Amplifiers are not 100% efficient, in that if they can drive the speaker with 500W, they'll be pulling more from the wall and turning that to heat. But you'll also not ever be driving all amps at their max at the same time. Everything but a Class A amp will draw less from the wall when they are playing at a lower volume.
Yes, the 350 Watts sounds about right for a plasma TV. My 50" Kuro draws 352 when displaying a completely white screen (power draw varies with screen brightness on plasma and CRT).
So lets go with the numbers you have there:
That's a total of 2399 Watts, divided by 120 Volts, gives 19.99 Amperes.
It's not a good idea to plug amps into power conditioners unless they're rated for it. Many of them (even this APC, I believe) do not respond well to the initial inrush of current as the amp turns on and attempts to fill its capacitors. If you plug the amplifier and the EP500 into the wall, and the rest of the stuff into the APC, you should be in good shape.
Last edited by ClubNeon; 01/09/10 11:32 PM.
