Bose 131 User manual

The Bose®131TM Marine Speaker System

Owner’sGuide

October30,2001

AM188201_02_V.pdf

2 October 30, 2001 AM188201_02_V.pdf

Safety, Warranty, and Technical Information

Please read this owner’s guide

The Bose

131

marine speaker system is engineered to provide sound quality far beyond

other marine speaker systems. This guide helps you install and use your speaker system

properly. Please read the installation section completely before cutting any holes. It is

important to understand the reasons for choosing one mounting hole size over the other.

Warranty period

Bose 131 marine speakers are covered by a limited 3-year transferable warranty. Details of

the coverage are provided on the warranty card that came with your speakers. Please fill out

the information section on your card. Then detach the card, and mail it to Bose Corporation.

Technical information

Features

• Polymer fiber driver cone

• Dual-port polypropylene enclosure

• Syncom II

computer quality control

Speaker driver complement

• One 4

⁄

" (11.4 cm) full range environmental

driver per enclosure

Compatibility/Impedance

• Maximum continuous power per I.E.C.: 40W

• Compatible with receivers or amplifiers

10 - 80 watts per channel

• Impedance 4 - 8 ohms

Finish

• Grille: Arctic White

Size/Dimensions

• Weight, unpacked: 9 lb (4 kg)

• 12"L x 3

⁄

"D (30 cm x 8.9 cm)

• Cut out Diameter:

• 5

⁄

" (13.7 cm) with access to

rear of mounting surface

• 7

⁄

" (18 cm) without access to

rear of mounting surface

• Grille Diameter: 8" (21 cm)

• Mounting Depth: 3

⁄

" (8.9 cm)

• Mounting Wall Thickness:

.75" (1.9 cm maximum) rear

mounting

.50"(1.2 cm maximum) front

mounting

For your records…

Serial numbers are located on the label of each 131 marine speaker.

Serial numbers: _____________________ and _____________________________________

Dealer name: __________________________________________________________________

Dealer phone:_______________________ Purchase date: ___________________________

We suggest you keep your sales slip and warranty card together with this owner’s guide.

AM188201_02_V.pdf October 30, 2001 3

Contents/Records

Bose B.V.

Nijverheidstraat 8, 1135 GE Edam

The Netherlands

Anton Schalkamp

General Manager, Bose Europe

Manufacturer’s authorized EU representative

23 January 1997

Kind of equipment: Loudspeaker

Type designation: 131™ marine speaker system

in accordance with EMC Directive 89/336/EEC

andArticle 10(1) of the Directive,

is in compliance with the following norm(s) or document(s):

Technical regulations: EN50081-1, EN50082-1

Accredited by Bose Corporation

acknowledge our sole responsibility, that the product:

Bose®Corporation, The Mountain,

Framingham, MA 01701-9168 USA

We, the offerer:

DECLARATION OF CONFORMITY

Where to find…

Setting up

Unpack the carton ........................................................................................................4

Tools required ...............................................................................................................4

Select the locations for your speakers .........................................................................5

Installing Your Speakers

Test the speakers .........................................................................................................6

Mounting the speakers .................................................................................................6

Installation from the rear of the bulkhead .....................................................................7

Installation from the front of the bulkhead..................................................................11

Maintaining Your Speakers

Cleaning the speakers ................................................................................................16

Troubleshooting .......................................................................................................... 16

Bose®Corporation ....................................................................................inside back cover

4 October 30, 2001 AM188201_02_V.pdf

Tools required

You will need the following tools to complete this installation:

•Phillips-head screwdriver.

•An appropriate cutting tool for the surface to be cut. For installation in fiberglass or wood,

we recommend a sabre saw. Use a short blade, and have some extra blades available. A

hole saw may also be used. Large diameter hole saws are available and they allow you to

make circular cuts on a flat surface.

•Drill with the following bits:

- For drilling the screw holes a

⁄

inch (.24 cm) bit is preferred, but you could also use a

⁄

(.32 cm) inch bit.

- For drilling the starter hole, use a

⁄

inch (.8 cm) bit.

•Center punch or awl.

•Half-round file or rasp.

•Eye and ear protection; dust mask.

CAUTION:

Failure to follow these instructions voids all warranties on your speakers. If you

are unsure of your ability to complete this process, consult a professional installer. Please

read this owner’s guide completely before beginning installation.

