I think I have posted this before.. But I don't remember, after offering my subs and amp well hell my entire system to my brother for his bday he said no Anyway, here are the specs right now, 2 SA12s with Sundown SPL Coils.. FS is 44Hz, they are in an extremely abused box thats tuned to 34Hz and a little to small. If you want to see the woofers and the box, I have some vids on youtube of it, nothing to be proud of. First off I want to say I am open to any suggestions at all, even if your flaming me for destroying my SAs lol thats fine with me. First thing on my mind is getting these re-coned by SPL Audio to a heavier copper coil, that should bring the FS down to the mid 30s maybe 35Hz, as for the coils I will be going D2 on the pair, and wiring the SAZ1500 at .5ohm. I plan to pick up some dual inputs for the AMP so it can get more power because I am using CCA and not OFC. The two batteries keep up at 1ohm but I dont think they will at .5 so I also plan on selling them and looking for something from XS Power or Kinetic (probably used on the forum) shooting for a single D34 From XS if I can find one. Then comes the box, planning to head to DC Creations and get something proper made from birch, not sure on tuning frequency yet, considering 38Hz as this is a music only build.. If you have any ideas, let me know Thanks!!!