Bose 131 User Manual download pdf (Page 9)

AM188201_02_V.pdf October 30, 2001 9

Drill the marked holes using a

⁄

inch

(.32 cm) bit. Use a center punch to make

a slight indentation for your drill bit. This

will keep the drill bit from “walking” away

from the mark you have made.

Installing Your Speakers From The Rear Of The Bulkhead

Mark six screw holes. Use the smallest

hole pattern that fits.

You need to open one of the five marked

drain holes because water can enter your

131

marine speaker through the ports on

the front of the enclosure.

Holding the enclosure in the mounting

position you chose in Step 7, find the drain

hole that will be at the lowest point when

the speaker is mounted and break through

the surface using a center punch, awl, or

⁄

inch (.32 cm) drill bit.

Remove the enclosure from behind the

bulkhead.

A 9

A 10

A 11

A 12

CAUTION:

Be sure the enclosure is not in

place behind the bulkhead while drilling.

CAUTION:

Acoustic performance is reduced

if the hole is larger than

⁄

inch (.32 cm) in

diameter.

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Bose 131 User Manual Page 9