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 Stage 1200S Sealed enclosure with one 12" subwoofer at Crutchfield
JBL GT-12BP GT Series 12 Inch Loaded Bandpass Subwoofer Enclosure - Open Box - Creative Audio
JBL S2-1024SS Series II 10 Inch Subwoofer with SSi Selectable Impedance - 2 or 4 Ohm - Creative Audio
JBL CS1200BSI - Car Subwoofer (Box Enclosure Subwoofer)
JBL GT-BassPro12 Ported powered subwoofer with 12" sub and 150-watt amp at Crutchfield