Source 12" Vented Box Bandpass Subwoofer Box Woofer Car Audio Box on m.alibaba.com
Amazon.com: Pyle 12" Dual Series Vented Subwoofer Enclosure for Car Audio - High Powered Sub Woofer Speaker with a 12 Inch Silver Paper Cone and Built-in Illuminating LED Lights - 2x600 Watt
Amazon.com: Pyramid 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 - BNPS122,Black :
Customer Reviews: Sound Ordnance™ B-24 Bandpass enclosure with two 12" subwoofers at Crutchfield
CS1214 | 30 cm (12 inch) subwoofer, with double magnet suitable for enclosed, bass reflex and bandpass boxes
Amazon.com: Pyramid 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 - BNPS122,Black :
Amazon.com: Pyle Single 12" Inch Vented Subwoofer Enclosure - 600 Watt Peak Power Car Audio Sub Woofer Speaker with Built-in Multi-Color LED Illuminating Ring Light & Remote Control : Everything Else
Amazon.com: AUDIOTEK AT-510FB Dual 10" 1600 Watt Max Power Band Pass Vented Sealed Vehicle Subwoofer Box Loaded with 10 Inch Car Audio Dual 4 Ohm Sub Enclosure : Electronics