Bose® UB-20 bracket (Black) Wall/ceiling bracket at Crutchfield
Amazon.com: Speaker Wall Mount for Bose UB-20 Series II Ceiling Mount Bracket Compatible with All Bose CineMate Lifestyle ST535 ST525 ST520 535III 525III Speakers Mounting Brackets (Not for Lifestyle 650), Pair :
BOSE UB-20 II - Sound Brothers Onlineshop
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Ub20 ub-20 Wandhalterung Halterung Bose Lautsprecher 5,1 Cube Serie 2 neue Sound weiß | eBay