Why so many Power plants for sale?

I have tried both the P300, Exact Power, and Equi=Tech.

P300. I think the P300 is a good product, especially at Audiogon prices--I have one up for auction now. Made a big difference in television quality and virtually eliminated noise from my CDP and preamp (the main culprits). As I stated in an earlier post on this subject, I think the reason so many come up for sale is that PS Audio has sold so many of them (a positive rather than negative reading on your observation). And the P300 is an entry-level unit so, after trying it, many upgrade to larger units.

Exact Power. I had a few concerns when I ordered this product given the lack of reviews. However, my experience is consistent with the review on the Exact Power site. I think it is a nice product which really does the job. You can hook up a lot of gear to it--far more than my circuits could deliver power for. I live in an apartment with poor power so it may bring greater improvements given my situation than yours. And my system is not overly power hungry so perhaps others can comment on any dynamic limitations this product imposes. One issue which I have heard raised is that downstream transformers may hum when attached to the Exact. I have heard this about the Power Plants as well so this may be common to power regenerators. I have noticed this with the Exact but it is quite minor.

Equi=Tech. Another nice product. Cleans up the AC well and generates balanced power. As you say, it will not adjust power voltage or frequency. A nice touch in my system following the Exact in the chain. But the Exact would get you most of the way there.

Good luck. --Scott

Power regeneration like on PS audio powerplants is good for low power sources but not for power amplifiers or expencive tube CD players or phono-stages since it doesn't have that capability to deliver enough power into. In fact it seems more and more not to have any use...

They're very good units, but are inefficient because they require so much power themselves that even the biggest ones really don't work on large power amps. I had to use a Richard Gray unit for those. Eventually it was just easier to get rid of both and switch to a Burmester 948 (expensive, but takes the whole system).

I agree with jbweaver, I think they have sold lots of them and many people(a couple I know) have upgraded to bigger ones to put more stuff on them. I have a P600 and really love it. I have everything except my power amp hooked to it (including my Pioneer Elite Pro97 rptv). It makes a huge difference for the tv. Maybe you can just get another p300 for the tv, or upgrade to a p600.

I had both the P300 and P600. Both had multiwave, and I ran them both from dedicated outlets. The P600 was switched to 220V, which made it perform better. Both were fed with high quality power cords. I was using the P600 for my amp and analog, and the P300 for digital. Then I tried the Sound Application C-FX. My system totally opened up, and I realized how the Power Plants restrict current flow to audio equipment. Yes, they quiet things down, but they also mask a lot of nuance and low level detail. Recordings now had space and venue that was lost with the Power Plants.

Then I tried the new Audio Magic Stealth. I didn't have much hope for this lightweight power conditioner in a plastic box, but compared it to the C-FX at the urging of it's designer. WOW!! It smoked the C-FX. Out went the C-FX and in went two Stealths to isolate digital and analog. This is the best I've found. The silence and black background is stunning. If you follow Soundstage, you'll see that some of their reveiwers are using them now in their reference systems. The owner of Audio Magic hasn't advertised these things, and he can't keep up with the demand from word of mouth.