I don't know if you own a power conditioner, but if you don't, I would consider purchasing the Audience AR1p. There's one up for sale now at $300+. (no, it's not mine). This may well make a bigger difference than a new power cord, depending on the quality of your existing power. In any case, if you don't like it you can sell it at a minimal or no loss. BTW, You can plug a Wiremold strip into it and have a conditioner for the rest of your system that sounds much better than most, IMO. Good luck.