SA – 10 D2 – Sundown Audio 10 Dual 2 – Ohm SA Series Subwoofer by Sundown Audio : Electronics - Amazon.co.jp
Amazon.com: Cadence 12 Inch Car Subwoofer, High Performance 1600 Watts Dual 2 Ohm 2.5 Inch Black Aluminum 4 Layer Voice Coil, Beast Series Car Audio Woofer BT12D2, Single : Electronics
Amazon.com: CT Sounds STRATO-10-D2 2500 Watts Max 10 Inch Car Subwoofer Dual 2 Ohm : Everything Else