THE WALL---Why?

Yes, I meant plugging the power amp into the electrical outlet in the wall, not the wall itself! I was initially disappointed with the sound given that I had spent a very large amount of money from my inheritance from my mom to finally buy my "dream system."  The dealer then came out and measured the electric current in the house, and decided that I needed a power plant because of the poor and fluctuating current provided by PG & E (Pacific Gas and Electric Co). The addition of the  P.S.Audio power plant resulted in an immediate HUGE improvement in sound quality. 
   I take it it's o.k. to plug the amp into the wall's electrical outlet. I will give it a try. ..
   THANKS to everyone for all of the thoughtful responses!!!

     ---Steve

Hi Alan. As I mentioned in my previous post, the primary purpose is to provide voltage/current in such a fashion so that it improves system component "health" (operation, efficiency, etc.). I've noted that not all manufacturers of filters make any claim about sound improvement. Also, consider what many on this forum and in this thread in particular have noted, which is in their opinion it can (paraphrasing) be a detriment to the sound. I suppose this is why those individuals plug an amp directly into the wall outlet. The concern shouldn't be less available current as virtually every filter manufacturer claims their product does not limit current. Depends on who you want to believe I suppose. Also, and as I've stated previously, if there is a sound improvement it really should be very subtle. If you're noticing some major improvement - as some tend to describe - I'd venture to say something is fundamentally wrong above and beyond power concerns. just my .02.

Kalai, that was indeed, a lucky find.

terry9,
Have a BPT 3.5 Sig+ for my front end. Changed things substantially for the better. My 60 Watt mono blocks are across the room, into the wall. I'm sold on balanced power but what capacity do I need for the amps? My speakers are high efficiency so it's doubtful that I am pulling max amperage at any time.
I've found a 20 amp Equi=tech unit, just curious it it's up to the job. My calculations, using 275 watts max, the specs in the owners manual,  the amperage should be about 2.5 amps on the high side. Head room therefore would be about 4 times highest usage. Correct?