I'm using a single JL F113. I am also very familiar with the system of a friend who is using a pair of JL F110's. So it's a similar situation: A single larger sub vs. a pair of smaller subs.
IME, there are advantages to both approaches, but I think there are more advantages to a pair of smaller subs. The most frequently cited advantage is that a pair of subs can be placed at different locations in the room with different peaks/nulls, resulting in a flatter frequency response when summed together. This advantage is significant, IMO. The only caveat I would offer is...
I believe that the use of sub placement to optimize frequency response can result in non-optimal transient response, which is audible as bass that sounds "slow" or "out of sync" with the music. That is a controversial topic, however, which you read about in another thread, if it interests you.
Good luck.
Bryon
IME, there are advantages to both approaches, but I think there are more advantages to a pair of smaller subs. The most frequently cited advantage is that a pair of subs can be placed at different locations in the room with different peaks/nulls, resulting in a flatter frequency response when summed together. This advantage is significant, IMO. The only caveat I would offer is...
I believe that the use of sub placement to optimize frequency response can result in non-optimal transient response, which is audible as bass that sounds "slow" or "out of sync" with the music. That is a controversial topic, however, which you read about in another thread, if it interests you.
Good luck.
Bryon