I know this is an old thread, but i Just installed a 20 amp dedicated line for my system, and installed a Cardas 4181 outlet. I was completely amazed and satisfied with the overall result.I am running Sugden MPA-4 mono blocks, and have a Saturn Audio 103 Power conditioner. At any given time i have 119-120 volts coming out of the wall, 1 have a solid 124Volts coming out of the Saturn feeding all of my gear. I highly recommend this upgrade, the results were way bigger than i had anticipated.
Hilroy48, I am glad you replied. I have 5 of the Cardas outlets now. I recently moved into a new house. Used the "normal" AC outlets for about 3 months before I called an electrician and ran 5 dedicated lines. I am with you, it's amazing and totally satisfying the results. I have used other outlets besides Cardas, and they are my favorites...
The power and ground connections on the rear of the outlet allow for separate circuits to be used. Each outlet can have 2 dedicated circuits on it. I have 4 20 amp dedicated circuits wired to two of these outlets in my system.