Denon Home Subwoofer with HEOS Built-In, Deep, Powerful Bass, 8" Bass-Reflex Woofer, Pair with Denon Home Sound Bar 550, and Denon Home 150/250/350 Speakers or HEOS Speakers, Easy Installation
JBL (ESC550) Simply Cinema BASS 550 Subwoofer and Cable Only | eBay
SUB 550P | 500W, 10-inch powered subwoofer
JBL ESC550 Home Cinema System Manual | HiFi Engine
JBL Home Theater BASS 550 AND ESL 550 Black | eBay
JBL (ESC550) Simply Cinema BASS 550 Subwoofer and Cable Only | eBay
Denon Home Subwoofer with HEOS Built-In, Deep, Powerful Bass, 8" Bass-Reflex Woofer, Pair with Denon Home Sound Bar 550, and Denon Home 150/250/350 Speakers or HEOS Speakers, Easy Installation