Since you're going through the effort/expense, and since you ordered 2 outlets, if they are being installed in the same location, get 10/3 or 12/3 wire. It has a shared neutral and ground and separate hot wires for 2 circuits. If they are being installed in the same gang box, be sure to use a double breaker (usually used for 220V applications). This will ensure that all power is off to the entire box in the event that you or somebody else ever want to work on that outlet in the future.Shared neutral? Not good for audio equipment. One of the main reasons for dedicated circuits is to decouple the power supplies of the audio equipment from one another. Especially digital from analog.
01-03-09: Mmadden28
Another problem with multi wire separate circuits, shared neutral circuits, is each hot conductor must be installed on opposite Lines, legs, of the electrical panel. Audio equipment that is connected together by ics should be fed from the same Line.