JBL Club 1224 Club Series 12" component subwoofer with switchable 2- or 4-ohm impedance at Crutchfield
JBL Stage 1220B 1000W Dual 12" Subwoofer Enclosure | Best Jeep Wrangler JK 4 Door Subwoofer Box
JBL GX1200 GX Series 12" inch Single-voice-coil Car Subwoofer for sale online | eBay
JBL-BASSPRO12 Car Subwoofer-GTBASSPRO2 | Audio Express | Western United States
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 SUB BassPRO12 450 Watts Amplified 12" Ported Subwoofer Sub Box Built In Amp 50036368308 | eBay