I agree with Jaybo - I would add that latest Martin Logans are pretty good in this department - low level play with nice mids - they seem to have integrated the conventional woofer well with the narrow curved panel design (gets excellent dispersion).
Celestion for 2008?
I'm looking for a speaker made today that would do all the things that the Celestion Sl600s and Sl700s did so well -- image like crazy, provide a to-die-for midrange, and -- and this is very important -- sound very good at low listening levels. I'm not worried about a lack of deep bass. What the old Celestions had in that department would suit my needs just fine. Any recommendations would be greatly appreciated. Thanks.