A:AnswerHere is the actual Samsung website and under specs of the subwoofer it shows the models that it is compatible with. https://www.samsung.com/us/televisions-home-theater/television-home-theater-accessories/home-theater/subwoofer-for-sound-plus-soundbars-swa-w700-za/
A:AnswerHello StevieB,
No, the SWA-W700 is only compatible with the following soundbar models HW-MS550, HW-MS650, HW-MS6500, HW-MS750, HW-NW700. ^Cristian
A:AnswerThe sub pairs to the dongle. Make sure your sub has a usb type c input for the dongle. I have 3 sound bars and have two of these subs connected to 2 Soundbars (ms750 and ms650) both have rear speakers connected via dongle as well. One dongle connection for both rear speakers and sub. My bedroom soundbar (m550) does not have a usb type c input so I cannot connect the dongle. I think those subs are for the “sound plus” model soundbars.