Conditioners for power amps

220V is better in the US I have learned due to the fact that it is balanced power. In Europe which uses this voltage doesn't benifit because they are still at 50Hz vs our 60Hz which induces less noise. Plus PS Audio advised me to step up the voltage to get the maximum benifit from the P1200.

A good 40Kva+ isolation transformer is the best solution. Plug all your gear into it and run a 50 amp dedicated circuit. You won't need any overpriced high end snake cables or magic boxes with this.

I recently installed a Blue Circle 85.1 into my system. I am running my Audio Research directly into it with excellent results and a lower noise floor. The BC 85.1 is plugged directly into a dedicated hospital grade outlet. Good luck...