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The Boston Horizon bookshelf models are designed to easily mount on the wall using the keyhole slot(s) on the back of the
speaker. When mounting the speakers to the wall, use the supplied rubber bumpers. You must remove the attached foot to
wall-mount your speakers. Remove the thumbscrew from the back of the foot. It is slotted for easy removal with a screwdriver
or a coin.
The keyhole mounting option is similar to hanging a picture frame on a wall. Install a screw into the sheetrock, making sure
to go into a stud, and hang the speaker onto the screw head. If a stud is not available a sheetrock anchor should be used to
support the weight of the speaker.
Use the lower screw hole
for vertical speaker position
Use the lower screw hole
for vertical speaker position
Rubber Bumper
Speaker tilts forward
when upper foot mounting
screw hole is used
Speaker tilts forward
when upper foot mounting
screw hole is used
Keyhole Mount
Rubber Bumper
NOTE: You are responsible for the correct selection and use of mounting hardware (available through hardware stores) that
will ensure the proper and safe wall-mounting of the speakers.
Speaker Connections
After your speakers are properly placed, you are ready to wire your system. First, turn o all system power. We recommend
18-gauge wire or thicker for runs up to 25 feet (8m), and 16-gauge wire or thicker for longer runs. Separate the rst few inches
of the wire conductors. Strip o
1
/2” (12mm) of insulation from the ends of each speaker wire to expose the two conductors
and tightly twist the wire strands. Please see the illustration below for guidance connecting the wires to your speakers. For
connection to your receiver, please refer to its owner’s manual.
Keyhole Mount
HS 450
HS 450
HPS Subwoofer
HS 50HS 50
HS 225
A typical 5.1 surround sound system
with an HPS subwoofer