Power Cables and Wall Sockets

"The former case is a more of testamony like the Thomas (or what it another fellow on the road?.) The cable makers could show something happening with out just resorting to talk about the quantum world.

@holmz 

It was St Paul on the road to Damascus who had the revelation.

'Doubting' Thomas was the apostle who did not believe Christ had risen from the dead after being crucified until Christ showed him the nail wounds in his hands.

Query.  If Christ could be brought back to life after being dead for three days, surely cleaning up the nail scars would be trivial?

It was fortunate to not have healed the scars before Thomas saw them.
That could have been a bit of a problem.

If the OP’s power amplifier’s power supply was not heavily over regulated, and maybe even then, the circuit that feeds the amp is staving the amp of power when playing high dynamic music material. The dimming lights is proof of that. The AC mains VD may be, (probably is), lowering the amps rated power output.

An an oversized high capacity shielded toroid power transformer is meaningless if the AC mains voltage can’t feed the transformer the power it needs to operate properly.

Quote from link provided by OP.

Power Supply Circuits

The Vision SET 120 Control Amplifier has an oversized high capacity shielded toroid power transformer and multiple regulated power supplies for all areas of the amplifier including the output transistors, to provide incredible dynamic range, bass extension, transient detail, and air. All of the power supply parts are selected for long life, reliability and operate well within their technical specification ratings..

@jea48 Said!

If the OP’s power amplifier’s power supply was not heavily over regulated, and maybe even then, the circuit that feeds the amp is staving the amp of power when playing high dynamic music material. The dimming lights is proof of that. The AC mains VD may be, (probably is), lowering the amps rated power output.

An an oversized high capacity shielded toroid power transformer is meaningless if the AC mains voltage can’t feed the transformer the power it needs to operate properly.

Quote from link provided by OP.

Power Supply Circuits

The Vision SET 120 Control Amplifier has an oversized high capacity shielded toroid power transformer and multiple regulated power supplies for all areas of the amplifier including the output transistors, to provide incredible dynamic range, bass extension, transient detail, and air. All of the power supply parts are selected for long life, reliability and operate well within their technical specification ratings..

I concur!

 

What is known is NO power cord will solve his dimming light VD problem...

Very true!