Yamaha DHR Series Owner's Manual page 11

Setup Examples
Fixed installations—using the DHR10
DHR10 can be neatly installed on a ceiling or a wall, either horizontally or vertically, with the separately sold Yamaha UB-
DXRDHR10 U-bracket. For instructions on installing the U-bracket, refer to the corresponding manual for the UB-DXRDHR10.
NOTE
The UB-DXRDHR10 can be used together with separately sold optional brackets, such as the Yamaha BBS251 Baton Bracket.
Also, the DHR10 features a rotatable horn (90 degrees). When shipped from the factory, the directivity of DHR10 in a vertical ori-
entation is the setting which makes the sound expand in a horizontal direction, and inhibits or narrows the sound in a vertical
direction. We recommend changing the directivity by rotating the horn when you want to install the DHR10 horizontally and
broaden the directivity.
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