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Ground Zero Iridium 30cm / 12" Subwoofer - 2 x 2 ohm voicecoil - 1000 WRMS, Black : Amazon.co.uk: Electronics & Photo
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Ground Zero Iridium GZIW-12SPL 12" 30cm 1000 Watt Dual Voice Coil Car Subwoofer 4037072006087 | eBay
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GROUND ZERO GZ-GZRW X SPL-D 2 12 Inch 30 Cm Double Voice Coil Subwoofer Maximum Input 1500 W | Sub Woofer Speakers | Croooober
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