Pioneer TS-SW3001S2 slim 12 inch with custom enclosure made for best sound. This is a 800W (400W RMS) sub woofer running at 2ohms.
For the asking price I will have matching Pioneer mono 800W amp and some wiring included.
I have also Pioneer head unit, 4ch amp (800w) and 6x9 pair speakers with all wiring required.
Box size is 39.5" x 5.5" x 14"