immtbiker

I don't hear a negative difference, only positive with the P500. But based on what people say about the added impedence causing a loss indynamics power conditioners, shouldn't that be the case with power regenerators also? They to, have a great deal of power conditioning going on. Maybe because the regeneration occurs after the filtering, this wouldn't be the case. The way I understand it...the PS Audio approach is to take the AC and convert it to DC and then go through 3 stages of filtering, and then it gets regenerated to an oscillating sine wave.

Running Springs makes some awesome power conditioners, some say they are some of the best in the world. I live in a 55 year old co-op garden apartment w/2 wire. I had hum coming from every component with a mid to large transformer. I had to ground lift everything (not so cool in case of emergency). About 4 years ago, I bought an Audio Prism Power Generation III which had all 3 of their conditioning processes. It didn't stop the hum, but it definitely made a difference in black background and and consistent sound between prime time and the wee hours of the morning. They since went out of business. I decided (after reading many reviews on Audiogon) to try a PS Audio P500 which is a conditioner and a power regenerator. It knocks your wall voltage down to a DC signal, filters it a bunch of times and then creates it's own oscillating AC output. It is impervious to what is coming out of your wall. It comes (like all PS Audio products) with a 30 day guarantee. This purchase is without a doubt the best tweak I have ever bought. It is pricey, but it eliminated all of my hums and improved the output of every component I own. The difference is startling. I guess having consistant power supplied to your PS and transformer enables the component to do what it was made to do, without trying to keep up with an inconsistent input signal. (Sort of on the same lines of vibration control). It's worth every penny. Please note- If you live in a home which has good power and all you need is power conditioning and surge protection then this component is overkill. But if you have old lousy power then it's worth it's weight in gold.

The Concertinas are both warm and can sit on top of shelves, out of harm's way. A couple of steps down are the Epos ELS-3 which are quite warm and a bargain for the money (Hirsch might agree with me on this) and can be raised to eye level. http://www.elusivedisc.com/prodinfo.asp?number=EPOSELS3

I evaluated them every which way possible and here's my conclusion. Even though they are rated a 5 htz, the lows are rolled off (no subsonics). The highs do not hold on for very long...they fall off quickly. However, compared to everything else in it's price range, the detail is amazing. They are a bit dark and neutral (like the O2's) but man, they have layers of detail that aren't heard in the Senn 600/650 and Beyer 880's. The white is a "either love them or hate them" situation for most people. I max out the headband, so they are a little bit uncomfortable for long term wear, but I am the only one that feels that way, in my conversations with other users (then again...the K1000's cause me migraines, too and don't bother most other people).

Hello Head Case people. Nice format!