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Kicker 44TCWC104 CompC 10" Truck Sub Box Enclosure 4 Ohm
Amazon.com: BOSS Audio Systems P126DVC Phantom 12-Inch 2300 Watts 4 Ohm Dual Copper Voice Coal Car Audio Stereo Subwoofer Speaker with Poly Injection Cone : Electronics
Amazon.com: (2) Kicker 44CWCS124 CompC 12" 600 Watt Single 4-Ohm Car Subwoofer Bundle with Dual Sub Box Enclosure Installation Kit and Rockville RD12 Dual MDF Sealed Subwoofer Enclosure (4 Items) : Electronics
Amazon.com: Rockville VS12K54 12" K5 1400w Car Subwoofer in Vented Sub Enclosure Box - 4 Ohm : Everything Else
Amazon.com: ALPHASONIK AS10DF 10 inch 1200 Watts 4-Ohm Down Fire Shallow Mount Flat Enclosed Sub woofer for Tight Spaces in Cars and Trucks, Slim Thin Loaded Subwoofer Air Tight Sealed Bass Enclosure :
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Amazon.com: Two Notes Torpedo Captor Reactive Loadbox DI and Attenuator - 4 Ohm : Musical Instruments
Amazon.com: KICKER 43VC124 Comp 12" Subwoofer in Vented Sub Box Enclosure, 4 -Ohm Bundle with Rockville RWK81 8 Gauge Amp Installation Kit and RXA-T1 Car Stereo Amp : Electronics
Amazon.com: BOSS Audio Systems CX122 1400 Watt Car Subwoofer, 12 Inch, Single 4 Ohm Voice Coil, 12 inch subwoofer Box Ready : Electronics
Amazon.com: BOSS Audio Systems MC900B Amplifier for ATV UTV Car Marine - 500 High Output, 4 Channel, 2/4 Ohm, Bluetooth Multi-Function Remote, RCA Out, Weatherproof, Use Amp with Stereo and Subwoofer, Crossover : Electronics
Amazon.com: Kenwood KFC-W3041 12" 4 Ohm 2000W Car Subwoofer (Single) with Gravity Magnet Phone Holder Bundle : Electronics
Amazon.com: AudioPipe TXX-BDC4-12 Dual 4 Ohm 12 inch 2,200 Watt Car Speaker Subwoofer (2 Pack) Bundle with QPower QBOMB12TB Dual 12 Inch Triangle Ported Car Audio Subwoofer Box Enclosure with Bedliner Spray : Electronics
Amazon.com: BOSS Audio Systems R1100M Riot Series Car Audio Subwoofer Amplifier - 1100 High Output, Monoblock, Class A/B, 2/4 Ohm Stable, Low/High Level Inputs, Low Pass Crossover, Mosfet Power Supply, Stereo :
Amazon.com: Fosi Audio BT20A Bluetooth 5.0 Stereo Audio 2 Channel Amplifier Receiver and Box X1 MM Phono Preamplifier : Electronics