A well-designed subwoofer should give you superb bass down to 20Hz without bloat in such a room. It will have a falling frequency response starting around 35Hz that would be flattened out by room gain. My REL Storm III, for example, doesn't boom at all in typical apartment living rooms and it improves practically any speaker.
Too much bass in room with sub?
In a room 20 x 15...is it wise to opt for a musical sub that goes to 20hz, 30hz,etc...or does it matter? I am trying to eliminate exaggerated bass...is there a scientific equation to caluculate(dont laugh!)...thanks...