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Amazon.com: Skar Audio EVL-8 D4 8" 1200 Watt Max Power Dual 4 Ohm Car Subwoofer : Electronics
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Amazon.com: Kicker 44CWCD104 Dual 4-Ohm Car Subwoofer Sub Bundle with dB11 RMS Car Amp and Remote, Single Box Kit: Wire,Screws,Spades, RSV10 Single Vented Subwoofer Box and RWK81 Amp Wire Kit with RCA (
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Amazon.com: Skar Audio SDR-10 D4 10" 1200 Watt Max Power Dual 4 Ohm Car Subwoofer : 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: 2) Rockville SBG1124 12" 600 Watt Passive 4-Ohm Pro DJ Subwoofers,MDF/Pole Mount : Musical Instruments
Amazon.com: WEIJ 10W 4 Ohm External Magnet Speaker Loudspeaker 75mm x 30mm 2Pcs : Electronics
Amazon.com: uxcell 10W 4 Ohm 3 Inch 78x78x39mm Anti-Magnetic Speaker Tweeter Speakers 2pcs : Electronics
Amazon.com: Rockford Fosgate R2SD4-10 10 inch 800 Watt 4 Ohm Subwoofers (2 Pack) and Q Power QTW10 10 inch Single Sealed Car Audio Subwoofer Box Enclosure (2 Pack) : Electronics
Amazon.com: BOSS Audio AVA-6200 80 Watt 3-Way 4-Ohm Car Audio Box Speakers AVA6200 (4 Pack) : Electronics
Amazon.com: Rockville SBG1184 18" 1000 Watt Passive 4-Ohm Pro DJ Subwoofer, MDF/Pole Mount : Musical Instruments
Amazon.com: ORION Cobalt CO525C 5.25” 4 OHM 2-Way System 50 Watts RM Coaxials Series CO Speakers Car Audio Stereo Set of 2 Speakers : Electronics
Amazon.com: 12" 1200W Car Audio Subwoofer - 2 Way Neon Bandpass Speaker System w/ Blue Lights, DC 12V Input/4 Ohm/32Hz-1KHz Freq.Res w/ Plexi-Glass Front Window & Silver Polypropylene Cone - Pyramid BNPS122 :
Amazon.com: KICKER 44CWCS104 CompC 10" 500W Single 4-Ohm Car Subwoofer Bundle with Rockville RSV10 Single Vented Subwoofer Enclosure Box and Single Sub Box Enclosure Installation Kit : Electronics
Amazon.com: KICKER Comp 12" (30cm) Subwoofer in Down Firing Encl, 4-Ohm; RoHS Compliant : Electronics
Amazon.com: Harmony Audio HA-F104 Car Stereo Flatline Series 10" Sub 700W Single 4 Ohm Subwoofer : Electronics
