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Dedicated Line Advise

I currently have a 20 amp dedicated line run to my small HiFi rig; amp, preamp, CDP, TT, power conditioning. I wish to add a second line using the same electrician who has worked on my house. It looks like he used 12 gauge Romex last time.

What are the key facts that I should know in case he is not familiar with doing wiring for audio systems?
I'm talking about the installation at the breaker box, e.g., keeping proper phase and preventing a ground-loop between the 2 circuits.
128x128lowrider57
rodman99999
6,128 posts
 
Absolutely stay with the same phase for all audio outlets. Also- don’t run any of your 220V stuff whilst you’re listening. They are connected to both phases.  Their current draw and the noise the motors generate will more than negate any benefits.
lowrider57's avatar
lowrider57 OP
5,417 posts
 
But rodman, here in the Northeast we need to run the furnace.
lowrider57's avatar
lowrider57 OP
5,417 posts
 
I just noticed that the refrigerator is on the right, furnace on left. Should I keep line 1 in place on left and add line 2 to right side, same phase?
How important is it to have all lines on same side?

My noise floor is currently very low with Blue Circle PC.
rodman99999
6,128 posts
 
I feel ya!   I live in Indy.  The heat from the eighteen tubes, plus the SS bottom end amp in my system, barely warm the listening room.  Then again, I am the only one in my house.   You might make everyone in your home dress warmer.  You know-  priorities and all that.
rodman99999
6,128 posts
 
BTW- It doesn’t matter which side of the breaker box a 220V breaker is mounted on. It’s still connected to both phases. Your Electrician will know what to do, regarding getting your audio breakers on the same phase.  But- you might mention to him, you'd like the least number of appliances possible on that phase.
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