Hi all. First, I'd like to thank you for reading this. I am fairly new to home theater, but very handy, and I have a good general knowledge of tools, and the way things work. I was into car audio about 5 years ago. I was sorting through some things in the basement, and found a slightly used Kicker Solobaric s12c woofer, in a .88 cu ft box. So, since I figure I have this woofer already, I may as well put it to use. I figure that this woofer has under 50 hrs of use, I got it shortly before I sold the car it was in, and I never installed the stuff in my new car after that. The box is way too small to have very good low end grunt though, so I think I'll replace this. What type of box should I pair with this? after some research in this forum (namely the "car sub for HT use thread), I stumbled upon the WinISD program, and filled in some #s. Now, as far as I know (new to HT, used to be into car audio) the lower the sub is tuned for, the better. If I am off please correct me. I will be using this sub 70% movies, 30% music (jazz, rock mostly). My first question is whether this project is even worth undertaking. If the sub won't sound good, then I'd rather spend my time elsewhere. The sub itself has the following specs: Kicker Solo-baric S12C 4-Ohm Qts .32 Vas 212.3 L Fs 18.57 Hz Re 3.37 Ohm Le .61 Xmax 9 mm Z 4.0 Ohm Qms 9.34 Qes .34 SPL 88.28 dB Pe 600 W BL 12.24 Dia 12.01" 79.05 in^2 In the WinISD program, I tuned it for 16 Hz, and used a cubic box. My second question is whether I'd be better off going the cylindrical approach? Which is more size-efficient, and sounds better? Either way, I need guidance as to how big a box to pair this with, and any other things I need to look out for in building this thing. Thanks for all input.