I guess I should ask what the benefits/drawbacks would be of any of these particular subwoofer setups. Maybe a picture would help.
All the blue is just a rough idea where a bedroom, bathroom, and kitchenette will go. It's all completely unfinished at the moment. All the extra cubic footage will come from the theater space now being open to most of the rest of the basement whereas before it would have been tucked into the bottom right corner (not an ideal space itself).
So, is it best to have all the woofage on the screen wall or maybe put two of the four on the side walls?
If the answer is up front, four individual subs or two dual-opposed?
If dual-opposed, would wiring D2s up in 2 ohm be that much easier/better/cheaper than D4s in 4 ohm? I'm guessing that if I get two more D4s and more power (I haven't bought any amps yet) to run them in 4 ohm it might be cheaper in the long run and wouldn't sound any different. Correct me if I'm wrong, but an EP4000 should run those just fine, right?
I think I'm talking myself into more D4s...
Scott, how many D4s do you have already? I know you've been all over the SI HT 18 main thread, but I forget what you built.