Nu-Vista 800 v. 600

jjss49: Great information. FWIW, I was a tube-rolling hobbyis for years, building a system based on meticulously restored ESL-57s and 1950s-vintage Quad 2 monoblocks.  I was pretty happy with that sound (after adding a sub) for 20+ years. Today, I’d like a more "modern" sound than that -- flatter, more extended response, less "smoothing" of detail, but overall as musical and beautifully voiced as the Quads. Having said that, though, if my living situation allowed, I could still live happily with ESLs for the rest of my life!

Nonetheless, the sound you describe is almost exactly what I’m looking for right now.

i have not compared, but i have the 600 and it has as much power as one would need ... my speakers have harbeth mon 40’s, super 5’s, and large spendors, as well as magnepans

it is a lovely amp with a silky smooth yet sufficiently impactful and transparent presentation, it just takes a little of the edge off of poor recordings that need it -- plenty of control and slam down below, as per top flight solid state amps... no softening at the bottom

the nuvista amps and dacs have always been musical fidelity’s finest work