Can a power cord increase the resolution of an Class D (SMPS) amp by more than 5% ?

I have the Bel Canto ref1000m Class D amps. These will flip my circuit breaker if I turn them both on at the same time. Otherwise I never have a problem. The power supply seems to draw a lot of current when turned on, then not so much. I would expect less difference with power cords then with many amplifiers due to the relative efficiency. So I have not bothered to upgrade though its on my list of things to try someday. I use upgraded power cords with my pre-amp and DAC (Pangea) and hear clear differences there.

kosst_amojan
@geoffkait
Well, since I don't want cables that act like diodes, I'll avoid their garbage at all cost.

>>>>If you’re happy with the status quo then I’m happy, too. Everyone has to be somewhere. 

What's bad about it?  These are 500w/ch fairly high  current amps.   Every other much less powerful Class A/B amp I've had prior flipped the breakers much more easily.   If not for the efficiency I would have a real challange most likely.