Class D amplifiers have very little phase shift

but that is horse chasing after barn doors are open, and there is always a better way.

Sorry, I can't make out what you're trying to say here.

In a self oscillating class D amp, the feedback itself is used to correct phase shift. Its pretty effective in this regard.

But I've been listening to a class D amp with zero feedback, switching at a fairly low frequency (400KHz), with a rather conventional filter, and it does not sound like phase shift is a problem :)


The article at the link is correct. Understanding filter theory is really helpful in conversations like this. If only one party understands the theory though, its very difficult to make any progress.