Nick, the reason for my previous post was that the 750 is a superb receiver and any concern about "current limiting" has no factual basis. If the impedance setting is left at its high setting, regardless of the impedance rating of the speakers, no limitation of the voltage from the power supply section takes place, and if the voltage isn't limited neither is the current or power which it controls. No subtle loss of performance takes place if the receiver doesn't shut down and none should be imagined; it either supplies the power or doesn't.
