Jeff Rowlands Amp and Dac vs. VAC amp and DAC

Mapman,
Yes I see your point, expanding the potential field of speakers that could be used successfully.
Zero NFB amplifiers would require more specific /careful speaker matching.  But oh so good when that match is right  😊.
Charles, 

I have had very low NF SS amps designed to sound more like tube amps and they had their unique charms.

The best products are always designed by the best engineers capable of making the right design decisions and backed by a manufacturing process capable of realizing it reliably. Well designed and made products + system synergy is everything when it comes to performance and results. These are all top notch product lines being discussed so the key is to get the synergy right and each amp line is significantly different in that regard..

I wish it was easier to audition the amps with the speakers. It is an expensive journey and I won't have a lot of time with the pairings. So, let's all hope my ears (and my heart) are open to the music. Thank you again and again. 

Hi Rinpoche,
You are correct in that as good as home auditions are your time with the amplifiers is understandably limited. However it’s still a very worthwhile and valuable exercise. You reference using your ears and heart, absolutely the right approach. Choose what musically touches you the most deeply and you’ll be fine. That's what music lovers do and you're a self confessed music lover. 
Charles,