Designing new room


I need some advice.
I'm thinking about building an addition to house my stereo. It's currently in a dry unfinished basement. Because the turntables are on a slab foundation, with concrete walls, it sounds great. 
The new space would be about 22 x 18 with a V shaped cathedral ceiling of about 14' at its highest point. Suspended hardwood over ply floor. Am I on the right track or will I be disappointed compared to what I have now. Details in Virtual Systems. Thanks.
128x128noromance

Concrete and stone do not absorb bass energy, wooden structures do.  Regardless of whether you like the current sound (seems you do), the new room should have dramatically different acoustics.  I would measure the current room (REW) as a baseline, then you have a direction if things are not initially to your liking. 


That 14’ vaulted ceiling could be dropped at it’s apex and designed with some wonderful diffusion since you have at least a couple of feet to play with. Dropping it definitely gives you some room to play with diffusion/absorption. You don’t see many rooms with well designed ceilings. Could make the room special for sure. My ceiling at 8.5 is tough to treat and remain esthetically pleasing. 
With the Quads, the ceiling is not as much of a concern as it is with point source loudspeakers. But the front wall (behind the speakers) is more so. Diffusion!