THE WALL---Why?

I have my  entire tubed based system including my amp, into my power plant.
The PP just seems to add a  subtle dimension of clarity or clearness to the sound.
The amp straight into the wall still sounds nice, but I prefer the PP S

I have my plasma on a rollaway. On movie nights, I position it between the speakers and plug it into the PP as well. Beautiful picture along with amazing audio.

I wouldn't listen/watch without one.

There are many types of PS Audio Power Plants so I'm not sure which you are speaking of. Personally if I had one of these http://www.psaudio.com/products/p3-power-plant/ I'd certainly plug my amp and everything else into it. I don't by the amp into wall outlet theory. In my case I've taken a far less expensive route: Dedicated (separate breaker) 20 AMP wall outlet >>> Emotiva CMX-2 >>> Panamax MR-4300 >>> all audio video equipment. Works well for me. Doesn't limit current by any practical standards, although technically this is not 100% passive but is extremely close to 100%. Also, I'm using SS equipment and I'm uncertain if this would work as well in a tube situation.

I've always had the best performance when amps are plugged directly into the wall.  I am using dedicated 20A circuits, but anytime I put something between the outlet and my amp, I lost something.

Here in Ontario, Hydro plays games with our electricity. We are often at 125V or higher. The question is: what have they done to manipulate the power. Plugging into the wall is not ideal.

My Torus conditioner is used to drop that down to 120V. The nice thing about the Torus, 30amp peak current (for when I'm in a Rock N Roll mood). However, the circuitry that drops that down, adds something, also not ideal.

From there it feeds a BPT (balanced power technologies) toroidal conditioner. This is the cats ash!. For a lot of us, balanced conditioners are the only way to go. The only thing you lose is distortion. I was so used to this mild distortion, that I thought is was volume (spl). Once I got used to lower distortion, the wall was no longer an option, or any other conditioner. YMMV.

I believe Chris, from BPT, is now with Equi=Tech?

cousinbillyl

Here in Ontario, Hydro plays games with our electricity. We are often at 125V or higher ...

Actually, 125VAC is a very good voltage, just slightly over the nominal 123VAC that's the common standard in North America.