Al & dweller: some two weeks later, using your advice for set-up and a lot of tweaking, I think the ASW 675 sounds better than it ever did in the previous system. FYI, I'm using it with a pair of B&W CDM 1 SE's, with the low pass frequency set at about 60Hz and at about 1/3 volume. The CDM 1 SE's low frequency response is 58Hz. I may continue to tweak as I listen through more music, but, so far, so good.
Thanks for your help.