This brings about a good question. How many subs to have on each channel, and how many channels to have.
It's slowly coming around to common knowledge that the concept of more subwoofers (non-co-located) is the key to victory for smooth and even frequency response vice more capable subwoofers in 1-2 locations.
I have a "wall" of 12's behind me for the nearfield effect but I treat them basically as one speaker, which if it isn't right, it isn't that far off from right since they're all in a relatively small area.
Phase 2 plans:
Channel 1: Main, Stereo Left
Channel 2: Main, Stereo Right
Channel 3: Subwoofer, Front Left Outside Main Speaker
Channel 4: Subwoofer, Front Left Inside Main Speaker
Channel 5: Subwoofer, Front Right Inside Main Speaker
Channel 6: Subwoofer, Front Right Outside Main Speaker
Channel 7: Subwoofer, Nearfield array
Channel 8: (optional, split nearfield into L&R, not sure if worth the effort)
Would use multi-sub optimizer on channels 3 through 6 to set distance/delay and eq them individually whole she-bang, then eq the nearfields (different target) for the desired tactile response.
Best I can tell, it makes sense to use about 4 JBL's per channel on the non-nearfields. This ends up being 16 JBL's across the front, and 4 bass channels, which is simply four 4 ohm loads. I like using crown, so two 2502's could be used in stereo just fine (~775 watts per 4 JBL's) or I could continue to be ridiculous and use 4 1502's (~1500 watts bridged per 4 JBL's).
The nearfields use quite a bit less power, and I do like their level to be a little lower as compared to the front, as I don't like hearing bass come from behind me -it has to blend with the fronts well for me to be happy. I was figuring I'd stick with 12 back there since I have them already but I could probably reduce it to 8 (
) or increase it to 16 (
) to make the load easier. Not sure it really matters.
Regardless, roughly speaking, this is the 28 JBL plan. This will take me a while, I have to do this in increments. I can start on the 16 up front pretty soon, but will take a while to get the processor I want (and sell off the ultimax's).
I did consider making some dual-opposed 8 JBL towers, but ultimately I believe spreading the bass around to 5-6 locations and eq'ing them like that will give me better results than the same drivers in less locations.
Any particular thoughts on this approach?