Removing a ZERO from the price of amps

Doug Schneider says:

I found that the Eigentakt was not only powerful enough to drive the A1s -- it sounded as good as the Constellations. As I wrote in my review, “almost nothing about the A1s’ sound had changed -- the tonal balance was the same, the highs were just as extended and the midrange just as pure, voices were equally robust, bass just as extended, and the soundstaging and imaging were exactly as before.” What’s more, I also thought that if there were any differences in the sounds, they “were at best slight and, surprisingly, favored the Purifi.”

Wow, when I read this it made me do a bunch of research on the PURIFI amplifier modules.    The Audio Science Review of them is here https://www.audiosciencereview.com/forum/index.php?threads/review-and-measurements-of-purifi-1et400a-amplifier.7984/  and is also very positive.

It is very tempting to try these, although so far I only see mostly boutique brands selling them.   NAD has announced they plan to create a next generation amplifier platform using them.

The Purifi amps seem almost as good spec wise as the AHB2. However, based on Schneider’s description the Purifi seems to sound better than the AHB2 (which I will get).

When I heard Bruno et al say last year that their goal was to remove a zero from the price of an amp I made sure I kept my eye out for any amps with this Purifi module. I was disappointed that the only one I saw was the busy looking NAD. I heard a non-Purifi NAD amp last year that was simple, clean and sounding good for the price. I was hoping they would use the Purifi module in something like that instead of the jack of all trades version they put it in.

I would also be interested to see how Bruno’s new creation stacks up against the new-ish GAN amps.

Is this tech in these amps?

https://www.apollonaudio.com/purifi-1et400a-apollon-audio-monoblock/?gclid=CjwKCAjwr7X4BRA4EiwAUXjbt

Will these amps compete with expensive a and ab amps? Any subjective reviews? 

While Class-D obviously brings the cost down by eliminating large heat sinks, the other big cost saver is using a switch-mode power supply as opposed to a big linear power supply. In these big A/AB amplifiers massive linear power suppliers are the majority of the cost.