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Amazon.com: Massive Audio HIPPOXL64 – 6 Inch Car Audio Subwoofer, High Performance Subwoofer for Cars, Trucks, Jeeps - 6" Subwoofer 300 Watt RMS, 600w MAX Dual 4 Ohm, 2 Inch Voice Coil. Sold Individually : Electronics
Amazon.com: DS18 ZXI6.4D 6.5" High Excursion Car Audio Subwoofer 600W Watts Dual Voice Coil 4-Ohm 4 Magnets (1 Speaker) : Video Games
Amazon.com: Cerwin Vega XED Series 12" Dual Subwoofer - 600W RMS, 2 Ohm Loaded, High-Efficiency Class D, Vented MDF Enclosure, Proprietary Vega Bass Boost, Remote Bass Knob, Perfect for Car Audio Systems
American Bass 6.5" High Powered Subwoofer 600W Max Power DVC Dual 4 Ohm VFL-65D4 : Electronics - Amazon.com
Amazon.com: Audiosavings Bundle: Alpine RS-W12D4 12" 600 Watt RMS Shallow Car Audio Subwoofer Bundle with Rockville dB13 3000 Watt Peak/750w RMS Car Amplifier + Rockville RWK41 4 Gauge Car Amp Wiring Kit(3
Amazon.com: Bass Rockers 12" 1200W/ 600W RMS Dual 4 Ohm Car Audio Stereo Sub Subwoofer for Amplifiers Amps : Electronics
Amazon.com: BLAUPUNKT 10" Single Voice Coil Subwoofer with 600W Power (GBW101) 1-PC Only, Black : Electronics
Amazon.com: Skar Audio VD-8 D4 8" 600W Max Power Dual 4 Ohm Shallow Mount Car Subwoofer : Electronics
Amazon.com: MTX 3512-04S 12" 600 Watt Shallow Mount Car Subwoofer Slim Sub + Speaker : Electronics
Amazon.com: CT Sounds Hydro 12 Inch Car Subwoofer 600w RMS Dual 4 Ohm : Electronics
Amazon.com: Pyle 8-Inch Low-Profile Amplified Subwoofer System - 600 Watt Compact Enclosed Active Underseat Car Audio Subwoofer with Built in Amp, Powered Car Subwoofer w/Low & High Level Inputs PLBX8A,Black : Electronics
Amazon.com: Massive Audio SUMMOXL104-10 Inch Car Audio Subwoofer, High Performance Subwoofer for Cars, Trucks, Jeeps - 10" Subwoofer 1500 Watt RMS, 3000w MAX Dual 4 Ohm, 3 Inch Voice Coil. Sold Individually : Electronics