If it is the sub that came with the Heos Home Cinema soundbar/sub combo, it will ONLY work with the sound bar it came with. The DSW-1H (AKA Heos Sub) is designed to work with the 716 and 550 sound bars as well as the Heos amp and Link.

As far as the issues that Brad was having with Heos, if you make sure at install that all products are on the same firmware version you will be good to go. We sell Heos all the time with no issues. Just need to make sure it is installed and configured properly and it is VERY solid. As far as Sonos we do not recommend it at all. We only sell it if the customer asks for it or it’s already in the house. Otherwise it’s Heos all the way. It just works and the integration is top notch.