Box Building Notes
Use 3/4" (1.9cm) or thicker MDF (medium
density fiberboard) or birch plywood
and seal the joints with silicone. Use the
"template" inside your L7X subwoofer's
shipping carton to mark the mounting hole,
then cut directly on the line. These designs
need internal bracing. Add triangular bracing
between each of the larger unsupported
panels.
For vented enclosures the displacement
of the port must be calculated and added
to the internal volume of the final design.
Use the outer dimensions of the port and
multiply "X x Y x Z", convert to cubic feet.
Due to the necessary length of these ports,
you may want to fold the port along the
bottom and back walls. It will be impractical
to use round ports for these designs.
Do not install a port opening against a solid
surface, such as an internal brace, back-
panel or trunk wall, seat or interior panel of
your vehicle. The port opening must remain
unobstructed. Use the smallest dimension
of the rectangular port as the minimum
amount of space between the port opening
and any solid surface to ensure unrestricted
airflow.
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