Counterpoint SA 220

Sorry, no line conditioners here...

I have a dedicated circuit for my amp on the front wall between the speakers and another dedicated circuit for the components on the side wall.

Like maybe try 1 for process of elimination ???

So, this isn't really an upgrade, its a mod.

They are replacing all the caps, transformer, tube sockets, power cord, etc., etc.

It appears this is nothing more than another of many out there performing mods and convincing you they know more than the engineers at Conrad Johnson, Audio Research, Wadia, etc.

If you are not satisfied with your PV-11, why don't you sell it, add $1200 to the sales price and buy a better preamp. Once you modify it that money is gone. You will never be able to sell your preamp and get that $1200 back.

GNSC modified my friends Audio Research SP-15 ($5,995 retail in 1988), one of the best preamps out there. And they ruined it with their so called mod.