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
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JBL GT-BassPro12 | 12" Loaded/Powered Subwoofer System
Amazon.com: JBL GT-BassPro12 12-Inch (300mm) Car Audio Powered Subwoofer System, black : Electronics
I Thought It Would be Better? JBL BASSPRO 12 Powered Car Audio Subwoofer - YouTube
JBL BassPro 12 Ported powered subwoofer with 12" sub and 150-watt amp at Crutchfield
JBL BassPro 12 | 12" (300mm) Car Audio Powered Subwoofer System with Slipstream Port Technology