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AC Adapter fit JBL Duet II III Speaker / ON STAGE II / Control 2P JBL C2PS C2PM | eBay
US 18V Power Adaptor for the JBL Harman Duet Speaker by myVolts
ABLEGRID AC-AC Adapter For Harmon Kardon JBL Duet Speakers 700-0034-001 A4181511OT Power Supply Cord Cable Wall Home Charger Mains PSU - Newegg.com