Can all power cords be classified as 1 of 2 types?

Rgs92, You are absolutely correct. I have been listening to a good number of PCs (up to $6000 retail), and there is always a compromise or two somewhere. What's worse, is that PCs can negate some of the desirable attributes of other components. I now believe that a conventional PC cannot get it all right, including:

1) Deep, defined, appropriate bass.
2) Clear and robust midrange with proper decay and no grain.
3) Open, extended, clean top end that seems to go forever.
4) A sense of forward propulsion and energy.
5) A huge and deep soundstage with no sharp edges.
6) Proper balance and a natural presentation, so nothing sticks out.
7) No haze, so it seems like you are sitting in front of the performance.

I currently have a prototype PC from a new company, that uses very unique technology. It is as close to getting 1-7 correct as I have heard. The benefit exceeds that of changing a component. The final version is currently in production, and I should have it within about 2 weeks. Anyone looking for the ultimate PC should wait a little longer. I am not convinced that there is an acceptable PC on the market currently.

Interesting stuff RTN1, and thanks for the other replies, too. I didn't want to bring the whole area of power conditioners into this discussion as that is a whole other pandora's box.

I have never found a PC that does enough right to justify the expense, especially on my Mac 501 amps. I find certain areas can be improved or enhanced, but in every case I lose that organic feel I get with the Mac's. I recently began using Wywires Juice cords on my amps and phono pre and they improve everything but the amps retain that wonderful organic quality Mac amps deliver. I was pleasantly surprised and they are reasonably priced at around $300. They also aren't the size of an anaconda - pulling out of the wall and components off the rack!

Hey Pops, I know the feeling. Some of these power cord makers seem to think you will arrange everything around their cords.

Pops you are spot on. Did you ever wonder why a manufacturer of a 20,000 dollar amp uses a stock cord. Don't you think they would produce a cord and add that to the sale to optimize the sound. Bottom line is keep it simple and inexpensive.