I use two subs in my systems, but strictly for home theater. When doing any serious listening to music, I run only my Vandersteen 3A Signatures. (The sole exception is when I'm listening to full-range recordings of the organ, and then I like the extra depth provided by the subs.)
My HT room setup only allows me to place the subs outside the main front speakers. When I had only one sub on the right side of the room, the bass and LFE sounds was clearly directional. Adding a second sub made a big difference in balancing the bass -- now it is non-directional and fuller.
My HT room setup only allows me to place the subs outside the main front speakers. When I had only one sub on the right side of the room, the bass and LFE sounds was clearly directional. Adding a second sub made a big difference in balancing the bass -- now it is non-directional and fuller.