Bose 151 SE User Manual

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The Bose® 151® SE Environmental Speakers

Owner’s Guide


The Bose® 151® SE Environmental Speakers

Before you begin

Thank you for purchasing Bose 151® SE speakers. Their advanced design and quality construction are intended to providelong-termlistening enjoyment in or outside your home. Your 151SE speakers are engineered to provide quality Stereo Everywhere® speaker performance from a simple, elegant weatherproof design.


Figure 1

Carton contents

Carefully unpack your speakers and save all packing materials for future use. If you discover that the product was damaged in transit, notify Bose Corporation or your authorized Bose dealer immediately. Verify that the carton contains the parts shown in Figure 1.



151® SE speakers

Mounting bracket (2)


Bracket locking


screw (2)


#8 lock washer (2)



¼ inch x9/16 inch




mounting screw (4)


¼ inch lock washer (4)

#12 x 1¾ inch wood screw (4)

#12 x 1 inch wall anchor (4) (for concrete mounting only)

WARNING: To avoid danger of suffocation, keep the plastic bags out of the reach of children.

For your records

Serial numbers are located on the back of each speaker. Write the numbers here and on the product registration card.

Serial numbers: ___________________________________ and ____________________________________

Dealer name: _____________________________________________________________________________

Dealer phone: _______________________________________Purchase date: ________________________

Please read this owner’s guide

Please read this owner’s guide completely before beginning this installation. Failure to follow the instructions in this owner’s guide voids all warranties on your speakers. If you are unsure of your ability to complete this installation, consult a professional installer.

Hereby Bose B.V. declares that this equipment is compliant with the essential requirements of the EMC Directive 89/336/EEC. This equipment is intended for use (amongst others) in all EC/EFTA countries. The complete declaration of conformity can be found on <>.

©2004 Bose Corporation. No part of this work may be reproduced, modified, distributed or otherwise used without prior written permission.


The Bose® 151® SE Environmental Speakers

Required tools and materials

#2 Phillips-headscrewdriver

• Speaker cord: Measure length and choose

Power drill

wire gauge:


• Eye and ear protection



Dust mask

20 ft (6 m), max.

18 (0.82 mm2)


30 ft (9 m), max.

16 (1.30 mm2)

/32 inch (2,5 mm) wood bit, or

50 ft (15 m), max.

14 (2.10 mm2)

¼ inch (6,0 mm) masonry bit

Speaker placement

Figure 2

Speakers mounted on a wall

For best results, mount both speakers horizontally (Figure 2).

Place them a minimum of seven feet apart, facing the listening area.

Make sure they do not face each other.

7 ft (2 m), minimum

Note: For Stereo Everywhere® speaker performance, horizontal mounting is required.

Note: Your 151® SE speakers can be mounted vertically. However, when mounted vertically you will not experience Stereo Everywhere® speaker performance.

Note: If you choose to place the speakers on a flat horizontal surface, put a layer of suitable material (such as rubber) under the speaker to prevent speaker movement or damage to the flat surface due to vibration of the speaker.

CAUTION: Do not mount the brackets on surfaces that are not sturdy enough, or that have hazards concealed behind them, such as electrical wire or plumbing. If you are unsure about installing the bracket, contact a qualified professional installer.

CAUTION: Do not install near any heat sources, such as halogen lamps, registers, stoves or other apparatus (including amplifiers) that produce heat.

CAUTION: Do not hang items from the brackets or speakers. Do not place items on top of the speakers. The brackets were designed to support the weight of the speakers only.

CAUTION: The 151 SE speakers are not intended to be installed in automobiles.

Before mounting your speakers

Check local building codes regarding the installation of outdoor speakers. If you are uncomfortable about installing this product, contact your Bose dealer to arrange for a qualified serviceman to help you.

Measure the length of speaker cord needed to connect each speaker to your amplifier. See “Required tools and materials” for recommended wire lengths and sizes.

Determine the best route to protect the wire.

Make sure the speakers cannot fall and cause injuries.

Keep the speakers at least 9 inches (23 cm) from any video screen or monitor. Bose 151 SE speakers are not magnetically shielded.




The Bose® 151® SE Environmental Speakers

Mounting procedure

1.Remove screw C and lock washerD from the mounting bracket assembly, and remove partB from partA (Figure 3).

Figure 3

Speaker cord


Exploded view of speaker and mounting bracket






Figure 4

Mounting the brackets

2.Hold bracket part A in position against the wall and mark the left and right round holes for the mounting hardware (Figure 4). If you plan to feed speaker cord through the wall, mark the oval speaker cordfeed-throughhole also.


Mount bracket B with


flat end next to terminals.









Mount bracket A with

Speaker cord

locking screw on the left.


3.Drill holes using the appropriate drill bits for the wall material. Refer to “Required tools and materials” on page 3.

Note: If you plan to feed the speaker cord through the bracket, feed the cord through the wall before mounting the bracket.

4.Mount bracket part A to the wall using the appropriate hardware for wood (G) or concrete (H andG). Make sure the hole for the bracket locking screw is on your left (Figure 4).

5.Mount bracket part B to the rear of the speaker using two machine screwsE and two lock washersF (Figure 4).


