If a receiver or amp consumes more power (amps or watts) than another receiver or amp, does this mean that the output will be higher? Say two receivers are rated at 5x100w, but one consumes 4.5 amps while the other consumes 5.5 amps, will it make a difference? I think this slight difference may make a difference. The Onkyo and Denon receivers for example, as they get mroe expensive, the use mroe amps. If the power concumption does make a difference, is it a big difference?