a sub like that i doubt your going to find on this forum i dont even know of anyone locally with a btl and if you want a btl you better have the power to supply to it 2000 rms + and the electrical to back it i.e. high out put alt 200 + and a couple of batts but if your serious good luck you can get one on Ficaraudio.com or check out Stevemeadedesigns.com to get one used