Specifications
XPA‐2BackPanel
1.RemoteTriggerInput‐TheXPA‐2canberemotelytriggeredbyanotherdevice.Whenaremotetriggeroutputfroma
preamplifier,processororotheraudiodeviceisconnectedtothetriggerinputhere,theamplifierwillpowerupandshut
downalongwiththefirstdevice.
A3.5mm,5‐12voltmonoaudiocableisusedforbothinputsandoutputs.Ifbuildingyourowncable,centerispositiveand
outershieldisnegative.
2.WorkingLEDSelector–Thetwo‘On’statusLEDs(oneforeachchannel)ontheamplifierfaceplatecanbeturnedonand
offwiththisselector.
3.MeterLEDSelector–ThemeterLEDs(whichmoveinsyncwithamplifieroutput)canbeturnedonandoffwiththis
selector.
4.RightChannelXLR/BalancedInput–ConnectswithanXLR/Balancedcabletotherightchanneloutputofapreamplifieror
processor.
5.RightChannelBalanced/UnbalancedInputSelector–Whenturnedtowards‘Un‐Bal’,theRCA(unbalanced)inputis
chosenandactive.Whenturnedtowards‘Bal’,theXLR/Balancedinputischosenandactive.
6.RightChannelRCA/UnbalancedInput‐ConnectswithanRCA/Unbalancedcabletotherightchanneloutputofa
preamplifierorprocessor.
7.BridgedConfigurationSelector–Leavingthisselectoron‘OFF’keepstheXPA‐2instandardtwochannelmode.Turningit
to‘ON”bridgesthetwoseparatechannelsintoone,turningtheXPA‐2intoamonoblockamplifier.NOTE:Bridgedmodeis
meantforusewith8ohmspeakers.Usingbridgedmodewithlowerimpedencespeakersmaycauseoverheating,causing
theamplifiertogointoprotectmode(fault),andpossiblysustainpermanentdamage.
8.LeftChannelRCA/UnbalancedInput‐ConnectswithanRCA/Unbalancedcabletotheleftchanneloutputofa
preamplifierorprocessor.
9.LeftChannelBalanced/UnbalancedInputSelector–Whenturnedtowards‘Un‐Bal’,theRCA(unbalanced)inputischosen
andactive.Whenturnedtowards‘Bal’,theXLR/Balancedinputischosenandactive.
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