Power Cables and Wall Sockets

@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!

 

@jerryg123 Said!

VD Problem?

Go to the Free Clinic.

I agree I went to the McIntosh free Clinic and got cured.😁

Mike

It would make a lot of sense for someone to start investing in a dedicated power line before even considering expensive power cords. Vince Galbo of MSB Technology has it right:

I agree!

@imaninatural,

Do you have a stereo amp or mono blocks. Also what make and model.

Mike

@imaninatural Said,

Without knowing for certain, it seems to me that power cables can only be as good as the in-home wiring coming to the wall socket.

I agree!

This just came to mind!

One thing that I am curious about is if upgraded power cables will eliminate the issue of my lights dimming when listening at reasonable high volume.

NO!

Installing a dedicated 20 amp circuit for the audio gear will help with the lights dimming. Probably eliminate it.

Mike

@imaninatural,

Look at Hubbell!

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

Very true!