Amplifier Operation

ON/OFF AND OPERATION

Whenpoweringup your system,turn amplifiers on last. Whenpoweringdownyour system,turn amplifiersoff first. Theproceduresfor amplifieroperationfollow.

1.Pressthe powerbutton (1) on the KAV-1500front panel. Theblue powerLED(2) illuminatesandyouheara click. Theamplifieris nowreadyfor operation.

2.Withthe outputdevicemutedor volumecontrol fully lowered,select an output device.Decreaseor increasethe volumecontrol to the desiredlistening level.

3.Beforeturningthe systemoff, muteor lowerthe outputdevicevolume.Pressthe front panelpowerbutton(1) to turn theamplifieroff. It is nowsafeto turn off therest of the system.

IMPORTANT

Alwaystumoff the amplifier beforechanginginput connections,andmuteor fully attenuatethe preamplifier/eve/whenswitchingsources.

TheKAV-1500hastremendousreservesof powerandsafely drives loudspeakersto extremelyhigh soundpressurelevels. However,usecare whensetting high playback levels andlowerthe volumelevel at anysign of loudspeakerdistress.

Troubleshooting SystemNoise

Whenyou mix and matchhigh-performanceaudio components,eachwith its own groundpotential, a low frequencyhummayoccurin oneor all loudspeakersIf. this happenswhenyouplace the KAV-1500into your system,follow thesesimple troubleshootingsteps.

1.Checkthat all input andoutputconnectionsareof soundconstruction.

2.Withthe amplifieroff, removethe interconnectcables,thenturn the amplifieron. If the humdisappears,turn the amplifieroff andreinsert oneof the interconnect cables.Turnthe amplifier backon. Repeatthis processfor eachcable.

3.If the humreappearswith oneor bothinterconnectcablesreinserted,the cable needsto be replaced.

4.If the interconnectcablesare sound,youmaybe experiencinga groundloop. PleasecontactyourauthorizedKrell dealer,distributor, or Krell for suggestions howto eliminateit.

Krell Industries KAV-1500 manual Amplifier Operation, Troubleshooting SystemNoise