Have you ever tried a Power Cord setup as I suggested? At least you don't sell power cords, so you could keep yourself open to that. Dan D'Agostino uses a method I wish I could use, #8(?)gauge twisted copper from the transformer to the breaker box(done by the utility co.). Prohibitively expensive for me. Beyond that, considering the wire quality running from my box (it is not Kimber Kable)to the wall outlet, the relatively short wires that connect the unit to that outlet need only to mach that in-wall wire's (must be copper, no aluminum)transfer capabilities. Twisted strand and conductor(to spin-off magnetic field)copper cable is not expensive. Shorter is better. If there is excess length, braid it as possible for even more magnetic field rejection. Snap-on, or pull-over RF Blockers(of largest diameter you can find)on each end. Aftermarket types, used with typical in-wall wiring, can only mach that at any price(tang quality of the plug and receptacle is an exception). This is my view. I did not belittle your advice or dismiss your methods. I had no aim to be cynical. You(RODMAN99999)had mentioned your "experience" in response to me, first. No "pissing around" here. I respectfully related some of mine.
And no, I haven't listened A/B to modified such as mentioned. I would like to. I am waiting on my new system to become available(Sony TA-A1ES/HAP-Z1ES). I will then take an exhaustive look for ANY possibilities, and I will Post.