very detailed bookshelf monitor around $700 used

this theme has probably been beaten to death, but i'm shopping in the for a bookshelf speaker in the 500-800 (used) range for an office system. my room is about 10'w x 15'l x 10'h and i'll probably use a small sub. they'll be driven by an 85w/ch integrated and used 100% for rock and jazz of all types. my idiosyncratic criteria:
1. transparent, lots of detail, good imaging
2. good at low volumes;
3. unfussy about placement, as they'll be near a wall.
i've auditioned proac tablette, focal chorus/profile, sonus faber concertino, all of which have their strengths. your thoughts on any of the above, or anything else i should consider, would be most appreciated.