You may have a single, fixed listening position, but the sound that you are hearing is coming from the whole room. And a single sub, no matter how well placed, will tackle all the acoustic anomalies that the room has.
Single vs. Dual Subs
It's common wisdom that dual or multiple subs help smooth out bass response in different spots in the room, but what about for a dedicated listening room with a fixed single listening position? What do two subs add to the music presentation that a single dialed in sub is missing provided that single sub is dialed in perfectly for the listening position?
Caveat: not interested in the SWARM method or multiple subs at the moment, strictly comparing single to dual subs
Caveat: not interested in the SWARM method or multiple subs at the moment, strictly comparing single to dual subs