Originally Posted by jpmst3
You don't need a 30A circuit.
Modern breakers are designed to handle short bursts of larger loads.
I am running two pro amps,a receiver, and tv off of one 25A circuit and hit 120+ dbs all day long and have never tripped a breaker.
Due to motors requiring large amounts of current at start up, etc., breakers can pass mammoth amounts of current for brief periods of time, ... brief, yeah, but still entirely long enough to supply your gear without nuisance tripping.
I've experimented thusly, and powered everything I could find in my room on one circuit. All my front end gear, like my big Onkyo 5509 pre/pro, the rest of my stack, two high power, gaming PCs workstations, 65" plasma display, my entire active sound system comprised of (4)1kw surrounds, (3)2 kw LCRs, (2) 2kw EP4000 amplifiers, (2)2.4kw amps for subwoofers, all that ... no tripping.
For obvious safety reasons, I certainly don't recommend doing so, but the breaker will pass a great deal more than one thinks.
Typical residential breakers, like a 20amp circuit breaker;
Can pass 7-8 times the rated 20amp trip amount, .. for up to a second or more.
It can pass up to 3x the rated amount for up to 10sec or so.
The same 20amp circuit, can allow up to 1.5-2times the rated amount for a period extending as long as 30 seconds.
~140-160amps for up to 1 sec
~60amps for about 10secs
~30-40amps for as long as 30secs