I saw this on the Samsung Australian Government website and confirmed on education store.
Make your Soundbar Sound+ even deeper. The subwoofer goes as low as 27 Hz, and is perfectly engineered to work in tandem with Sound+ Soundbars to add more depth.
Speaker Channels 0.1 Ch
Frequency Response Range 27-120 Hz
Subwoofer Power 200 Watts
Subwoofer Size 10 inch
Total Power 200 Watts
Compatible with Samsung Soundbars: HW-MS550; HW-MS55C; HW-MS570; HW-MS57C; HW-MS560; HW-MS650; HW-MS651; HW-MS6500; HW-MS6501; HW-MS660; HW-MS661; HW-MS6510; HW-MS6511; HW-MS750; HW-MS751; HW-MS760; HW-MS761