The very first GaN versus GaN sonic testReally!! your calling that a test, your priceless.
Bit rich coming from one, especially that had this kind of 70 degrees of phase shift down into the audio band in his own attempt at Class-D manufacturer, and tried to deny it. https://ibb.co/jfd6tqy
> phase shift > result of low order output filter > result of switching frequency between 600-700khz being too low.
SE-R1 Switching frequency much higher at 1.5mhz > results in output filter now being much higher > results in phase shift now being well out of the audio band > results in better upper/mids and highs, the Achilles Heel of today’s Class-D designs as many that can tell hear.