Most, if not all, of the class D amps at the large scale pro audio level have that DSP built into the amplifier itself. More and more speaker manufacturers are also selling their own amplifiers (not necessarily made in house) with limiting that takes specific drivers into consideration, along with FIR correction for the whole box.
I've also used a few that you can tell exactly what kind of power you're hooked up to (120v @ 25 amp perhaps) and it will draw just up to that limit and stop. Neat stuff
I've also used a few that you can tell exactly what kind of power you're hooked up to (120v @ 25 amp perhaps) and it will draw just up to that limit and stop. Neat stuff