Polk Audio db1222 Ported enclosure with two 12" db Series subwoofers at Crutchfield
Dayton Audio HTS545HE-4 Kraken 21" High Excursion Subwoofer with 5" Voice Coil 4 Ohm
Amazon.com: H YANKA 12 Inch Subwoofer - 12 Inch Paper Cone Subwoofer Car Audio, Black Steel Basket, Dual Voice Coil 4 Ohm Impedance 12 subwoofer, 1600W MAX Power 12 inch Competition Subwoofer : Electronics
12" Custom Hand Built Subwoofer 5000rms (Team 12) - EM Audio Subwoofers
EVL-10 | 10" 2,000 Watt Max Power Car Subwoofer - Skar Audio
Polk Audio HTS 12 Ported Subwoofer Review | Audioholics
Alphasonik Venum 800 Series 12" Car Audio Subwoofer | Alphasonik
Nemesis Audio NA-12Mv.3 2400W Max 3-in 4-Layer Voice Coil Car Stereo Subwoofer - Walmart.com
HTS 12 Subwoofer - 12" 400W Woofer | Polk Audio
Amazon.com: Planet Audio AC10D Anarchy Series 10 Inch Car Subwoofer - 1500 Watts Max, Dual 4 Ohm Voice Coil, Sold Individually, for Truck, Boxes, Enclosures, Use with Amplifier : Electronics
Discontinued Obsolete SKU | MTX Audio - Serious About Sound®
BOSS Audio Systems P156DVC Phantom Series 15 Inch Car Audio Subwoofer – 2500 Watts Max, Dual 4 Ohm Voice Coil, Sold Individually, For Truck Boxes and Enclosures, Hook Up To Amplifier
Sundown Audio Ev4 12" inch DVC Dual 2 Ohm (E Series) Car Subwoofer 500 Watts RMS
Sundown Audio SAv3 8" inch DVC Dual 4 Ohm (SA Series) Car Subwoofer 500 Watts RMS