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Amazon.com: Customer reviews: JBL L8400P 600-watt High Performance 12-Inch Powered Subwoofer with Digital Amplifier (Black)
JBL L8400PCH Studio L Series 12" 600-Watts Powered Subwoofer Cherry LOCAL PICKUP 50036909792 | eBay
JBL L8400P Studio L Series 12" 600-Watts Powered L8400PCH-H B&H