Unpack the carton

Carefully unpack your speakers and save all packing materials for possible future use. Do not

attempt to use your speaker system if any part of it appears damaged. Notify Bose

Corpora-

tion or your authorized Bose dealer immediately. Check that your system contains the parts

identified in Figure 1. For shipping, the mounting flange is packed inside its speaker grille.

Separate these components before installation.

Notes:

Please remove the perforated drilling and cutting template from the inner carton

containing the grille and mounting flange. Also remove the perforated speaker cone shields

from the inner cartons containing the enclosures. You will need the template and shields

during installation.

Now is a good time to record each speaker serial number on page 2 of this guide and on

your warranty card.

Setting Up

Figure 1

Packaging Contents:

• Two 131 marine speaker

enclosures

• Two mounting flanges

• Two speaker grilles

• One Owner’s Guide

• One template for

positioning, cutting, and

drilling holes

• Two speaker cone shields

• Mounting hardware:

• 30 screws (6 extra)

• 10 wire nut connectors

(2 extra)

• Two 20 foot speaker

cables, 18-gauge

CAUTION:

The 131

marine speakers are not intended to be installed in automobiles.

AM188201_02_V.pdf October 30, 2001 5

Figure 2

Selecting the right locations

Mount from the rear if you

can insert the speaker enclo-

sure behind the bulkhead

mounting surface.

Mount from the front if you

cannot reach behind the

mounting surface. If you are

uncertain about the depth and

clearance behind your mount-

ing surface, consult your boat

manufacturer or dealer.

Setting Up

Select the locations for your speakers

In selecting locations for your speakers, understand that there are two possible mounting

options. It is easiest to mount the speakers from behind the mounting surface. However, if

you cannot reach behind the mounting surface, you may cut a larger hole that allows you to

insert the speaker enclosure from the front of the mounting surface. See Figure 2. With this in

mind, find a location that:

•Allows sufficient room to snap on the grille. Use the template to be sure there is

enough area around the holes you will cut in the bulkhead.

•Allows sufficient room for the speaker enclosure behind the bulkhead. During installation,

the enclosure requires 4

⁄

inches (11 cm) of mounting depth. However, once installed the

enclosure requires only 3

⁄

inches (9 cm) of mounting depth and 12 inches (31 cm) of

extension. The enclosure may be rotated in a complete circle, but attaches to the mounting

flange in only one position.

•Accommodates the speaker wire provided. Lay out lengths of wire that comfortably

reach from the receiver to each speaker. Be sure the wires are secure and protected

from being pinched, pulled, or damaged in any way.

•Is not close enough to adversely affect any compass.

Note:

The magnets in the speakers will affect a boat compass. Avoid mounting the speakers

closer than three feet from the compass. If necessary, a marine installer can help correct any

deviation.

Note:

Before going any further with your assembly, choose one of the methods de-

scribed in Figure 2 above. The instructions for A begin on page 7; B on page 11.

6 October 30, 2001 AM188201_02_V.pdf

Test the speakers

It is a good idea to test your system before installation. With the power turned off, connect

the receiver to the speakers.

The provided speaker cord consists of two insulated wires; one is marked or ribbed, and is

always positive (+). The plain wire is always negative (–). The wires correspond to the red (+)

and black (–) terminals on the back of the speaker, receiver, or amplifier. Place the stripped

end of the positive (+) right channel receiver wire together with the stripped end of the

positive (+) right speaker wire. Then place the stripped end of the negative right channel

receiver wire together with the stripped end of the negative right speaker wire. Repeat this

procedure for the left speaker.

Be sure to connect each wire to the proper terminal (positive to positive, negative to nega-

tive). For this test, just twist the wire ends together. You will use the supplied wire nuts for the

permanent connections.

When you are satisfied that everything works, disconnect the speakers and continue with the

installation.

Mounting the speakers

CAUTION:

Be sure to mount your 131

marine speakers on a bulkhead only. Do not cut

holes in the hull. We recommend you consult a marine installer before drilling or cutting any

holes. Choose a safe spot for drilling. Do not mount the speakers on surfaces with concealed

hazards, such as electrical conduits or plumbing.

The cutting and drilling template

Locate the cutting and drilling template. It is perforated into the inner carton that contained

your grilles and mounting flanges. The template has four functions.

1. It helps you position the speaker enclosure by showing how much room to provide for

the extension of the enclosure behind the bulkhead.

