BOSS Audio Systems AR120DVC Armor Series 12 Inch Car Audio Subwoofer - 1600 Watts Max, Dual 4 Ohm Voice Coil, Sold Individually, For Truck, Boxes and Enclosures, Use With Amplifier - Walmart.com
Amazon.com: Demeras Subwoofer Box Terminal, Double Binding Posts Push Type Zinc Alloy Easy Connection 5Pcs Compact 2 Way Speaker Box OD 75mm ID 48mm for Home Hotel Hall : 電子
Can I Swap the Factory Subwoofer in My Car for Better Performance?
dual opposing subwoofers vs dual push pull design, thoughts? - Techtalk Speaker Building, Audio, Video Discussion Forum