately.Haveaqualifiedengineerinspecttheequipmentbeforeoperatingagain.

• Iftheequipmenthasbeenexposedtodrastictemperaturefluctuation(e.g.aftertransportation),donotswitchitonimmediately.Thearisingcondensationmightdamagetheequipment.Leavetheequipmentswitchedoffuntilithasreachedroomtemperature.

• Iftheproductfailstofunctioncorrectly,discontinueuseimmediately.Packsecurely(preferablyintheoriginalpackingmaterial),andreturntoyourdealerforservice.

• Onlyusefusesofsametypeandrating.

• Repairs,servicingandpowerconnectionmustonlybecarriedoutbyaqualifiedtechnician.THISUNITCONTAINSNOUSERSERVICEABLEPARTS.

• WARRANTY:Oneyearfromdateofpurchase.

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!!


Product overview

Aprofessionalrangeofpoweramplifiersofferingsuperiorreliabilityandperformance,withafullrangeofpoweroptionsavailabletosuitavarietyofapplications.

•Shortcircuit,overloadandthermalprotection

•Fancooled

•Groundlift

EPX Series Power Amplifiers

Specifications EPX 300 EPX 500 EPX 800 EPX 1200 EPX 2200

Outputpower1kHz,THD+N≤0.5%

Stereo8Ω 2x90W 2x180W 2x270W 2x400W 2x850W

Stereo4Ω 2x150W 2x250W 2x400W 2x600W 2x1100W

Bridge8Ω - - - 1200W 2200W

Frequencyresponse 20Hzto20kHz±1.0dB

Inputsensitivity 0.775V/1.0V/1.44V

S/Nratio(a-weighted,RMS) >95dB>100dB

>70dBCrosstalkatratedpoweroutput(8Ωat1kHz)

>55dB >65dB

Dampingfactor(f=1kHz@8Ω) >60 >150dB >200

ProtectioncircuitsThermal,shortcircuit,overload,DCfaultprotection

&ACpowersupplyfuse

Softstart,limit,thermal,shortcircuit,overload,DCfaultprotection

&ACpowersupplyfuse

LEDindicators Power,protect&clip Power,protect,clip,stereo,parallel&bridge

ConnectorsInputs:2xphonosockets,2x1/4”jacksockets

Outputs:2xlockingspeakerconnectors,2xbindingposts

Inputs:2xXLRsockets,2x1/4”jacksocketsOutputs:2xlockingspeakerconnectors,2xbindingposts,1xlockingspeaker

bridgeconnector

Coolingsystem Low-noisecoolingfans,variablespeedfan

Powersupply AC240V/50Hz

Dimensions(HxWxD) 87x481x297mm 87x481x297mm 87x481x297mm 87x481x450mm 87x481x450mm

Weight 9.5kg 10kg 10.5kg 18kg 21kg

Ordercode AMP24 AMP25 AMP26 AMP27 AMP28

Inthebox:1 x power amplifier, 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

297

mm

426mm

481mm

87mm

421

mm

450mm

426mm


EPX 300, EPX 500 & EPX 800 front panel

EPX 300, EPX 500 & EPX 800 rear panel

Technical specifications

01-ClipLEDs-TheseLEDsflashredtoindicatewhentheoutputoftheamplifierhasreachedthemaximum,andisrightontheedgeofclipping.Clippingisbadforspeakersandshouldbeavoided.ItisokayiftheLEDblinksoccasionally.Itmeansthatthetransientpeaksofthemusicarejusthittingthefulloutputoftheamplifier.

02-Gaincontrol-ThesetwoknobscontrolthelevelsofChannels1and2.Usually,thesecontrolsaresetallthewayup.Youmightturnthemdownslightlyifyouhavehigh-efficiencyspeakers.Also,youcouldusethemtocontrolthelevelofline-levelsourcessuchasaCDplayerconnecteddirectlytotheamplifierwithoutapre-amplifierormixer.Afteryouhavesetthelevels

forthemixer(orothersignalsource),adjustthelevelcontrolsontheamplifierasthefinaladjustmenttosettheoverallvolumeforthesystem.Instereoandmonomode,usebothlevelcontrolstocontrolthelevelsgoingtoeachspeaker.

