I tried numerous power conditioners and did not have too much luck with them. The inserted the PS Audio PowerPlant in front of my CD Player and Preamp. I bought it used, thinking I'd be selling it in a few days, but it's amazing and will stay. More clarity and more defined bass were the major improvements. The other thing is that my power amp is on a dedicated circuit, which made for better dynamics.
Niels.
Niels.