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.
Conditioners for power amps
Are there any conditioners that are beneficial to sound. I am using Aloia amps at 80 watts each. I have been told the Hydra's will help. One dealer uses Audio Tekne which raises the voltage to 126