Okay, so upon working on tuning my system more, I discovered a phase issue I can't seem to figure how to resolve fully in my system.
My Cerwin-Vega S-2 EE speakers are currently configured to play down to 50Hz, I had them at 40Hz (Though I could go much lower as they are well capable, I just wanted to ease the load on them.). Setting all done through my DCX2496. Same unit supplies my LFE signal to my subwoofer setup. I haven't added the second dual opposed enclosure yet, but when I do it will be on top of the other one. (Not much placement options)
I've read around and saw that sealed enclosures are 180 degrees different than ported, and my Cerwin-Vega's have a wide slot port on the back. I had the phase on the DCX2496 set at 90 degrees because of previous testing, but as I found this information out I tried again today. So I tried 180...
50Hz test tone did improve, but 70hz was hurt quite a bit, more than I gained in the 50hz range... in fact, 70hz is strongest at 0 degree setting. I was using my DEQ2496 with my Dayton audio mic to read the SPL from my listening position, and with what tinkering I've done, the timings don't seem to help any. Unless I'm just not understanding those correctly. (I'm still learning.
So far I have it set at 135 degrees to try to balance between 90 and 180 degrees, because if I go below 90 (such as 0), I will have the 50hz range canceled out with the mains. Any ideas what I can do?
I should note... 70Hz isn't canceled out, in fact if I mute the subwoofer the SPL lowers. So it still gains but it could gain more if I could achieve perfect phasing.