@milpai I owned Parasound A21 back in 2015. Very good amp but as you said it lacks refinement. In the last 15 years I went through a slew of amps -- tubes, class D, and solid state. Owned Audio Research, Luxman, Aavik, VTL, Vitus, AGD Audions, Rogue Audio, Raven Audio, and a few more. I eventually ended up with Accuphase A-80. I can say without a hint of exaggeration that this is by far the best amp I’ve owned. No contest. It produces a sound that is harmonically rich, tonally dense, and perfectly balanced from top to bottom. Absolutely no lack of bass whatsoever. It’s an amp that caters to the music lover first and foremost. Period.
Do yourself a favor and get the best Accuphase you can afford. It’ll pair beautifully with your Backert.

