Ground Loop?

Thanks for the info. When the outlets were installed, I used in wall 20 gage AQ power wires. I've lifted the ground on both and individually with adapters. I even had the 350P or the JC3 Jr hooked up to a regular outlet, 2 completely different lines and lifted the ground on 1 or both in different configurations. 1 using the dedicated line and a standard wall outlet So, it's not the outlets. Still there, but again when I reach back on the JC3 Jr and when I touch the loading pot and only the pot it goes away. When I do touch the pot, the noise slowly fades away. I've been in touch with David and Jason at Parasound via email, and they stopped communicating with me and won't answer any questions or offer any kind of help.

oldrocker52

When the outlets were installed, I used in wall 20 gage AQ power wires.

On a 15A line? Are you in the US? That isn't even close to code where I live.

I've lifted the ground on both and individually with adapters.

That also sounds problematic.

Do you have any other metal to metal contact going on?  Like via your shelf?

One other thing to check is that you have a good neutral.  Use a multimeter to test from Neutral to Ground.  Should see no more than a couple of volts.

Cleeds is correct. At 20 awg, you aren’t even close to a 20 amp code requirement. For a 20 amp circuit, you should have at a minimum, 12 awg wire. Personally, if this was a custom job, I would run 10 awg stranded wire in metal flex conduit. Again, I’m not a certified electrician but you may have much bigger problems than the ground. How long is the run of AQ 20 awg wire? Is the AQ wire rated for 20 amps at the length of your run? For your sake, I hope the electrician verified all the specs before installing the two circuits. Worse case scenario, one or more wires will heat up and possibly cause a short or fire.