Originally Posted by obleo
Thanks for the feedback. Subs in the corners is a possibility, but would take a hit in the WAF. For about the same $$ I can do dual JTR 4000's up front or 4 SubM's in each of the corners. Would one really be that much of an improvement over the other? If not, I lean towards the simplicity and WAF of the JTR. But, if it would make a big improvement, I can do SubM's in the 4 corners.
It's different in every room, but yes, this difference can be huge, depending on the room.
If you have a closed rectangular room, the free REW room simulator can give a pretty accurate estimate for sub layouts and counts. The main concerns are minimizing nulls and maximizing output, since peaks can be EQed out. Make sure to turn on time alignment. This doesn't require a microphone to use the simulator. It's actually fun...try this right now!
The trouble with all the subs on one side of a closed room is that you usually end up with bad nulls. You want a sub on the opposite side to cancel out the nulls. There's a lot you can read on sub placement, but here are some to try in the simulator (in no particular order):
1) Nearfield can work great when the room can accommodate it. This is an exception, where the sub is close enough for the direct sound to overpower the reflections.
2) 2 subs on the center of the opposing walls (preferably opposite the room's longer axis).
3) 2 subs on opposite corners.
4) 4 subs in 4 corners.
5) 4 subs at 1/4 3/4 positions on opposite walls (preferably opposite the room's longer axis).
Paper on placing multiple subs: