Rockford Fosgate subwoofer, 10 inch, Series 1, S1-104 | eBay
Rockford Fosgate Power T1D412 12" dual 4-ohm voice coil component subwoofer and Rockford Fosgate T1500-1bdCP Power Series mono sub amplifier — 1,500 watts RMS x 1 at 2 ohms and a SOTS Lanyard
Rockford Fosgate T1S-1x10 Power Series 1-ohm truck-style 10" T1 sealed enclosure at Crutchfield