Does Dynaudio match Mcintosh MC275?

I would have to say YES. Go over to Audio Afficionado and ask - lots of good knowledge there and friendly members, too.

IMO,its ok..much better amps that pair with Dynaudio..Pass labs comes to mind

I think that would be a very good combo. I would not run SS with Dynaudio.

They should sound great. I'm driving a pair of C1 Signatures with and Octave V70se tube integrated. Great match for the money. I even tried tried an Octave V40se with the C1's and that was is also a great match. Tubes in my opinion have a great synergy with any and all Dyns. The only SS that I've heard that to me is better is the Burmester 911 MKIII's. Sounds like Pass may be in the same league as the Burmester but I've never heard Pass Labs. There could be other that I've never heard.

I have heard my Dynaudio Focus 160 speakers with three different tube amps, individually quite different ones. Tubes and Dynaudio is very special, as the gloroius softness and mids of the speakers can be really wonderful. First, a Jadis Orchestra 2x40 watt amp. Weak bass but everything is so good its hard to believe. Really. Audio Research 2x115 watt is like a more detailed SS amp. The size of the amp is the weakness, its big and ugly, otherwise extremely stable and great but not as magical and close in the mids as the Jadis. McIntosh 2x75 watt, that I own, is extremely good with voices and horns and guitars and many other things. Not for techno lovers, but for most other music styles it is great. Not as controlled inte bass as a 100+ watt amp can be, that's important to know! Good luck!