Amazon.com: Skar Audio EVL-15 D2 15" 2500 Watt Max Power Dual 2 Ohm Car Subwoofer : Electronics
Amazon.com: PYLE-PRO 15 Inch Car Midbass Woofer -800 Watt High Powered Car Audio Sound Component Speaker System w/High-Temperature Kapton Voice Coil, 30Hz-3kHz Frequency,90.2 dB, 8 Ohm, 70 oz Magnet PPA15 , BLACK :
Amazon.com: American Bass Speakers XR-15D4 15-inch Subwoofer Woofer 1500 Watt RMS & 3000 Watt Max Dual Voice Coil 4 Ohm Impedance Voice Coils 200 Oz Magnet : Electronics
Amazon.com: Peavey 15LOMAX 15" Lo Max Subwoofer : Electronics
2 Pack American Bass 15" Subwoofer 1200W RMS Power DVC 4 Ohm Elite 1544 Series : Electronics - Amazon.com
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