Note that you can only get 2400 watts MAXIMUM out of a standard 20A 120v or 10A 240v circuit and class D designs are particulary wall-current hungry and even at their best, 60-80% efficient, so that "5000 watt" amp is at best, only going to put out 1920 watts, and that will only be on peaks. Anything above a sustained 600 watt output for bass will trip the breaker, because as frequencies drop, current demand increases even without an accompanying rise in output voltage.