Don`t have a lot of exposure to quality small bookshelf speakers, but my B-I-L`s pair of purchased new either in the late seventies ~early eighties: Infinity Infitesimal with the Watkin woofer, & EMIT tweeter sound excellent, and only need a quality 15" active subwoofer to sound full range octaves superb complete, from a full range of music genre, IMO/E !
My 1991 purchased for living room`s center channel duty (same tweeter/midrange of the Mc. main line array XRT-22s, in use at the time) Mc. XR-1 bookshelf speakers are a good second runner up to the Infinities.