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 GT-12BP 12" Bandpass Car Subwoofer Box + Audiotek 1800W Car Audio Amplifier | eBay
JBL Stage 1200S Sealed enclosure with one 12" subwoofer at Crutchfield