Legacy Harmony Center Owner's Manual page 10

Speaker Installation
2. Securely attach the two rubber lined wooden locks
to the inside face of the studs, using the two 2 ½"
long screws supplied. Use a bubble level to insure
that they are level with each other and square with
the wall. Refer to drawing for location of the blocks
relative to the opening. Use the supplied spacers to
adjust the separation between the blocks
3. Temporarily place cabinet in the wall, so that the
two recesses on its back rest on the rubber covered
hanger blocks protruding from the wall. Make sure
the cabinet hangs plumb and the small rubber
bumpers on the back of its rim are just touching the
face of the wall. Using an awl or other suitable
device mark the locations of the two cabinet
mounting holes on the face of the hanger blocks.
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