Hi bman84,

As Mojo mentioned it is all about the available peak power to avoid any possibility of amp clipping no matter the dynamic range of the source material. The actual continuous power consumption will be easily handled by a normal wall circuit. This said, I don't think you would want to turn on all the amps at the same time or the inrush current may cause the breaker to blow. There is a lot of capacitance there to handle those dynamic peaks looking for an initial charge.

Ian Colquhoun
President & Chief Engineer