Optimal room for org sonus faber cremonas

Hi all

I will soon be having a major house inlargment where i have the oppotunity making my owen dedicated hifi room.

My speakers are fulrange crmonas driven by linn klimax solos.
Basic sound of my system is very very deep dynamic bass and openess.

The room will have a v shaped seeling .

My owen thourgts is a room there is somthing like 30 feet times 20 feet .
I hate overly damped room and il much rather have a bigger room with less damping , and after hearing the cremonas in my dealers fairly large untreated room i diffently got the imprission that the cremona wassent designed for heavly damped rooms with thick carpets.

so my owen thourgts is having a solid wooden floor directly on concrete, and then use diffusiors on the walls.

but eny advice or pointers regading the MAX size room for the org cremonas or other inputs for my plans with be greeatly appriciated.

regards