Speaker help - short list needed

The Tyler Acoustics Linbrook Signatures fit your parameters perfectly, IMO. They appear to be going for just under $1500/pr. used nowadays.

Your own example, Sonus Faber would have been my other suggestion, so it looks like you already have that option covered. :-)

Room size is about 4k cubic feet to 5k cubic feet. I have only heard the Sonus Faber Luito and it sounded good to my ears. I have not heard the Grand Piano, but they are closer to my price in the used market.

Also, which model of Dynaudio are you suggesting? I like the idea of getting away from a metal tweeter. The silk and exotic materials seem to be less harsh to my ears.

At that price would be hard to beat Vandeersteens as a sure thing,tho I belive some KEF models can be had that will best them in clarity and musicality,

Agree on Vandersteens...they have always (as long as i can remember...back to mid 90s) positioned themselves as great value for money speakers that do a lot of things well that other speakers cannot touch...and many other things at a level that is at least on par/competitive.

As for KEFs, my own experience is a bit dated...the first few generations of uni-q felt like they could bite a bit. Perhaps the latest 2 generations are better...again, my own experience is 2 generations out of date, so one person's opinion regarding s/hand KEFs...