Originally Posted by bugal1998
Indeed, I'll try switching the input leads to the amp to verify it's not an issue with the AVR output, and I'll switch the wiring outputs from the amp to the speakers to confirm it's not the speaker.
Adjusting the attenuation settings has corrected for the imbalance- and it sounds much better. But turning them down by a click or two and returning them to zero didn't resolve anything, so I'm running all of the 'normal' outputs at -9.5 db, and the tweeter in question at -6 db which has corrected the levels to within 1/4 db. Given the very precise correction of the frequency response beginning at the crossover point, I would say it has to be either the amp or the speaker, and not the AVR. But I'm checking the AVR anyway.
Re: L/R hearing
Yes, Sir... I know I definitely don't hear the same out of both ears... but I also didn't have this issue until I swapped gear. And Omnimic shouldn't have my hearing limitations.
Swapped AVR channels and- as expected- there was no difference. Swapped speaker leads from the amp, and again no difference, meaning the amp is the issue. If it's the right speaker with an issue, then swapping amp outputs (with the attenuation set at -9.5 and -6 db ) should have made the left speaker tweeter ~3.5db hot, and it didn't.
I'm running the amp in bridged mode, which the previous owner wasn't doing, so is it possible there is a bad/weak amp channel that wasn't in use before that's causing the bridged output to be lower? I have no idea if that's even a possible scenario...
The lower output is from what I believe was a previously unused amp channel.
As mentioned before, there is some amp noise coming from the speakers anytime the amp is on; a quiet low level hiss/buzz to where the amp sitting 12' away is louder than the hiss. But anytime there is a signal coming from the AVR there is a noticeably louder buzz that is louder than the amp fan. Both the quieter hiss/buzz and louder buzz comes from both speakers equally. I assume this is still a ground loop issue.