This question dedicated of 15 or 20 amp circuits seems to come up quite frequently and I hope some of these numbers help explain why most do not have a problem running everything in a HT setup off of a single 15 amp circuit.

Circuit breakers are not an absolute when it comes to their rating. Consider this..... A 15 amp breaker will carry a CONTINUOUS load of
15 amps (1800 watts) indefinitely
16 amps (1920 watts) for 15 minutes
19 amps (2280 watts) for 1 minute
50 amps (6000 watts) for 2 seconds
64 amps (7680 watts) for 1 second
90 amps (10,800 watts) for .5 seconds

This just shows why the breakers are not tripping every time a 770 charges its capacitors on startup. Our audio equipment also does not present a continuous current load like a toaster or welder, which makes the demand easier on the circuit.
Has anyone ever tripped a 15A breaker from listening to a movie or song to loud? I doubt it.

wingnut the $125.00 sounds steep.