EPX Series Power Amplifiers - Farnell element14 · EPX Series Power Amplifiers Use anual 2 Safety...

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

AMP27 - EPX 1200AMP28 - EPX 2200

EPX Series Power Amplifiers

User Manual

POWER

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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

POWER

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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

POWER

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01 0205 02

0304

01

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.

0201 01 040305



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

OUTPUTS CH-B OUTPUTS CH-A OUTPUTBRIDGE

240V~50Hz

MAINS CIRCUIT BREAKER

GROUNDLIFT

LIFT GND

LIMITER

ON OFF

PR STBR

LOWHIGH BYPASS LOWHIGH BYPASS

!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.

Serial no.

POWER AMPLIFIER240V~50Hz

INPUTCH-B

LINKCH-B

LINKCH-A

INPUTCH-A

PINOUTCH-A

POS

1-

2-2+

1+

NEG

BRIDGE

POS

1-

2-2+

1+

NEG

CH-B

POS

1-

2-2+

1+

NEG

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.

10-Circuitbreaker-Iftheamplifierisoverdrivenoraseriousproblemoccurstheresettablecircuitbreakermaybeactivated.Pushtoresetthecircuitbreakerwhennecessarytorestorepowertotheamplifier.Ifthebreakerwillnotreset,contactyournearestauthorisedrepaircentreforassistance.

04 10 03

02 0909 010808 0506 070102



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 Use anual 2 Safety...

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