obf, i presently have a pair of proac 1sc's in my rig, (same monitor audiojerry is using), on loan from a relative. he has only used them full-range in his system(s), either w/, or w/o the aid of a powered sub. my rig has a marchand xm-9 actively crossing the proacs to a pair of vmps subs. my relative commented that he's heard details from the proacs that he's never heard from 'em otherwise, so the marchand must not be taking away much if anyting from detail/transparency. he also said he's never heard 'em sound so good overall...
the only other speaker i've tried myself, w/& w/o the marchand, was my thiel 3.5's, which sounded better thru the x-over. whatever the marchand was doing to the thiels was outweighed by the benefits of losing the thiels' eq, & its bass driver not seeing much below 70hz...
doug s.