JL Audio 10W7 - $400 (Mosinee)
If you're looking at this post then I don't need to sell you on the quality of JL Audio. For sale is my JL Audio 10W7 in a custom ported box. This sub was paired with my JL Audio 500/1 which is also for sale in a separate post. The unit is in full working order and has never let me down. I now drive a truck and don't have the desire to set up a full system at this time nor would this bad boy fit.