lots of good advice and ideas.
i would recommend getting some professional advice on the effect of the shape of your ceiling on the sound. not all 'cathedral ceilings' are the same.....the solidity of the structure and the surface materials will have an influence as well as the exact shape. with a 15' width and height it might be a problem in terms of room nodes.
fixing it later will be expensive and a pain.
the room has the potential to sound very good. a purpose built 2-channel listening room is a joy.
i would recommend getting some professional advice on the effect of the shape of your ceiling on the sound. not all 'cathedral ceilings' are the same.....the solidity of the structure and the surface materials will have an influence as well as the exact shape. with a 15' width and height it might be a problem in terms of room nodes.
fixing it later will be expensive and a pain.
the room has the potential to sound very good. a purpose built 2-channel listening room is a joy.