Is McIntosh 6900 enough for B&W 802D?

I know it's probably not but that's what I have for a moment so can it at least sound decent with them until I upgrade to bigger amp? 802's are one of the 2 speakers I'm considering now (Vandies 3A Signature are another) and the question is really important given the fact that I can't afford both the new speakers and the amp upgrade at the same time.