I'm in the process of setting up my HT with a GoldenEar ForeceField 3 sub.
For it's size it is has a lot of output but it just doesn't pressurize the room and is a bit boomy. I've played around with it's placement in the available corner without much of a change. My primary issue is around how different the bass is at different seating positions. Admittedly, my couch is 14 feet wide but it wasn't a problem for my old 10" ML Dynamo with 360 watts. So, I want to even out the response in the room for most seating positions. I have my bookshelves crossed over at 60 Hz and my sub set up to support it. Audyssey was run at 7 listening spots on my couch and it turned the gain down as much as it could (-12.0 db).
So, my low-frequency experts, given what I've said above, do I:
1) Get a second sub and place one between each towers and cabinet (see Dual Subs Option 1 below)? I understand a 2nd sub is generally recommended but I worry about them cancelling each other out (but maybe I shouldn't worry about that). I don't have much space to work with between the towers and don't want to keep spreading the L and R channels out. But if it sounds good it's really only another 6"-8" total.
2) Get a second sub along the right side of the room (see Dual Sub Option 2 below)?
3) Get a larger sub in the to replace the GoldenEar sub to better pressurize and forget this dual sub nonsense?
I like the idea of dual subs and my Marantz supports it but if it doesn't sound good and address the problem I'll just get a larger sub and be done...
Your thoughts appreciated!
Pic of setup and potential dual sub placement
A few diagrams that might be helpful to answer the question....
Dual Subs Option 1
Dual Subs Option 2