Questions and Answers
Q. ShouldI leave the KAV-1500amplifier on at all times?
A. No. Theamplifier doesnot havea stand-bymode.Leavingit on at all times would result in considerableheat output andpowerconsumptionFor. best results, turn the amplifier off whennot in use, andallow a five minutewarm-upafter it is switchedto the operational mode.SeeAmplifier Operation, on page 19.
Q. WhenI turn the amplifier on there is a loud humthrough the loudspeakers.What should I do?
A.Whena newcomponentis introduced, a low frequency hummayoccur in one or both loudspeakers.Checkthat all input andoutput connectionsandcables are of sound construction. See TroubleshootingSystemNoise, on page19. If the connections and cables are sound,you maybe experiencinga groundloop. This can often be easily eliminated.Pleasecontact yourauthorizedKrell dealer, distributor, or Krell for suggestions.
Q.WhenI connectthe amplifier to mysystemusing the single-endedinputs, a loud buzz comesfrom myloudspeakers. Whatis it?
A.Checkthat the shorting pins for the KAV-1500are inserted into the XLRinputs (the unit is shippedwith the pins in place). Whenusing the single-endedinputs, these shorting pins mustbe inserted betweenpins 1 and3 to keepexternal noise from corrupting the signal. For moreinformation, see Connectingthe KAV-1500Amplifier to Your System, on page 10.
Q.CanI bridge all the channels on myKAV-1500?
A.The KAV-1500has five channels. Youcan bridge four of those channels to operate as two channels. Onechannel must remain unbridged. See Bridged Operation, on page 16.
Q.I wantto bridge the channelson myKAV-1500but whenI openthe amplifier, there are ribbon connectioncables already in place. ShouldI removethem?
A.No. Youramplifier is shippedwith ribbon connectioncables in place andpolarized to ensure the correct phase(see Figure 3, on page13). Do not removeor changethese ribbon connectioncables. The KAV-1500is not reconfigured for bridged or Multi Amp Throughput(MAT)operation whenit is shippedto you. Usethe additional ribbon connectioncables shippedwith the amplifier andinstructions on pages12 and16 to reconfigure the KAV-1500for bridged or MAToperation.