The Bose® 151® SE Environmental Speakers

6.Secure the speaker with bracket part B to bracket partA using bracket locking screwC and lock washerD (Figure 3). To adjust the angle, loosen screwC slightly (Figure 5), move the speaker up or down, and retighten screwC.

Figure 5


Adjusting speaker angle

Note: Your 151® SE speakers can be mounted vertically. However, when mounted vertically you will not experience Stereo Everywhere® speaker performance.

Note: For vertical mounting, mount bracket partA so that the hole for bracket locking screwC is at thelower end of the bracket. When mounted vertically, you can rotate the logo to be read horizontally. Gently pull out on the logo, rotate it into position and release.

Connecting your speakers to your receiver/amplifier

Figure 6

Speaker wiring

Speaker cord consists of two insulated wires. The wire marked with a stripe or rib is used for the positive (+) red terminal connection. The plain wire is used for the negative (–)black terminal connection. Strip approximately ½ inch (1.3 cm) of insulation from the ends of both wires (Figure 6). Then, twist the ends of each wire so there are no loose strands.

CAUTION: Before making any connections, turn off your receiver/amplifier and unplug it from the AC power outlet.

Rear of speaker

½ inch (1.3 cm)

(+) Wire

(+) Terminal

1.At the back of your speaker (Figure 6), unscrew the hex knobs on the terminal posts until you can see the small hole going through each post.

2.Insert the marked (+) wire into the red (+) terminal. Insert the plain (–)wire into the black

(–)terminal. Tighten the knobs to secure the wires.

3.Check the speaker connections carefully. Make sure no loose strands of wire touch across terminals creating a short circuit that can damage an amplifier or receiver.

Note: After making the connections, any bare lengths of speaker wire can be affected by exposure to the outdoor environment. To protect the speaker wires, apply a thin coating of silicone caulking material, such as RTV adhesive, to any bare sections of speaker wire.




The Bose® 151® SE Environmental Speakers

4.Connect the speaker on the left side of the listening area to the left amplifier channel (Figure 7). Attach the marked wire to the red (+) terminal. Attach the plain wire to the black


5.Connect the speaker on the right side of the listening area to the right amplifier channel. Attach the marked wire to the red (+) terminal. Attach the plain wire to the black (–)terminal.

Note: If your speakers are being connected to your receiver or amplifier as a secondary set of speakers, be sure to make the appropriate connections to the “B” channel.

Figure 7

Example of amplifier rear panel connections


(+) wire

Testing the connections

Set the balance control on your receiver or amplifier to normal (centered) and play some deep bass passages of music through the speakers. Verify that the sound seems to come from a point between the two speakers, and that the bass is full and natural. If not, check your connections again; they may be reversed, causing the speakers to play out of phase. Make sure all the wires are connected positive to positive (+ to +) and negative to negative (– to –).



What to do






Check the settings on your receiver/amplifier. Refer to its owner’s guide for instructions.

speaker plays


If your speakers are connected to the “B” output, check that the “B” output is selected.




Bass or treble

Check the tonal balance setting on your receiver or amplifier.

is weak






Only one


Make sure the balance control is centered on your receiver/amplifier.

speaker plays


Check the wires connected to the speaker that does not play. Make sure the wires are in good




condition and are firmly connected.



One speaker

1. Disconnect the working speaker from the receiver or amplifier.

still does not


Switch the cord of the faulty speaker from its original receiver or amplifier jacks to the other set of



jacks (the working speaker was originally attached to those jacks). If the speaker now works, the





problem is your receiver or amplifier. Reconnect the speakers to a working unit. If the speaker still



does not work, continue.



Remove the cord from the working speaker and connect it to the faulty speaker. If the speaker now



works, the original speaker cord is bad. If the speaker still does not work, the speaker is bad.



If trouble persists, contact your authorized Bose dealer, who will arrange for service. Or, contact



Bose Customer Service. Refer to the list of phone numbers and addresses included in the carton.





The Bose® 151® SE Environmental Speakers

Cleaning your speakers

Use a cloth dampened in mild detergent and water to remove dust or dirt from the outside of your 151® SE speakers. Or, use a hose to rinse them thoroughly with fresh water. Do not use enough pressure to force water behind the grille and into the driver or the acoustic port.

Customer service

If you need help with your new product, contact Bose Customer Service. Refer to the list of phone numbers and addresses included in the carton.

Limited warranty

Bose 151 SE environmental speakers are covered by a limitedfive-yeartransferable warranty. Details of coverage are on the product registration card that came with your speakers.

Technical information

Driver complement

Three (3) 2½ inch full-rangeenvironmental drivers per speaker


4½ in H x 6 in D x 12½ in W (11.4 cm x 15.2 cm x 31.8 cm)


Compatible with amplifiers or receivers rated 10 to 100 watts per channel at 4 to 8 ohms

50W IEC continuous power handling at 6 ohms

Environmental capabilities

Salt fog, sun, high humidity (100% relative humidity)

Temperature extremes: -40°Fto 158°F(-40°Cto 70°C)



©2004 Bose Corporation

The Mountain, Framingham, MA 01701-9168USA

273809-ENGvoAM Rev.00