You have way more capacity than you’ll ever use (you could likely run all that on a single 20A circuit), but no harm. My only comment is that when you use multiple circuits you increase the possibility of ground loops, if all of your circuits will have the same common ground at the sub-Panel you should be ok. If he’s installing 240 divided into two 120 phases, I’d be inclined to use the same phase for all your gear.
Last Edit: Nov 13, 2018 10:39:17 GMT -5 by AudioHTIT
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I'm worried that the amps *might* trip the GFI's? Is this a valid concern? Electrician tells me that I should be good
My system has a 2000 watt multi channel amplifier, and a 1250/3000 watt peak classD, split between 2 15amp. Breakers along with everything else. No water in the room and no outside environment = no GFI.
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Turn-on surges will not trip a GFI (Ground Fault Interrupter) unless there is a problem with the safety ground.
Where I have seen problems is when they install the new arc-sensing breakers (AFCI = Arc Fault Circuit Interrupter). They are required in our area for bedrooms but not elsewhere so hopefully not in your case. After going through three of them with my electrician I finally installed an old-style GFI myself and moved on... Our treadmill was tripping the durn thing.
HTH - Don
"After silence, that which best expresses the inexpressible, is music" - Aldous Huxley
Over capacity is NOT an issue. You'll be fine and are set for Any Future upgrades.
GFI won't be a problem though they DO wear out over time and multiple 'trips'. My wife's hair dryer will sometimes cause a trip.
As for Bill, above? Your 'duty cycle' controls your need. A 15 amp circuit is 'rated' to 1800 watts, but LONG TERM derate is 20%. You do the math.
Running 'normal music' you are far BELOW your 'peak' ratings. So not worry. Music might have a minimum 10db 'crest factor', so if you're cruising along at 10 watts, you're dealing with 100 watt peaks. You might be able to wrangle 2kw from a 20 amp service but never from a 15. At least not 'continuous'. A/B amps are only so-good at turning electricity into power output, so you might only get 50% OUT vs what you put IN. The Rest will be HEAT.
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