Amazon.com: Pyle 12' Car Audio Speaker Subwoofer - 1600 Watt High Power Bass Surround Sound Stereo Subwoofer Speaker System - Non Press Paper Cone, 90 dB, 40 Ohm, 60 oz Magnet, 2
KLH Stratton 500 Watt 12 inch Subwoofer | KLH Subwoofers
Alphasonik NSW412 Neuron 400 Series 12” 1500 Watts Max / 500 Watts RMS | Alphasonik
JBL BassPro 12 Ported powered subwoofer with 12" sub and 150-watt amp at Crutchfield