03-PowerLED-ThisLEDilluminateswhentheamplifierisswitchedon

04-ProtectLED-IfthisLEDisilluminatedduringoperation,oneoftheprotectioncircuitsisactive.Pleasetaketheamplifieroutofoperationandhaveittested

05-Powerswitch-Pressthisswitchtostarttheoperation

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INPUTS

GROUNDLIFT

LIFT GNDB 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”jackinputs-Theseinputsallowyoutoconnect¼”unbalancedjackplugs

02-Phonoinputs-Theseinputsallowyoutoconnectunbalancedphonoplugs

03-Therearethreewaysofconnectingyourspeakers:Lockingspeakerconnectors,¼”jackorbindingposts.Theconnectorsarewiredinparallel.(e.g.Channel1bindingpost,jackandlockingspeakerconnectorsareinparallelandthesameforchannel2).

04-Powercablesocket-Thisiswhereyouconnectthedetachablepowercable.Connecttheotherendtoa240VACoutlet.

05-Groundliftswitch-Thisswitchallowsthesignalgroundorchassisgroundtobeseparatedincaseofagroundconflict.Forthehighestsafetyoftheequipment,itisrecommendedtokeepthe“groundliftswitch”intheGNDposition.IncaseofagroundconflictpleasesetthegroundliftswitchtoGNDLIFT.

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EPX 1200 & EPX 2200 front panel

01-ClipLEDs-TheseLEDsflashredtoindicatewhentheoutputoftheamplifierhasreachedthemaximum,andisrightontheedgeofclipping.Clippingisbadforspeakersandshouldbeavoided.ItisokayiftheLEDblinksoccasionally.Itmeansthatthetransientpeaksofthemusicarejusthittingthefulloutputoftheamplifier.

02-Gaincontrol-ThesetwoknobscontrolthelevelsofChannels1and2.Usually,thesecontrolsaresetallthewayup.Youmightturnthemdownslightlyifyouhavehigh-efficiencyspeakers.Also,youcouldusethemtocontrolthelevelofline-levelsourcessuchasaCDplayerconnecteddirectlytotheamplifierwithoutapre-amplifierormixer.Afteryouhavesetthelevelsforthemixer(orothersignalsource),adjusttheLevelcontrolsontheamplifierasthefinaladjustmenttosettheoverallvolumeforthesystem.Instereoandmonomode,usebothlevelcontrolstocontrolthelevelsgoingtoeachspeaker.Inbridgedmode,turnthechannel2levelcontroldown,andjustusethechannel1control.

03-PowerLED-ThisLEDilluminateswhentheamplifierisswitchedon

04-ProtectLED-IfthisLEDisilluminatedduringoperation,oneoftheprotectioncircuitsisactive.Pleasetaketheamplifieroutofoperationandhaveittested

05-StereoLED-Thisilluminatesinstereomode

06-BridgedLED-Thisilluminatesinbridgedmode

07-ParallelLED-ThisLEDilluminatesinparallelmode

08-Powerswitch-Pressthisswitchtostarttheoperation

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0605 07


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.

OUTPUTSCH-B

OUTPUTSCH-A

OUTPUTBRIDGE

T10.0 A

240V~50Hz

MAINS

GROUNDLIFT

LIFT GND

LIMITER

ON OFF

PR STBR

LOWHIGH BYPASS LOWHIGH BYPASSINPUTS

CH-BLINKCH-B

LINKCH-A

INPUTSCH-A

01-XLRinputs-TheseinputsallowyoutoconnectbalancedXLRplugs.Thesearewiredwithpin2hot,pin3coldandpin1ground

02-¼”jackinputs-Theseinputsallowyoutoconnect¼”unbalancedjackplugs

03-Therearetwowaysofconnectingyourspeakers:Lockingspeakerconnectorsorbindingposts.Theconnectorsarewiredinparallel.(e.g.Channel1bindingpostandlockingspeakerconnectorsareinparallelandthesameforchannel2).Whentheamplifierisusedinbridgedmonomodeuseeithertheoutputbridgedlockingspeakerconnectorsorthetworedbindingposts.

