Amazon.com: Vogel's SOUND 3550 soundbar mount | Also fits Bose Soundbar 500/700 | Sonos Arc/Beam/Playbar | Samsung | Sony | LG and JBL | mount for VESA 100 to 600 | Max. 14.3 lbs (6,5 kg) : Electronics
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Bose Smart Soundbar 900 review: Great features, great performance, high price - CNET
Bose takes on the Sonos Arc with its first Dolby Atmos soundbar - The Verge
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Side by Side: Sonos Playbar and Bose Soundbar ST300SB - YouTube