Amazon.com: MB Quart DS1-204 Discus Shallow Mount Subwoofer (Black) – 8 Inch Subwoofer, 400 Watt, Car Audio, 2 Inch Voice Coils, UV Rubber Surround, Best in Sealed Enclosures : Electronics
Amazon.com: Infinity Reference REF1200S 12" Shallow Mount Subwoofer, Black : Electronics
Amazon.com: BELVA BPKG Series Car Subwoofer with Ported Enclosure, Monoblock Amplifier, Wiring Kit and Remote Bass Knob (1000W Dual 10") : Electronics
Amazon.com: Pioneer TS-A300D4 12 Inch 1500 Watts Max Power Dual 4-Ohm Voice Coil A Series Car Audio Stereo Subwoofer Loudspeakers / Free Alphasonik Earbuds : Electronics
Pioneer carrozzeria 20cm×13cm Powered Sub Woofer TS-WX130DA【Japan Domestic Genuine Products】
Amazon.com: DS18 EXL-X12.4D Subwoofer in Black - 12" Speaker, 2,500 Max Power, 1,250 RMS Power, Fiber Glass Dust Cap, Red Aluminum Frame, Dual Voice Coil 4+4 Ohm Impedance, Treated Rubber Edge (1