04-Lockingpowersocket-Thisiswhereyouconnectthedetachablelockingpowercable.Connecttheotherendtoa240VACoutlet.

05-Ampmode-Thisswitchdeterminestheinputsignalroutingwithintheamplifier.Formostapplicationsstereowillbeused.Stereo:Thisisthenormalmodeforamplifyingstereosignals.Itacceptsleftandrightinputsandroutesthemtotheleftandrightoutputs.Parallel:Thismodeisusedwhenyouwanttosendmonosignalstobothoutputs.Itacceptsasingleinputintochannel1androutesittoboththechannel1andchannel2outputs.Eachchannelslevelcontroladjuststhegainforeachchannel.Bridge:Thismodeacceptsasingleinputintochannel1andusesbothamplifieroutputstodoublethepowertoonespeakeroutput.Usechannel1levelcontroltoadjustthegain.Turnchannel2levelcontroltominimum.

06-Whenengagedthelimiterswitchprotectsyourspeakersfromtheeffectsofclipping.Itisdesignedtobevirtuallytransparentandyoushouldhearverylittleaudibledifference.Itisrecommendedthatyoualwayshavethisswitchactiveunlessyouareusingexternalcompressor/limiters.

07-Groundliftswitch-Thisswitchallowsthesignalgroundorchassisgroundtobeseparatedincaseofagroundconflict.Forthehighestsafetyoftheequipment,itisrecommendedtokeepthe“groundliftswitch”intheGNDposition.IncaseofagroundconflictpleasesetthegroundliftswitchtoGNDLIFT.

08-ThesebalancedXLRoutputscanbeusedtoloopthroughthesignaltoadditionalpoweramplifiers.

09-Crossover:FornormaloperationsetthemodeswitchtoBypass.Low/HighPassMode:Whenusingthe“Low/HighPassMode”,theamplifiercanbeconfiguredforHighPassorLowPassoperation.

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Operating instructions

Rack installation

TheEPSeriesisbuiltfor19”racks.Therackyouuseshouldbea‘doubledoorrack’whereyoucanopenthefrontandrearpanel.Whenmountingtheamplifierintotherack,pleasemakesurethatthereisenoughspacearoundtheamplifier.

Becarefulwhenmountingtheamplifierintotherack.Puttheheaviestproductsintothelowerpartoftherack.Beawarethatfasteningtheamplifierwithfourscrewsonthefrontpanelisnotenough.

Iftheracksarebeingtransportedorusedformobileuse,additionallyfastentheproductsby

connectingtherearbracketswiththesideorgroundbarsoftherack.Inthisway,theamplifier

cannotbepushedbackwards.Thefrontpanelisnotdesignedtoabsorbaccelerationforces

occuringduringtransportation.

Inputs

Shortcablesrunsimprovethesoundqualityremarkably.Inputcablesshouldbeshortanddirect,

sincehighfrequencieswillmostlybeabsorbedifthecablesareunnecessarilylong.Besidesthatalongercablemayleadtohummingandnoiseproblems.Ifthecablerunsareunavoidable,youshouldusebalancedcables.

Outputs

Thehighdampingfactorofyouramplifiersuppliesaclearsoundreproduction.

Unnecessarilylongandthincableswillinfluencethedampingfactorandthusthelowfrequenciesinanegativeway.Inordertosafeguardgoodsoundquality,thedampingfactorshouldliearound50.Thelongeracablehastobethethickeritshouldbe.

ConnectyourspeakersystemsviathelockingspeakerconnectorsortheBannana/Screwcombination(red+,black-)

Connection to the mains

Connecttheamplifieronlyafterhavingmadesurethatthecorrectvoltage(240V)issuppliedandthatthegroundcableisearthed.ThisproductfallsunderClass1.Donotdetachthegroundcable.



