bandpass subwoofer boxes

QPower QBASS Dual 12 Inch Car Audio Subwoofer Enclosure Box, Charcoal (2 Pack)

SteelSeries Exclusive Booster Pack Assortment

Monoprice 12-inch Powered Subwoofer - Black, 150-watt (RMS)

QPower Dodge Ram Quad Cab '02-Newer Dual 12 Inch Subwoofer Box Sub Enclosure

Monoprice SSVC-4.1 Single Input 4-Channel Speaker Selector With Volume Control, Impedance Protection, Individual Zone On/Off Buttons

Supersonic SC-506 Bluetooth Portable Boombox 2 Display High-Stability Architecture for Multilayer Operational Deployment

QPower HD112VL Single 12 Inch SPL XL Heavy Duty Side Ported Subwoofer Box Enclosure with Durable Carpet Covering for Car Audio Systems

QPower QBGMCFF07208 8 Inch Dual Port Subwoofer Enclosure Box with Underseat Down Fire for GMC and Chevy Crew Cab 2007 to Current