Hi Bluesnbike1954,
I would highly recommend that you consider for audition the Running Springs Dmitri power conditioner. I still have not found a better one in the last two years. For details on the Dmitri take a look at my review here on the GON.
Somewhat ironicly, because of the timing of your post, I just went through another round of auditioning power cords from two very highly regarded companies. One cord I did not like at all, sounded dry and grainy, the other cord was terrific, however it sonics were exactly the same as my present reference cords, but these other cords retailed for double the price of my power cords! I never wrote a formal review on the Combak Harmonix DX Studio Masters that I use throught out my system, but if you go to their website you can see how highly regarded these power cords are. They retail for around $1,500.00, however they often come up for sale here on the GON for around $500.00 or less. I now have tried around 12 different power cords and have not found one I like better any were at this price point. They offer great liquidity, natural timbres, a silent noise floor, and great dynamics on any piece of gear I have them on. By the way, on Meiwan's response he mentioned both Nordost and Shynata, I have tried both companie's reference level power cords and did not like either in my system. Thought the Harmonix Studio Masters were far better for alot less money.