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One Audio IB2 Series – Infinite Baffle Subwoofer – BladeICE
DS18 SLC10S Select Series 10-Inch Single Voice Coil 440 Watts Max Subwoofer, Set of 1 : Amazon.co.uk: Electronics & Photo
NEW 5.25" SubWoofer Bass Speaker.4ohm Home Car Audio Woofer.5-1/4".6" frame | eBay
8" (inch) Under Seat Subwoofer box (MDF) For Volkswagen Transporter T5/ T5.1 - InCarTec
Rockford Fosgate T1S1-10 10" Slim Power T1 Single 1-Ohm Subwoofer
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6.5 Inches Paper Subwoofer Drum Speaker Cone, Rubber Paper Speaker Cone Subwoofer Cones Drum Paper Rubber Surround, 1 Inch Inner Diameter, Black: Amazon.co.uk: Electronics & Photo
Rockford Fosgate T3S1-19 - 19" Power T3 Single 1-Ohm Superwoofer