Two subs correctly placed will help with the room modes and standing waves that all rooms have.Correct placement is more important than choosing which brand is *best*.You can research this before making a decision. The majority of bass in music goes no lower than 40hz.
Subwoofer suggestion
Hi,
I have a pre-amp/amp 5.1.2 setup with 200w amplifiers and B&W Speakers/Sub. Currently I have the B&W ASW610 subwoofer and looking to upgrade it to DB4S. I don't go very high in the volume and even for the current subwoofer, I feel that I barely scratched the surface with the bass. Is upgrading worth it? What difference will the DB4S sub give?
Appreciate your suggestions.