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
The Edge 10' power cord is pretty incredible. I just won a couple of them off Audiogons' auction. I won them for $75 each which is pretty incredible on how they are sound. Very neutral, and incresed detail in my system. Probably the quitest power cords I've ever had on my Levinson amp and premp. I use to own Cardas Golden power cords, and though it was very colored and bloated in the mids and bass. The Edge neutralized it and enhanced the imaging out of my Thiel 7.2s. All I can say these power cords work great and save you a lot of money at the same time!
I have to agree with Fhydrant about the Edge power cord. I won one of them on Audiogon's auction, and was skeptic at first. But for $82, I wanted to experiment against my $800, Magnan Signature power cord on my amp, and using a $600, ElectraGide Electra power cord on my preamp. I first stuck the Edge power cord in where Electra was (preamp), and my jaw dropped!! Right away I heard an increase of resolution, and detail. I couldn't believe my ears on how much tighter the the mid-bass was. This Edge is not fancy but it did a great job with replacing a $600 power cord. The next test is putting the Edge in where the Magnan Signature power cord was, and by the way, the Magnan Signature is my favorite power cord, even against the $3000 NBS Statement power cord. I used the Edge with my Levinson amp, and bingo. The results were the same, more resolution and detail. The Magnan has more bass extension, and is more colored. But eith the trade off of more detail and resolution, I was blown away with this so called Edge, that comes without any packaging. Kind of a no frills but wonderful power cord. So to fellow audiophiles out there, if on the market for a great little power cord without the color and additives. Buy one of these Edge power cords. In fact I'm going to bid on a package of 4 Edge power cords because I'm selling all my other power cords and buying some more records and taking a vacation with all the money left over, for better results. Just to let you know, BMI is the company and he does not sell direct only exclusively through the Audiogon auction. To sum it up the Edge is an awesome value when upgrading your power cords!!!!!
I've tryed some very expensive power cords. The Granite Audio #555 is my favorite so far and doesn't cost an arm and a leg.
the Ensemble mega powerflux cords from switzerland, $680 for a 2m. and the FIM gold power cord, $1200 for a 6ft. are the two best power cords in the world at present. contact brian at Artistic Audio (949)362-6080. website, aaudio.com
I have found that the Harmonic Tech power cords were much better than the Synergistic Reference Master Couplers I had used with my Audio Research and Levinson gear. When you can buy them on the used market in the $125 range, it is hard to beat at that price. After far too many years of paying high cable prices that lose 50% to 70% off their insane retail price in a year, the HT line is a great value. I also find it essential to apply the XLO contact enhancer on all of my power-cords.