High end bookshelf speakers for Small room

gryphongryph +1 Graham LS5/9... I use an Aesthetix, Calypso Sig & Chord SPM-1200e on mine; no sub required in my med 18' x 26' size room. Been through a ton of standmount speakers & these are my jam!

(today anyway, lol)

Wilson Benesch Endeavour. Exquisite detail, flexibility, & musicality. True reference performance when paired with reference grade electronics and will work in small rooms as well as large rooms.

I purchased the Fritz Carbon 7 II several months ago after watching a review posted by Dave on Youtube...one of the best audio buys I ever made all things considered. Fritz speakers are a incredible value (a steal in my opinion) and Fritz is a really good guy who cares about customer service and a passion for audio and will discuss your application with you (room size, equipment currently in place) before selling you gear. It would appear the OP is seeking a very high end set of speakers but if you are looking at under $10,000 for a set standmounts do yourself and your wallet a favor and check out the Fritz line A+.

TAD or ATC if you have the $$....You could also consider a pair of Audio Note Ks...Enjoy the search

And...DeVore O/baby

https://www.stereophile.com/content/devore-fidelity-orangutan-obaby-loudspeaker