McIntosh 6900 and Vandersteen 3A Sig a good match?

I opened the similair thread in the speakers section but it was more about the placement in my room. Here the question is should my Mac 6900 be a good match with Vandersteen 3A Signature? After all they are 6 Ohm and 6900 is an autoformer amp with pure 200Wt into either 4 or 8 Ohms.