Small and Excellent Speakers

After demoing the new B&W Signature Diamond speakers, I'm convinced that small is not always bad. Their limited edition speakers are a 2-way floor standing loudspeaker with an effortless and sweat sound. Their Dimensions are:
36.6 x 9.1 x 14.8 (H x D x W) in inches. Weight: 55 lbs. Unfortnuately they are $18,000/pair.

I am looking to replace a set of 1991 JBL L7 loudspeakers with a smaller set of floor standing loudspeakers. They will be driven with a McIntosh MC402 solid state power amp (400w) and a McIntosh C2200 tube preamp.

Question for all:
Are there other small-footprint speakers that sound excellent and are less than $5,000?

Thank you.
My listening percentages are very close to your own. I have Dynaudio Focus 220s which are not bookshelves but I think sound great with Jazz. I like the Dynaudio line, especially the Focus and Confidence series. The Dynaudio Confidence C1 is an awesome sounding speaker that can be found used at your price point. Although I have never heard them, what about Harbeth's as an option?
You mentioned small footprint. I am totally biased, but the Gallo Ref. 3.1s are a small-footprint speaker with ENORMOUS sound capability. And you can buy them from Audiogon for $1400-2500/pr. - well within your budget.

Research them, I think you'll be impressed...