I don't have experience with the Puccini or the Linn myself but do own the Audio Refinement and I love it. Too refined like the other poster said? Not to me, I find it a nice blend of solid state and tubes, sounding refined but still very up beat and has excellent pace. I find it works great with classical myself. But in my view you probably wouldn't go wrong with any of these amps. You have obviously done your homework, in that all of these amps are more refined and would work well with classical.