2. It shows you how much room to allow for the snap on grille.

3. It assists you in cutting the appropriate hole size in the bulkhead wall.

4. It helps you drill the mounting screw holes in the bulkhead.

The template has two punch-out hole diameters. Use the smaller size for installation from

behind the bulkhead. Use the larger for installation from the front. See Figures 2 & 3.

Installing Your Speakers

Figure 3

The template

AM188201_02_V.pdf October 30, 2001 7

Installing Your Speakers From The Rear Of The Bulkhead

Drill a starter hole that is large enough

for your sabre saw blade. Be sure to

drill inside and close to the line you

have marked.

Installation from the rear of the bulkhead

A 4

Choose the 5

⁄

inch (13.6 cm) diameter hole size if you can comfortably hold the

speaker enclosure from behind the wall while installing screws from the front. This is

the preferred mounting method. If the hole you cut is not perfect, any slight overcut

will be hidden by the grille.

Determine that there is enough room by

reaching into the mounting area and

sweeping with your hand. Determine

where you will drill the hole for the

speaker. You should also experiment by

placing the speaker enclosure behind

the bulkhead before making your final

selection. Any orientation of the speaker

enclosure is acceptable.

A 1

CAUTION:

Determine whether any

obstacles exist behind the mounting

surface. To be certain, contact your boat

manufacturer or dealer. Also, be certain

that the enclosure will fit within the mount-

ing area before drilling any holes.

Place the template over the area

where the speaker is to be located

and mark the 5

⁄

inch (13.6 cm)

hole with a metal scribing tool or

pencil.

A 3

The round outer edge of the template

shows how much room to allow for

the grille. The long end is used to plan

for room for the enclosure behind the

bulkhead. There are two perforated

circles in the template. Snap out the

smaller one.

A 2

8 October 30, 2001 AM188201_02_V.pdf

Hold the speaker enclosure up to the

hole from behind the bulkhead and find

the best position for the extended

portion of the enclosure. Be sure the

enclosure is hidden behind the bulkhead.

If the enclosure does not fit, use the file

or rasp to enlarge the hole.

Use a half-round file or wood rasp to

smooth out any roughness in the hole

you have cut.

Using the sabre saw, cut the hole for the

speaker, carefully following the line. Take

your time; you want a smooth-edged

circular hole.

Installing Your Speakers From The Rear Of The Bulkhead

Place the mounting flange so that it

interlocks with the enclosure and is flush

with the mounting surface.

A 5

A 6

A 7

A 8

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.

10 October 30, 2001 AM188201_02_V.pdf

Connect the speakers. Be sure the receiver or

amplifier is turned OFF. If possible, disconnect the

power source. Use the supplied silicone-filled wire

nuts to secure the ends of each wire pair. Place the

stripped end of the positive (+) right channel receiver

wire together with the stripped end of the positive (+)

right speaker wire. Place the wire nut over the ends of

the wires and turn it in a clockwise direction. Turn it

with firm pressure until it stops; there should be no

uninsulated wire visible. Repeat this procedure for the

remaining wire end.

Installing Your Speakers From The Rear Of The Bulkhead

A 13

Repeat the above procedure for the left speaker.

Check that all connections are made positive to

positive (+ to +) and negative to negative (– to –).

Tighten any loose connections before you plug in the

receiver or amplifier and turn it on.

Note:

Twisting the ends of the wires together is not

necessary.

Tie a knot in each joined wire pair to protect the

connection from being pulled apart.

A 14

Remove the perforated speaker cone shields

from the enclosure cartons. Insert the tabs of the

shields into the speaker ports. This helps protect

the speaker cone from potential damage during

the installation process.

A 15

Note:

For added protection against water entering

the bulkhead, you can apply a generic silicone

sealant between the flange and the mounting

surface.

A 16

Replace the enclosure behind the bulkhead and

place the mounting flange so that it interlocks with

the enclosure and lines up with the drilled holes.

Attach the flange to the mounting surface using six

screws.

Next, install six screws through the flange into the

matching holes in the enclosure.

Note:

If you plan to use a screw gun to install

the screws, you should first set the gun to its

lowest torque setting (do not exceed 12 inch-

pounds or 135.84 N-cm of torque). If the screw

does not seat properly, finish installing the screw

at the next highest torque setting, or by hand.

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