Hey guys, I've got all the parts together for what I think will make an excellent (pair of) sub(s), now I just need a cabinet design. Goal: pair of subs for 2 channel music, I've got a seperate HT, I don't listen to organ music, so extension to and beyond 20 hz is not needed, and I would like to maximize the flat extension to 30 hz and get the highest SQ possible. I am thinking of two sealed enclosures, tall and narrow for use as speaker stands ( I am aware of the issues of dual non co-located subs) the other option is something that was suggested to me before, a 4 sqft. sealed enclosure with the drivers mounted opposite-firing ( one into the cab, one out). I liked that design but I figured I would see what everyone else thought before I went with something. I'll post a picture to explain exactly what I am talking about. The parts: 2 Eclipse 12" 88120DVC drivers Fs:29Hz Qts:0.34 DCR:3.0 /coil Vas:2.68cuft Xmax: (one way) 1.17" I understand that xmax value may be overstated, so if someone knows the real world value let me know. Citation 5.1 4 channel amp, capable of 4 x 175 into 4 ohms (one channel/coil) or 2x300 into 8 bridged (one channel for each sub) signal will likely come from a paradigm x-30 crossover that has yet to be purchased I have modeled a few enclosures in winISD, but it's difficult to determine the optimal enclosure volume, and as fun as some of you may insist it is, I would rather not build 3 boxes before I get the sound I want. So that's your mission should you choose to accept it! If a few of you could plug those t/s' into your respective modeling programs and suggest a few alignments I would really appreciate it. Thanks!