Good evening!
My home theatre room is in my basement, which means a carpeted cement floor, and 2 of the walls are exterior so they are the big cinder blocks...both of which have a big impact on bass as far as I can tell. When I had my main setup on a 2nd floor with no cement around the room at all, 1 sub was more then sufficient but now by being in a basement, even 2 subs+decent speakers can't seem to pump out much rumbling. I have 2 subs currently (sub12 and RW12d) and i am looking to add a 3rd. I have tried to adjust them as much as possible to have a deep but not punchy sound to them and I am still not satisfied. The room in question is approximately 15x30, with the couch being in the center of the room (15' away from the tv) - do you guys think 2 subs should be more then enough or would 3 seem reasonable? furthermore should I be trying to have all of the same subs or is mixing+matching ok? I can get a good deal on a few different subs currently (XW-500d for $400, RW12d $279, and a SW450 for $180)
Also, I am slightly confused by the 2 subs I have currently because it seems the lowerend/cheaper sub (the sub12) has deeper bass output then the RW12d does - does that seem right or do i have some other factors at play here? I'm basically looking for what will integrate the best and get me the most impact with my current system.
Thanks for any help and ideas, I greatly appreciate it!