I own a set of Super 3Rs (older, with Fostex). I've paired them with a bunch of amps, including various cheap digital, sundry Chinese SEP/SET amps (Miniwatt, Musical Paradise, Dared and some others I'm forgetting), then finally the Almarro 205A MKII. The Almarro was great for my purposes, and so I stopped looking. If I weren't satisfied, I would've moved on to Decware.
The problem I have with Class D digital amps, is that while they offer etched detail in some regard, they suck out information in the midrange presence area. Just too dry where I want them to be sweet.
The cheaper SEP amps were too congested for my tastes, but the Almarro amp is just right for me. Bear in mind that my goal with this system was to impart a level of euphony to the often crappy source material I have on this system. YMMV
Cheers and happy listening!