Do you have a dedicated 20 amp circuit for your listening room with hospital or better grade outlets? If not before you do or buy anything we would suggest you invest in one. Some people think power conditioners have a negative affect on there equipment it is easy to determine if that is true just listen to it with it in the system and then without it, then determine which sounds best to you. Personally we think power conditioners with surge protection is cheap insurance against your equipment getting destroyed or even better and cheaper unplug everything when you are done. As far as changing power cables, after you get a dedicated circuit installed go to used cable.com they have many selections in power cables at usually half the price of retail but more important they have a 30 day return policy. In your case you can try a cable that was originally $800.00 and if you don't like it return it or get another one to listen to, you can't beat that kind of service it is certainly better than getting stuck with thousands and thousands of dollars of cables that you or your system don't like. We think you have some pretty good cables already but there is better, the trick is finding the right one.
"Power Cords-More Recent"
Have a two old PS Audio power cords in my stereo system that I purchased used in 1999 when I lived in Dublin Ohio (don't remember the model) for about $400 each. One is connected from my CD player directly to a Panamax 6 Protection Path, and the other is connected from my integrated Amp directly to a Panamax AC 5510 AC Regenerator. My ACRegenerator is connected to the Panamax 6 with an MIT Z Cord II power cord which is plugged into the wall. My question is does anyone know whether current power cords are significantly improved in sound quality to justify replacing my current power cords with new ones? I don't intend to break the bank so $400 each is as much as I want to spend. I am using Kimber speaker cables, digital and interconnects throughout my system so in addition to Kimber I plan to look at power cords from Audio quest, Morrow and Wireworld. Also, Should I just connect both power cables into the ACRegenerator and stop using the Panamax 6? Your thoughts please.