12" inch New Subwoofer High BASS Upgrade Woofer Speaker for home stereo 8 ohm | eBay
One unit (not pair) |12 Inch Woofer for Bass Compensation of Open Baffle or Cabinet | W-12 - Lii Song (Lii Audio), unique speaker, amplfier, quality and cost-saving parts for HiFi DIY
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