" the d-sonic is just much more powerful. so the dynamics are, understandably, far and beyond 70 watts, of course. and compared to the parasound a-21, although another great piece, which I sold years ago, the d-sonic is still the better amp for me"
Power and watts speak for themselves. WHen you need it, you need it. USually the more, the better.
Hi eff Class D amps in general provide power/watts in a small and one would think relatively affordable package compared to big costly heavy monster amps needed prior.
I suspect one might always nitpick, but if a good amp with lots of power/watts is what's called for, most any modern decent Class D amp may be the solution.
There is a big difference between a scenario where an amp is challenged to drive speakers and one where it does it effortlessly, as these high power Class Ds in general are capable of. A lot of the other good things we like about good sound just seems to go along with that, detail, imaging, etc. Overall system synergies and toanl balance, etc. is still something to deal with, but if the amp is up to the task of driving the speakers, that opens up many other ways to address as needed.
Little down side in trying on of these things I think if high power and efficiency is what is needed, whatever might be inside. I'd rather know, but in general the basic benefits should exist with most similar spec'ed amp boards used I would think. Tweaks from there might be different?
THat's what I'm thinking. I'm curious if others agree or not?