@tee_dee I may have to spend the rest of my life figuring this out! It can’t stay like this!
@wturkey Thanks! I may have one left over when I had to chase a ground loop hum in my (home theater) subwoofer.
@panzrwagn Thank you so much for this! Very informative. I’ll read those articles if for no other reason than to learn more about our crazy hobby! I can’t rule this out, either. These amps have pretty high input sensitivity and, I believe, are a high gain design.
@perkri I did not disconnect the RCA’s from the amp..from either end. I did swap out power cables and I did plug them in directly to the wall outlet and into a PS Audio Power Center. Nothing changed in any scenario. Unplugging the inputs at the amp is what I will try next, based on a previous recommendation 🙏🏻. The hiss stays constant. No change with volume adjustment, nor input selection on the preamp. It does it with nothing but the amps turned on. Thank you!
@rbull11 Great thought! Alas, everyone hears it. It is real. But I, too, suffer from Tinitus and have often made sure it was the speakers hissing and not my head! Thanks!
@amtprod I’m definitely going to look into the issue of bias. I hear a lot about it, so it clearly has great impact. This is a “on or off” kind of hiss. It’s either doing it or not. And it does not change with volume or input changes at the preamp. And you can hear it quite noticeably “under” the music when it’s playing. Like a lot of background noise. Quiet passages aren’t quiet. It’s very annoying not to have the clarity I’m used to. These are pretty “crisp” speakers (Scanspeak beryllium tweeters). Thanks!
@serjio I will have to look in to that. Sounds intense. I was concerned that something else from someone else was shitting into my system, but hey, you never know! Thanks!