I'm not really sure what is trying to be accomplished here. I can comment that I have built no less than a dozen class d amps from modules. TA2024, TA2020, TA2022, Tk2050 TAS5613, TAS5630, TDA7498, TPA3255, IRS2092, a couple different Sure/Wondom tri path boards..... yada yada. The Tri paths, when critical parts were switched out and a solid power supply was put under them, they all sounded at least decent. A couple ended up very good. As far at the argument that an amp was tested and it was 10 percent distortion??? Take a world class Class A amplifier and drive it hard enough, it will produce high distortions too. The question is "Can some of these little Class D amps sound good?" You bet... Beware, some of the Class D amps that I built were not good. The TPA3255 That I mentioned earlier turned out quite good. as did a Wondom 400 what per channel board, sorry, I don't remember the chipset on that board... it was called 400 watts per channel, when I was finished, it spec'd out at around 60 watts to 8 and 120 to 4, but either way, ended up being a nice sounding little amp. I am only saying that when used with the right speakers a few of these little amps can perform admirably, no, not quite world class, but very satisfying, good performing amplifiers