Full range speaker recommendation

Used pair of Vandersteen 5As.  Pretty easy to dive, powered subs, plenty of room adjustments, and they get better with associated equipment.  Have had most of the speakers mentioned above and these still play music for all types.  Not a Vandersteen fan boy.  They just do a lot of things correct and you can adjust to your taste.  We use ours in our music room with 30wpc class A tube mono-blocks.  Pretty amazing sounding for around $6K used.  Plus good resale value.

Many great recommendations here (I'd expect nothing less). Just wanted to mention a smaller provider, Tyler Acoustics (tylersacoustics.com). I bought my first pair of speakers from Ty Lashbrook way back in 2004, and he just made me a new pair recently. If you buy-in to the fact that all commercial audio equipment is built to a price point (which makes sense), and thus a mix of quality and (very often) somewhat lesser quality where you can't see it (cross-overs, wiring, connectors, and so on), you can't beat the price/quality ratio that Ty offers. His stuff is all hand-made to order, the build and craftsmanship are top-drawer, and all internal components are top quality. They sound great, and Ty is just a super guy to work with. Again, worth checking out for grins, if nothing else. Just wanted to mention, 'cause like I said, Ty's a great guy, he's been doing this for a long, long time, and a hidden gem, IMHO.

JM Reynaud Abscisse Jubilee floor standers…..beautiful midrange and full bass.

Two full range speakers (old school) for a large room ESS MONITOR’S or a set of Acoustic Research AR-9’s both GREAT sounding if you have enough power

For floor standers, Revel Studio 2 speakers or JBL Project Array 1400.  Both can be had used for that price but may require patience to find. I’ve owned over 200 pairs of speakers over the last 50 years, from many, many manufacturers, and those are the best I’ve found in your desired price range.  If you lean more to classic rock than jazz, I think you’d be better off with the Array 1400s.  
 

For stand mount, listen to Dynaudio Heritage Specials.  You’ll be astonished.