I like your Peter Aczel quote and your NO MQA sign. MQA also deserves a Paul W. Klipsch bull$hit Yellow button as a Distortion Generator. PWK was all about lowering Intermodulation Distortion in Loudspeakers, which is 1,000 to 1 Million times worse in Loudspeakers vs. Power Amplifiers. Yet still...
You can't go wrong with any of them. I got NC 400 kit, sound unheard, 8 years ago. the 500 is even better. However, the 400 is so good, I see no reason to upgrade. I even sold a Pass Class A amp after I got bruno Putzey's creation.
Lots of square waves in that Paper! Since moving only one electron as the smallest electrical event occurs.........matter is Digital, accumulation of this is Analog.
Operating a MosFET transistor as a switch, with low Rds On with an appropriate Toroid choke on the ass end, to turn it Analog again, is still more semantics arguments. The voltage swing notwithstanding the principle operation as a Switch. None of us are totally wrong. Capacitors excluded.
"Nothing" to do with Titles. After working with Dr. Carver Mead 22 years ago, I'm convinced ALL Digital is Analog. We just define voltage swings and thresholds with signal integrity as boolean algebra and code. Specific disciplines always apply. Fundamentally, we argue over semantics.
I don't think I could without Amir's tools. (even with the abx box). Its and extra Zero in the 0,00000Something down below and only a 0.97 db difference in power output.
Duh. It's what demands proportional Signal to Noise ratio, which is wasted via idiot producers in the Loudness Wars. A systems approach that lets us do our own Dynamic Compression is what Audiophiles need.