[jdandy]

Matt.......You will have no issues powering both MC501 power amplifiers from a single dedicated 20 amp circuit. The MC501 draws a maximum of 6.6A at full rated output. The preamplifier and ancillary gear will be adequately powered from a second 20 amp dedicated circuit. I would suggest you run a third 20 amp dedicated outlet in the vicinity of where you may want a subwoofer positioned, if not now then perhaps in the future. It's much easier to install these circuits while the walls are open. Ensure the dedicated circuits are on the same phase in your service panel. An electrician will understand what to do when you give him that instruction. Do not share any neutral wires or grounds between the dedicated outlets and the panel. In other words, go straight from the dedicated outlets to the panel. Use #12AWG solid copper wire for run lengths less than 50 feet. Use #10AWG solid copper wire for runs that exceed 50 feet in total length.

I also suggest the minimum grade receptacle to use would be a hospital grade outlet such as a Hubble or Pass & Seymour 20 amp hospital grade outlet like the one in the photo below. This receptacle allows a 15 amp or 20 amp male cord connector to be used and provides very specific and secure clamping. These receptacles are also available in Decora style if that is your choice. Hope this helps.