Dedicated line help

Go ahead and run 20A circuit, it's basically the same cost.  I keep my noisy stuff on a separate power conditioner than my analog.  I also use ifi Wall wart adapters wherever possible and use shielded power cables and interconnects.

It doesn't sound like you'll have much of a power draw so 1 circuit would be sufficient.  When listeners have a lot more power, and are far from the main panel a sub-panel may be a better option. 

One other possible option is to run a 20A/220V line, and use a balanced power transformer in the room to step it down and give you balanced power.  Lots of watts available then for the least amount of copper.

Just my funny way of expressing my ignorance of the term as I never heard it before and could not find its purpose on line.

A few things I've learned, but I'm by far not the most knowledgeable in this area.

- Run dedicated lines, 20 amp circuits, oversizing the ROM-X wire to 10 gauge helps. 

- There debate to use aluminum armored cables as a shielding, not sure of the results.

- Run all the power lines from the same phase of the circuit breaker box (note: breakers alternate phases in vertical sequence.)

- Do not run the wires close together, leave at least 6" space between each wire run.

Anyone else can help with details?

You do realize this is a very old thread.  I think this was back when the OP had a Lafayette receiver and a BSR turntable.

@tjassoc said:

- There debate to use aluminum armored cables as a shielding, not sure of the results.

RF shielding is not the main reason for using MC (Metal Clad) aluminum armored cable. The main reason for using 2 conductor with insulated ground MC cable is because of the way the cable is built. The three insulated conductors are tightly spirally twisted together and held tightly together by the aluminum armor.

This cable build geometry greatly helps reduce an induced voltage, as well as noise, from being transferred from the two current carrying conductors, (Hot and Neutral), due their magnetic fields onto the EGC, (Equipment Grounding Conductor).

MC does a better job of doing this compared to NM sheathed cable. (Romex Trade Name).

2012 Seminar w-Notes v1-0.ppt - indy-aes-2012-seminar-w-notes-v1-0.pdf

Check out page 16. Read pages 31 through 37. Note the chart on page 35.

Note the worse branch circuit wiring method is single conductors pulled, installed, loosely inside of conduit.

Note: Solid wire, conductor, MC cable... NOT AC, (commonly called BX) armored cable. AC armored cable should never be used for audio branch circuit wiring, imo...