For us mortals that don't have a Lexicon, b/m is an issue. Please see my post on the Denon universal player I just bought. Fully digital b/m, but I haven't licked the problem fully even yet.

I also have the DV-45A, and no bass probs. Of course, that because it had no b/m! I used an AudioControl PCA Series III to cross the mains over. Worked pretty well, but not as well as an ICBM.