@onehorsepony I owned the Thiel CS3.7’s and I think you are being a bit hard on them. They are a very good speaker, though I think the drivers on them are surpassed by Beryllium and the even better Zylon (as detailed but not harsh).
This what I think is an all-round star speaker with tech that is hard to match by most builders. I own them and drive them with a CODA #16 amp.
Yamaha NS-5000PNST 3-Way Bookshelf Speakers with Stands | Hi-Fi Heaven
These are huge speakers with a beautiful piano finish. You need some volume in the room to make them work. A Thiel CS3.7 is a good guide to the room needed for the NS5000.