A caveat: don't rely too heavily on Harley as an expert. Seriously consider "The Master Handbook of Acoustics" by F. Alton Everest. In short, the lowest freq. that your room will successfully accomodate is found by the equation: freq = 565/L where L is the longest dimension of your room. If your room is 10 ft long, then the lowest freq would be 56.5 Hz. This is called the first axial mode of the room. Hope this helps.
speaker specs & room matching
Does anyone have any suggestions on how to use speaker specs as a guide to room compatability. Is the rooms volume a starting point? Is it the distance from speaker to listener (at vertex). Is this all vis a vis a -3db, -6db , ect, of the speakers measured low frequency response? Or something different all together?