Is it a tube amp? if it is check the bias of
your tubes I just had that problem with
the hissing and cracking out of one speaker
checked everything but the bias and that was it. Good luck
Faint buzz in speakers
There is a very faint buzz coming from speakers with amp on, but with no music stream playing. Can only be heard with ear right up to drivers. No buzz with amp off or muted. Decent amp & cabling. Is this faint buzz likely still there under music when it’s playing? Numerous noise reduction devices deployed including dedicated circuit, robust grounding, balanced power transformer, various filters. Thoughts?