Time for dedicated outlets!

2 very important considerations for installing 2 dedicated 20 amp duplex AC outlets:
1) Proper wire size for a 20 amp circuit is 12 gauge or possibly as large as 10 gauge...3 conductors. Be careful with anything over 12 gauge. 
2) The 2 circuits must be on the same sevice panel buss or you will create a giant antenna and have enormous ground loop hum.

It may be more economical and avoid the creation of the potential antenna effect by just installing a single dedicated 20 amp duplex AC outlet and using a large 20 amp multiple outlet strip. Sometimes simplicity trumps complexity. This technique insures that your dedicated outlet will not have inherent ground loop hum and will supply the power you need.

There are also different grades of breakers depending on the manufacturer of your panel. If you're supplying the parts then do some research on breakers as well. +3 for 10/3 romex.

It will be even less expensive if you "pull" your own wire if you can. No sense in paying a licensed electrician to do grunt work. Just be sure to leave enough length of wire on each end to work with.

There are also different grades of breakers depending on the manufacturer of your panel.
If you're supplying the parts then do some research on breakers as well. +3 for 10/3 romex.  

 Per NEC only the panel manufacture breakers can be used in the panel. Breakers Listed for use in the panel are listed on a label found inside the panel. Usually on one side or the other

 +3 for 10/3 romex.

What do you do with the bare #10 ground wire in the Romex cable?

creekmaster

10-2 use silver paste to coat the wire ends before attaching to breaker ,better yet
would be to install breaker panel sub box near where it enters wall and use a grounding rod driven in to the ground 12' 5/8" dia.,then you eliminate ground interference from main supply and of course use a audiophile outlet preferably quadplex and also use silver paste with the connection

Oh no, that's a violation of the NEC. All grounds must be bonded together at the service panel; anything less than that is potentially dangerous.

As for the silver paste, I'm not sure that meets code, either. Whether it does or not, I don't think it's a good idea. You want clean, tight electrical connections.

perazzi28 is correct. #12 wire is rated for 20 amps and #10 is rated for 30 amps. If you use a 20 amp breaker it will trip at 85% of rating so what is the point of going to #10. Run a 12/3 romex that is a neutral with two lines and a ground. This will give you two dedicated 20 amp cicuits with one run. Same labor cost. By the way lots of us in the electrical fields are also audiophiles.