I am working on a new great room setup that will primarily be for music. Unfortunately I am very limited in sub placement do to previous wiring and lack of walls in room. I am probably stuck with one sub. Room is 45 x 50 with 30 ft ceilings for largest part. I am just looking to supplement stereo speakers. In reviewing many of the brands here it appears that in many cases one can get better control/equalization with a separate amp. Is this a good idea for someone with limited placement options?