Amazon.com: Skar Audio SDR-10 D4 10" 1200 Watt Max Power Dual 4 Ohm Car Subwoofer : Electronics
Amazon.co.jp: PowerBass S84 S-Series 8-Inch Single 4 Ohm Subwoofer by PowerBass : 家電&カメラ
Amazon.com: Focal Performance Sub P 30 12" 4-ohm subwoofer : Electronics
Amazon.com: Harmony Audio HA-R104 Car Stereo Rhythm Series 10" Sub 500W Single 4 Ohm Subwoofer : Electronics
Amazon.com: Lanzar 12in Car Subwoofer Speaker - Black Non-Pressed Paper Cone, Stamped Steel Basket, Dual 4 Ohm Impedance, 1600 Watt Power and Foam Edge Suspension for Vehicle Audio Stereo Sound System -
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Amazon.com: Hifonics HFX12D4-PAIR 400-Watt 12-Inch HF Series Dual 4-OHM Subwoofer, Set of 2 : Electronics
Amazon.com: Pyle PLPW15D 15" 8000W Car Subwoofer Audio Power Subs Woofers DVC, 2 Pack with Black Steel Basket, Non Press Paper Cone and 4 Ohm Impedance : Electronics
Electronic Spices Bluetooth 4 inches Max Subwoofer Speaker 4 ohm 30 Watt HiFi Woofer Deep Bass, Multicolor : Amazon.in: Electronics
Amazon.com: NVX VCW124v3 (VCW124 Version 3) 2400 Watt Peak (1200W RMS) 12" VC-Series v3 Dual 4-Ohm Car Subwoofer… : Electronics
Amazon.com: Pyle Car Subwoofer Audio Speaker - 8in Non-Pressed Paper Cone, Black Plastic Basket, Dual Voice Coil 4 Ohm Impedance, 800 Watt Power and Foam Surround for Vehicle Stereo Sound System -
Amazon.co.jp: BOSS Audio Systems R1100M Riot Series Car Audio Subwoofer Amplifier - 1100W High Output One-Piece Cast A/B Grade Stable 2/4 Ohm Drive Low/High Level Input Low Pass Crossover MOSFET Power Circuit
Earthquake 10" Subwoofer, 4 Ohm Dual V. C. , Push On Terminals : Automotive - Amazon.co.jp