Amazon.com: JBL SUBBP12AM - 450 Watts (150W RMS) 12” Amplified 12 in. Ported Subwoofer with Sub Level Control and Distortion Free Bass with Gravity Magnet Phone Holder Bundle : Electronics
JBL BassPro 12 12" 450W Powered Car Subwoofer System with Slipstream Port Tech 50036368308 | eBay
JBL Stadium 1024 - 10” Subwoofer w/SSI™ (Selectable Smart Impedance) switch from 2 to 4 ohm
Amazon.com: JBL SUBBP12AM - 450 Watts (150W RMS) 12” Amplified 12 in. Ported Subwoofer with Sub Level Control and Distortion Free Bass with Gravity Magnet Phone Holder Bundle : Electronics