Amazon.com: Pyle 6.5 Inch Mid Bass Woofer Sound Speaker System - Pro Loud Range Audio 300 Watt Peak Power w/ 4 Ohm Impedance and 60-20KHz Frequency Response for Car Component Stereo PLG64,Yellow : Electronics
Amazon.com: Seismic Audio - SA-SBL124-12 Inch Dual 4 Ohm Slim Mount Car Audio Subwoofer 500 Watts Max Power : Everything Else
Amazon.com: Ground Zero Iridium 16,5 cm / 6.5" Subwoofer - 4 Ohm - 100 WRMS : Electronics
Amazon.com: CT Sounds Meso-6.5-D4 6.5 Inch Car Subwoofer Dual 4 Ohm, 800 Watts Max
Amazon.com: Lanzar 6.5” Car Subwoofer Speaker - Black Non-Pressed Paper Cone, Aluminum Voice Coil, 4 Ohm Impedance, 600 Watt Power and Foam Edge Suspension for Vehicle Audio Stereo Sound System - MAXP64 : Electronics
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
Amazon.com: Sony XS-GTF1626 GTF Series 6-1/2 inch (16cm) Full Range 2-Way 190 Watts Coaxi... : Electronics
Amazon.com: Hertz Ev165L 5. 165 Mm Midrange Deep 16 cm Woofer : Electronics
Amazon.com: Ground Zero Mid Woofer Pair 16 cm Gzck 165Spl for Car 165 Mm Diameter High Efficiency Middle Bass for Excellent Sound : Electronics
Amazon.com: BOSS Audio Systems BAB8 Amplified Car Subwoofer - 800 Watts Max Power, Low Profile, 8 Inch Subwoofer, Remote Subwoofer Control, Great for Vehicles That Need Bass But Have Limited Space : Electronics