True Bookshelf Speakers: Acoustic Research AR-2ax
11-1/2" deep to fit IN a bookcase, no ports, volume controls to adjust the tweeters and midrange in the listening space is vital to their success, no need for a sub.
I’ve had a home office since 1991, commuted to/worked in NYC for others, then my own home based business for many years, various compromises, then after retirement, just before covid, I re-configured my office with proper imaging the priority, my chair/keyboard/Monitor dead center on the speakers mounted at seated ear level.
Various speakers, bought a pair of Wharfedale’s with a single sub, then a conversation about ’what do you wish you still had?" led to re-acquiring and restoring the speakers I had while in college that were stolen many years ago.
For my shop, sounded soooo good, I put them in my office and restored a 2nd pair for my shop, bookshelf, stand-up height at my work counter down there
https://www.audiogon.com/systems/10092
On top of the right speaker, I bought new white linen, just haven’t taken the time to change the fabric.
My point is, the 4 different spaces led to different favorites, if they die, I would just replace them without any further research.