Operation

Afterhavingconnectedyouramplifiertothemains,turnbothgaincontrolscounterclockwisetothe“min”position.Thelastproducttobeswitchedonisamplifier.The“ON”and“PROTECT”LEDlightsupnow.Ifitdoesnot,checkiftheamplifierisconnectedtothemainscorrectly.

Aftertheturnondelaythespeakersareactivated(PROTECT-LEDisoff).

Afterhavingsetthevolumecontrolsofthepre-amplifiertothe“OFF”position,turnthegaincontrolsofyouramplifiertomid-position.NowadjustthevolumewiththegaincontrolsCHAandCHB.

Allimportantoperatingmodesoftheamplifierarearrangedonthefrontpanel.

Ifyouwanttoswitchoffthesystem,switch off the amplifier firstinordertoavoidacousticshocksonthespeakers.

Problem Chart

-20dBto30dB -Outputlevel

Clip -Shortcircuitorimpedancetooloworsignaldistorted

Protect -Activeduringstabilisationperiodafterswitchingonorwhenone oftheprotectivecircuitsisactivated

Problem Cause Solution

Nopower Thepowercableisnotconnected Checkthepowercableandanyextensioncables

Nosound

Thepowercableoftherespectiveproductisnotconnectedcorrectlyornotatall.

Checkthepowercableandiftheplugsareproperlyconnectedwiththesockets

Theconnectionsocketortheplugisdirty Cleanthesocketand/ortheplug

Noise Theinputsignalistoostrong Reducetheinputsignalviathegaincontrol

Fandoesnotwork,LEDsdonotlightup

Thepowercableisnotconnected Connectthepowercable

ProtectLEDlightsuppermanently

DCvoltageoninputSwitchamplifieroffandhavetheproductcheckedbyaservicetechnician

Amplifieroverheatsduetoobstruction Cleanthefangrill

Impedanceofspeakerstoolow Ensureminimum4Ωload

Shortcircuitinspeakerconnectionorinspeakers

Checkspeakersandconnections



Cleaning and Maintenance

Werecommendafrequentcleaningoftheproduct.Pleaseuseasoftlintfreeandmoistenedcloth.Neverusealcoholorsolvents.

Therearenoserviceablepartsinsidetheproductexceptforthefuse.Maintenanceandservice

operationsareonlytobecarriedoutbyauthoriseddealers.

Replacing the fuse

Onlyreplacethefusewithafuseofthesametypeandrating.

Beforereplacingthefuse,unplugthemainscable.

Procedure:

Step 1:Openfuseholderontherearpanelwithascrewdriver.

Step 2:Removetheoldfusefromthefuseholder.

Step 3:Installthenewfuseinthefuseholder.

Step 4:Replacethefuseholderinthehousing.

Shouldyouneedanyspareparts,pleaseusegenuineparts.

Shouldyouhaveanyfurtherquestions,pleasecontactyourdealer.

CAUTION! - DANGER TO LIFEDISCONNECT FROM THE MAINS BEFORESTARTING MAINTENANCE OPERATION


WEEE notice

Correct Disposal of this Product (Waste Electrical & Electronic Equipment)

(Applicable in the European Union and other European countries with separate collection systems)

Thismarkingshownontheproductoritsliterature,indicatesthatitshouldnotbedisposedofwithotherhouseholdwastesattheendofitsworkinglife.Topreventpossibleharmtotheenvironmentorhumanhealthfromuncontrolledwastedisposal,pleaseseparatethisfromothertypesofwastesandrecycleitresponsiblytopromotethesustainablereuseofmaterialresources.

Householdusersshouldcontacteithertheretailerwheretheypurchasedthisproduct,ortheirlocalgovernmentoffice,fordetailsofwhereandhowtheycantakethisitemforenvironmentallysaferecycling.

Businessusersshouldcontacttheirsupplierandcheckthetermsandconditionsofthepurchasecontract.Thisproductshouldnotbemixedwithothercommercialwastesfordisposal.

epx series power amplifiers - farnell element14 · epx series power amplifiers user manual power...

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