Back Box Preparation - Martin Logan Statement 40XW Manuel D'installation

STEP 2: BACK BOX PREPARATION
2a Carefully remove the back box from its packaging.
Confirm the proper orientation of the back box using the
diagram on the positioning board:
LC UP = LEFT CHANNEL UP
RC UP = RIGHT CHANNEL UP
2b With the correct orientation pointing upwards, seat the
remaining bracket on the top of the back box by guid-
ing the locating pins on the back box into the holes in
the top bracket. Top bracket should be oriented as
depicted in the figure
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