Class D Amplification Announcement

@arafiq I run the AGD Tempo with a Backert preamp.  Best of both worlds.  

Never any love for LKV on Audiogon.

https://lkvresearch.com/lkv-pwr-3-amplifier.html

For the voltage-gain circuitry, the PWR-3 uses a Class A, zero-feedback circuit designed by LKV’s Chief Designer Bill Hutchins. This circuit delivers life-like sound due to careful design and component matching, including 40 hand-matched, discrete jfets. For the high current output stage, Bill selected the Purifi 1et400A module, which implements Putzey’s breakthrough.

You can assume that he has.  The journalistic integrity of TAS is unquestionable.  Furthermore, I have never heard of Mr Valin being proven wrong.  His hearing and experience are so accurate that they are virtually objective.

I immediately assumed that this was dripping with irony, but as the thread has developed I see that I was wrong.  Wow!

Pontifs going to pontificate.  Can we assume he has thoroughly tested all the offerings from Atmasphere, AGD, Merrill, etc. etc.?

Following on from @jjss49 's post, I agree completely with what he says.  For a good number of years I owned a Cary 300B-based SET amp, and no, no solid-state amp (be it A, A/B, D or whatever) can produce certain sonic attributes that it can.  That being said, the AGD does things that a 11-watt SET amp cannot.  The Tempo (slightly more powerful than the Audions) is hooked up to Harbeth 40.2's.  The other night I put on a CD of Bax's Symphony no. 3.  There are some thunderous bass passages, and this was the best I've heard from any system I've had in-house.  I'm more than happy with some quality 12AU7's in the signal path, but you could go 6SN7 or there are even a few preamps that use 300Bs.

I bought a cheap Emotiva class A/B amp, but it didn't do it for me, so I tossed in it the trash.  Based on that experience, I dismissed class A/B as an inferior amplifier topology.