Dedicated line w/ upgraded parts or power cond?

Lacee,

I also like to attach the dedicated ground wire to the main ground wire directly instead of inside the panel to the ground strip where all the other ground wires are connected.
06-02-13: Lacee

Per code the safety equipment ground wire has to connect to the ground bar in the electrical panel the branch circuit is fed from.

(Exception: An IG, insulated isolated equipment grounding conductor, for an IG grounding type receptacle can pass through a sub panel/s and connect to the main service electrical panel where the main service neutral is connected to earth.)

Also,I am now upgrading to 10/2 romex and 30 amp breakers,yes it's overkill,but not dangerous is it?
06-02-13: Lacee

#10 awg is fine but if the receptacle is a NEMA 5-15R (15 amp) duplex receptacle the breaker can be a 15 or 20 amp max per code. 15 amp breaker, 15 amp branch circuit. 20 amp breaker, a 20 amp branch circuit.

If a NEMA 5-20R receptacle is used the branch circuit breaker has to be a 20 amp. Minimum size awg wire #12 copper. Again #10 awg can be used. You just cannot connect the hot to a 30 amp breaker.

http://www.aes.org/sections/pnw/pnwrecaps/2005/whitlock/whitlock_pnw05.pdf
.

Thanks folks.
Much appreciated.

My receptacles are 20 amp,the romex is 10/2,so I will only install 20 amp breaker.

Mental is confirming using power conditioning to clean up the dedicated audio line if I read him right. I agree-essential.