JBL Stadium 52F Stadium Series 5-1/4" 2-way car speakers - Breakers Stereo and Performance
JBL Grand Touring Series GTO1204D 12" subwoofer with dual 4-ohm voice coils at Crutchfield
JBL JBLSUBSD102SSIAM 450W Stadium Series 10" High-Performance Car Subwoofer | eBay
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