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Amazon.com: (2) 8'' RI Audio Subwoofer 1000W Peak Power Dual 4 Ohm Energy Series Car Audio, Black : Electronics
Amazon.com: BELVA BPKG210v2 1000W Dual 10" Car Subwoofer with Ported Enclosure, Monoblock Amplifier, Wiring Kit and Remote Bass Knob : Electronics
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Amazon.com: Rockford Fosgate R2D2-12 12" 1000W 2-Ohm DVC Car Audio Power Subwoofers : Electronics
Amazon.com: Boss Chaos Exxtreme 10" 1000W Dual Voice Coil 4 Ohm Car Audio Subwoofer (2 Pack) : Electronics
Amazon.com: American Bass Xd1244 12 1000w Car Audio Subwoofer Sub 1000 Watt : Electronics
Amazon.com: American Bass 2 ES 1044 10" 1000w Shallow Slim Car Subwoofers 4-Ohm Subs ES1044 : Electronics
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Amazon.com: AUDIOTEK Pair of Car Vehicle Subwoofer Audio Speaker - 10 Inch Competition Grade Pressed Paper Cone, 4 Ohm Impedance, Advanced Air, 1000W Power for Stereo Sound System K710 (2 Subwoofers) PK10 : Electronics