JBL 150 Watt Active Powered Subwoofer - electronics - by owner - sale
JBL SCS160SI 7-Piece 150-Watt Powered Subwoofer Home Theater Speaker System | eBay
JBL Professional Control Contractor 60 Series 60PS/T - Subwoofer - for PA system - 150 Watt - 8" - black (grille color - powder coated steel) - Walmart.com