What AC Power Cord sounds best?


I'm looking to upgrade my power cords. I currently have 4 Synergistic Research AC Master Couplers in my system. They sound great but I understand there are some others out there with a quiter background, better bass, increase resolution, etc. Please let me know of your experiences with the 'really good stuff'. Thanks!
jaguar
Has anyone had experience with the HARMONIC TECHNOLOGY AC-11 power cords. I`m thinking of purchasing this cable for my AYRE V3 power amp and WADIA 830 cd player. Any help would be greatly appreciated.
OK, now you are think this is crazy, but know something, it is absolutely true. The Shunyata King Cobra is best by a mile. No I don't work for them, they don't even know me. Not only did the King create better dynamics, a more "solid and definitive " soundstage, even the TV reception got much improved. The colors got brighter, less fuzz, and the images got sharper. Now remember the TV does NOT use the King Cobra, the TV has it's own outlet across the room. It has nothing to do with the stereo. The KC is a little expensive, but if you purchase it, I doubt that you would return it.
I have the Electraglide Fatboy for my amplifier (BAT VK-60). The best I have tried (so far).
BEST IN THE WORLD? King Cobra by Shunyata! Bar none. You will be simply awestruck like I was. If your budget will allow put them everywhere in your system.
Wow...You PowerSnake-a-haulics aren't kidding. I have tried 4 different brands of power cords since I initially started this topic. There truly isn't any point in mentioning the manufacturers or product names either. Be absolutely rest assured that NOTHING can even come close to the magic of the PowerSnakes! High end audio has been my passion for many years. I have hooked up numerous different amps, preamps, CD players, digital seperates, etc into my system and many times noticed differences in soundstaging, bass definition, focus...(you know all the lingo) There has never been a component that has made such a dramatic improvement in every aspect of music reproduction as these powercords have. I am almost awestruck by the sound my speakers are now producing. Ladies and gentlemen, this product is an absolute MUST for you to try! You can hear eveything that vinyl and cd's possess on them. You can hear not just a group singing soprano, alto, tenor, and bass but also the individual voices comprising each section. You can hear the fullness and richness of vocals, the most powerful slam of a bass drum becomes an explosion from your speakers. Don't think of upgrading your equipment until you have tried these powercords. You may be astonished how good your current gear really is. I've got Black Mambas hooked up to my CD player, preamp and amplifier. Going to add a King Cobra to the line conditioner. PowerSnakes........just listen!