Video Asylum

Posted by radicalsteve on January 28, 2001 at 13:54:09:

In Reply to: Peculiar noise phenomena with Denon AVR-5700 posted by NickS on January 21, 2001 at 13:35:02:

Nick,

My Denon AVR4800 does this as well, although I've only noticed it when the input switch is set to "TV" and the feed is off. I believe that unless the sound is significantly audible, i.e. noticeable from where you sit, this is just a resistor circuit design topology used by many manufacturers that cuts out as soon as a signal is detected. Tha alternative design attenuates the ground circuit but you pay for that with a lower quality sound. Bottom line is, if you only hear it when your ears are close to the speakers then it is not a concern.

Steve