Amazon.com: 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 : Electronics
Denon HEOS HomeCinema review: Multiroom features and good sound, but tough to use - CNET
Best Buy: Denon HEOS HomeCinema Soundbar with 5.25" Wireless Subwoofer Black HEOS HomeCinema
Denon AVR-X6700H (140W X 11) 11.2-Ch. with HEOS and Dolby Atmos 8K Ultra HD HDR Compatible AV Home Theater Receiver with Alexa Black AVR-X6700H - Best Buy
Denon HEOS HomeCinema Soundbar & Subwoofer Reviews and Deals
DENON HEOS Home Cinema HS2 (2nd Gen) Soundbar & Subwoofer HDMI Wireless Bluetooth | eBay