D is for subs and people who don’t know better, and think they are amazing,….nope,..you may think it sounds great, compare with A or AB, HUGE DIFFERENCE
I've heard a number of class D amps that sound better than A and AB amps.
in your price range, you’re not going to get proprietary parts are going to get junk buffers, industrial grade cheap caps and just off the shelf class D modules with inexpensive wiring.
This statement is false. Cost has nothing to do with getting the input buffer to perform (and sound) really good. You certainly want industrial grade capacitors- that way they hold up. Nor would you be limited to off the shelf modules...