Thanks very much guys for all the input -

The Room is about 18 feet back to front, and 20 feet side to side. Windows on the Back and Side wall. Vaulted ceiling from 9 feet on the side to 11 feet high in the middle.

I was thinking of a 2nd Sub, but space is tight and this is the main living space, so its a negotiation with the wife more than anything else. I'm going to start with one in any case.

I'll be sure to attach some photos along with the review when its all complete.

Regards,
peter