Vandersteen x-over question

I recently heard the new quatro's and am interested in them. The problem is that the cross-over is supposed to run from the pre-amp to the power amp. I currently own a little tubed integrated w/o a pre-out/main -in jack. However my cd player does have a volume control. Do you guys think the cross over will work properly between the two?
Yes, I think it would work. Can't think of why not. Though it does not seem like the best set up with the extra pre amp stage doing little or nothing for you.

Call Richard Vandersteen... I think I remember him saying that this will not work for some reason.
I can't remember 100%.