Specifications

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8) Signalledchannel2:thisledlightsupgreenwhenasufcientlystrongsignalispresent
on the left channel, after passing the input level control. At startup, the led will light up red
during a few seconds, this is perfectly normal. When it lights up red during use, the power
transformerorpoweramplierisoverheatedorinprotectmodeandisshutdown.Turnoffthe
power. The amplier will not turn on automatically after most error conditions. In some
cases, the user MUST turn off power and remove the overload and then power on
again ! More details can be found in the table below.
9)  APCactivityledrightchannel:thisledlightsupwhentheAPCcircuitryisactive.TheAPC
circuitry reduces the gain at the inputs to guarantee the full dynamic range of the power
ampliercircuits.
10)Clipledchannel2:thisledlightsupwhenevertheamplierclips.Thisisawarningsign:you
are pushing things a little too far or you are overloading the amp. Reduce the input level by a
few dB so that this led never lights up anymore ! Don’t ignore this !
11)Templedleftchannel:thisledlightsupwhentheamplierisabouttooverheat.Outputpower
willautomaticallybelimitedbytheAPCcircuitrytoavoidfurtheroverheating.Thispartofthe
protection circuit resets itself automatically when temperature has normalized. When both
signalled(2)andtempled(5)arered,thepowertransformer’sthermalprotectionisactive
andtheamplierisshutdown.Turnoffthepowerandletitcooldown. The amplier will not
turn on automatically after it has cooled down, the user MUST turn off power, wait for
cooling down and then power on again ! More details can be found in the table below.
12)Volumepotmeterchannel2:usethispotmetertopresetthevolume.Inbridgemode,this
potmeter has no function.