Dedicated 20 amp lines/should i use a sub panel

Audio Advisor has excellent Solid Copper gold plated 20 amp 
for $100 each , or their phosphor bronze gold plated 20 amp $50
night and day better then anything Hubble makes and the best buy
in top quality outlets  built to last and grips great. 
Look at the resistance index ,cheap home units zinc , brass ,
bronze 4x better conductivity , Copper 5 x .for the money 
the gold phosphor bronze  are fantastic . I am rebuilding my line 
conditioner with the exact one . You want great sounding cable inside your wall,
Analysis plus sells The best Audio cable by far that runs inside your wall a awg11 I believe you may pay 4 times as much as Home Depot crap but you will hear the diffference without question !!

noromance said:

However, I’ll definitely try it on the DIY 4 duplex receptacle unit if i can buy one in that size. Thanks for your help.

The DIY 4 duplex plate appears to be stainless steel. It may or may not have ferrous materials in it. It depends on the grade quality of the stainless steel. You can use a magnet to check it. If the magnet sticks to the plate like glue or is attracted to the plate replace it with a non breakable nylon plate. Change that single receptacle steel cover plate if that is the outlet that’s feeds the DIY power distributor.

Jim

Use levlok hospital grade outlets. They have pigtails and you connect it with wire nuts 

New house, ran 4 separate 20 amp circuits to 1 of the main panels. I asked my electrician and he thought that would be best. No hum or issues and have plenty of power for anything I want to use

Al, (almarg),

By chance have you been following the exchanges between noromance and me in response to this post of his?

noromance
904 posts                                                                                                 01-03-2018 10:23pm

I ran 2 x 20amp runs on 10 gauge from 2 side by side breakers for monoblocs. I ended up not using one of them because of a hum loop. Let us know how you get on.

Both mono block amps are floating the safety equipment ground.

When everything is fed from one dedicated circuit no hum.
When the other dedicated circuit is used to feed the other amp he gets the hum.
Is there a chance the hum is not caused by a difference of potential between the two equipment grounds of the two dedicated circuits?
Just a gut feeling I don’t think the equipment grounds are causing the hum.

And how would you explain this?

noromance
904 posts                                                                                                  01-04-2018 2:29pm

Jim,
8/2 with ground. You are correct about the legs. I also tried it on both legs. So instead of 22, 24, where I originally connected it, I had tried it on 23, 24 but it still hummed. In fact, as it’s a basement space, I just ran in a 12/2 on 15A breaker on the same leg to see if it still hummed with the (2 wire) monos. It did. But it doesn’t when I add my REL sub. So all is not lost! I should say that there is normally no hum from the rig.

But it doesn’t when I add my REL sub.

???

Any ideas? Suggestions?

How about if the mono amps are using an AC Line filter cap/s and maybe one or both is leaking to the chassis of the amp. What if the hot and neutral AC polarity is reversed on one amp with respect to the other?
https://systems.audiogon.com/systems/1593

Again, any ideas?

Jim