Hi Cagliostro, several things you mention in your post spell efficient solid state class A/B amplification or quality class D. I will give you 4 of my favorites. All of these run remarkably cool and are very efficient; they can drive low efficiency speakers with ease; have plenty of authority, but also musicality and subtlety; they are not warm per se, but rather on the neutral side of musical and extremely resolving.
1. Jeff Rowland (JRDG) 312 stereo -- This is my favorite and is the amp in my system. You will find my capsule review of it on issue 188 (December 2008) of The Absolute Sound, part of the larger review of the Vienna Mahler speakers, which starts on page 78.
2. Theta Citadel monoblocks -- I heard them many times driving Vandersteen 5-A speakers and they are extremely engaging.
3. Bel Canto Ref 1000 Mk.2 -- heard the Ref 500 Mk.2 little brothers at RMAF and they were very scrumptious.
4. Spectron Musician 3 -- several iterations of these available in stereo and mono.
If you would consider an integrated, I would also add the Rowland (JRDG) Continuum 500. . . very similar circuit as the JRDG 312, but also including a fabulous linestage. . . same circuit as the JRDG Capri. .
1. Jeff Rowland (JRDG) 312 stereo -- This is my favorite and is the amp in my system. You will find my capsule review of it on issue 188 (December 2008) of The Absolute Sound, part of the larger review of the Vienna Mahler speakers, which starts on page 78.
2. Theta Citadel monoblocks -- I heard them many times driving Vandersteen 5-A speakers and they are extremely engaging.
3. Bel Canto Ref 1000 Mk.2 -- heard the Ref 500 Mk.2 little brothers at RMAF and they were very scrumptious.
4. Spectron Musician 3 -- several iterations of these available in stereo and mono.
If you would consider an integrated, I would also add the Rowland (JRDG) Continuum 500. . . very similar circuit as the JRDG 312, but also including a fabulous linestage. . . same circuit as the JRDG Capri. .