Thanks Arny, now for a little good news...
Well, as many of you could have predicted, it worked!!!
I decided to throw a 2nd sub into the mix and well, what do you know? It helped
I disconnected two of my 18's, wired the outer two to one channel on my amp and hooked up my table tuba from upstairs to the other channel on the amp, set my gains so that both "subs" separately put out the same spl and voila! Out came more even response across both rows!!
Again, most of you are like, yeah, uhh, Duhh!
But, I had to see for myself and see what it could actually do. So, what does this mean? It means that I'm wiring in one or two subs in the back of the room!!! Haha, some light finally peeped it's way through the crack
Here are few graphs to show what happened...Front Center no TT...Front Center w/TT...Overlayed...Rear Center no TT...Rear Center w/TT...Overlayed...
Now, I still have some funkiness going on above 80hz, any ideas?
I did try a few different crossovers, 60hz/80hz, 80hz80hz, 100hz/100hz, 120hz/120hz. Out of all the above, 120hz/120hz worked best, is this odd?