Can Music Reference MR9 drive Tannoy DMT 215 II

The DMT215 specs out at 101db @ 1w 1meter. That's pretty efficient so I'd say it depends how loud you like to listen and in what size room. If you like to listen at high volume in a large room I'd advise against it- the temptation to turn it up louder will be too great. In a smaller room at moderate levels you should be fine. I'd keep an eye open for a more powerful amp either way- you may not be happy with the bass articulation using the amp you have- by the time you can hear clipping it may be too late.

No problem. I drive mine with Art Audio Jota HC monoblocks with 22-24 watts per channel depending on choice of output tubes. Bass response is superb. With 100 tube-watts per channel, these speakers will blow out your eardrums before they ever clip. You're lucky to own the 215 DMT!

The sensitivity spec says 104 Db/2.83V @1meter. That is a loud speaaker! Seriously you could probably drive these with any amp you wanted to use. 100 WPC is more than enough headroom, I would think, to avoid clipping. I agree with the others.