hdiwood Posted October 8, 2008 Share Posted October 8, 2008 I have an AVM-16A2-B multi channel amp that is making a consistent. high-pitched whine on all channels whether or not an input is attached. Regular Audio plays through but the whine is a killer, especially when the music is off. Have tried resetting and isolating from the network but does the same thing.Is this a bad unit or something else? Link to comment Share on other sites More sharing options...
TurboKuake Posted October 8, 2008 Share Posted October 8, 2008 Sounds like a bad unit. Either that or interference. Has this unit ever worked correctly? Is it close to a high power source and getting EMI? Link to comment Share on other sites More sharing options...
AS2 Posted October 8, 2008 Share Posted October 8, 2008 This amp needs to be returned. Did it do this right out of the box or did you short a speaker wire while installing. V2 is susceptible to weird hissing when shorted. Link to comment Share on other sites More sharing options...
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