Thanks for the responses. I remembered this being discussed before, but couldn't find anything using forum search. But after I posted I used Google search and found these links:

http://axiomaudio.com/version3

http://www.axiomaudio.com/boards/ubbthreads.php?ubb=showflat&Number=311302

JohnK, interesting information, thanks doubly. I realized that "crisp" meat almost nothing, but it was the best I could do. I didn't know about the effects of crossovers. I also realized I might be in the situation of liking less accurate reproduction, I was hoping someone had experience with the Advent and could comment.

I hadn't considered the QSs, as I had the impression they were best for movie application. I'm not sure my room supports them, but I'll research it more intently.

I'll also play around with the modes you suggested, at this point I forget why I settled on all-channel stereo.