Amp straight into the wall

@bikeboy52 Thanks for the update and congratulations.

If you have a short run from the panel, 12 gauge is fine. If long, then 10 gauge.

As for aftermarket power cables...I would not lock in on one. Try a few out. There can be notable differences.

My NAD home theater receiver bricked after a year, and the repair shop blamed the power conditioner.  I then used the unit again without a power conditioner, but it bricked again.

I need to plug everything into a power strip (Niagara 1200) due to the lack of outlets near my rack. I plug my amps (speakers and headphones) into the high current outlets of the Niagara. There is a severe decrease in dynamics when you use the filtered outlets with the speaker amp (Class A 30w/8ohms), but not so much with the headphones amp. 

OP,

👍

Really glad to hear it. It is great when something works to improve your sound.

a clean 20 amp home run number 12 romex straight to a hospital grade gound fault receptacle

That'll do it :) lol