BOSE MUSIC AMPLIFIER
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IMPORTANT SAFETY INSTRUCTIONS
Please read and keep all safety, security, and use instructions.
Bose Corporation hereby declares that this product is in compliance with the essential requirements and
other relevant provisions of Directive 2014/53/EU and all other applicable EU directive requirements.
The complete declaration of conformity can be found at: www.Bose.com/compliancewww.Bose.com/compliance
This product conforms to all applicable Electromagnetic Compatibility Regulations 2016 and all other
applicable UK regulations. The complete declaration of conformity can be found at:
www.Bose.com/compliancewww.Bose.com/compliance
Bose Corporation hereby declares that this product is in compliance with the essential requirements per
Radio Equipment Regulations 2017 and all other applicable UK regulations. The complete declaration of
conformity can be found at: www.Bose.com/compliancewww.Bose.com/compliance
Important Safety Instructions
Do not use this apparatus near water.
Clean only with a dry cloth.
Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.
Only use attachments/accessories specified by the manufacturer.
Refer all servicing to qualified personnel. Servicing is required when the apparatus has been damaged in any way,
such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the
apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.
WARNINGS/CAUTIONS
This symbol on the product means there is uninsulated, dangerous voltage within the product enclosure that
may present a risk of electrical shock.
This symbol on the product means there are important operating and maintenance instructions in this guide.
Contains small parts which may be a choking hazard. Not suitable for children under age 3.
This product contains a tempered glass surface. Use caution to avoid impact. In the event of breakage, use
care in handling broken glass.
• To reduce the risk of fire or electrical shock, do NOT expose this product to rain, dripping, splashing, or moisture and
do not place liquid filled objects such as vases, on or near the product.
• Keep the product away from fire and heat sources. Do NOT place naked flame sources, such as lighted candles, on
or near the product.
• Do NOT make unauthorized alterations to this product.
• Do NOT use a power inverter with this product.
• Do NOT use in vehicles or boats.
• Where the mains plug or an appliance coupler is used as the disconnect device, the disconnect device shall remain
readily operable.
• Only use the mounting hardware supplied with this product.
• Do not mount on surfaces that are not sturdy, or that have hazards concealed behind them, such as electrical wiring
or plumbing. If you are not sure about installing the bracket, contact a qualified professional installer. Ensure the
bracket is installed according to local building codes.
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IMPORTANT SAFETY INSTRUCTIONS
• Do not mount the product in locations where condensation may occur.
• Only for mounting on the following surfaces:
– Rack
– Wallboard ≥ 3/8” (10 mm)
– Masonry
– Wood
If mounted on surfaces other than stated above please contact a professional installer.
• Due to ventilation requirements, Bose does not recommend placing the product in a confined space such as in a
wall cavity or in an enclosed cabinet.
• Do not place or install near any heat sources, such as fireplaces, radiators, heat registers, stoves or other apparatus
(including amplifiers) that produce heat.
• To reduce the risk of fire, do not place any heating or cooking appliance beneath this product.
• The product label is located on the bottom of the product.
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REGULATORY AND LEGAL INFORMATION
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to
Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a
residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed
and used in accordance with the instructions, may cause harmful interference to radio communications. However,
there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by turning the equipment o and on, the user
is encouraged to try to correct the interference by one or more of the following measures:
• Reorient or relocate the receiving product or antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit dierent from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
Changes or modifications not expressly approved by Bose Corporation could void the user’s authority to operate
this equipment.
This device complies with part 15 of the FCC Rules and with ISED Canada license-exempt RSS standard(s). Operation
is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must
accept any interference received, including interference that may cause undesired operation.
This device complies with FCC and ISED Canada radiation exposure limits set forth for general population. This
equipment should be installed and operated with a minimum distance of 20 cm between radiator and your body. This
transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.
This device for operation in the 5150 – 5250 MHz is only for indoor use to reduce the potential for harmful interference
to co-channel mobile satellite systems.
CAN ICES-3(B)/NMB-3(B)
For Europe:
Frequency bands of operation 2400 to 2483.5 MHz, 5150 to 5350 MHz, and 5470 to 5725 MHz.
Maximum transmit power less than 20 dBm EIRP.
Maximum transmit power is below regulatory limits such that SAR testing is not necessary and exempt per
applicable regulations.
This device is restricted to indoor use when operating in the 5150 to 5350 MHz frequency range in all EU Member
States listed in the table.
BE DK IE UK(NI) FR CY SK HU AT SE
BG DE PT EL HR LV LT MT PL
CZ EE FI ES IT RO LU NL SI
This symbol means the product must not be discarded as household waste, and should be delivered to an
appropriate collection facility for recycling. Proper disposal and recycling helps protect natural resources,
human health and the environment. For more information on disposal and recycling of this product, contact
your local municipality, disposal service, or the shop where you bought this product.
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REGULATORY AND LEGAL INFORMATION
Low-power Radio-frequency Devices Technical Regulations
Without permission granted by the NCC, any company, enterprise, or user is not allowed to change frequency,
enhance transmitting power or alter original characteristic as well as performance to an approved low power
radio-frequency devices. The low power radio-frequency devices shall not influence aircraft security and interfere
legal communications; If found, the user shall cease operating immediately until no interference is achieved. The said
legal communications means radio communications is operated in compliance with the Telecommunications
Management Act. The low power radio-frequency devices must be susceptible with the interference from legal
communications or ISM radio wave radiated devices.
Product Power State Table
The product, in accordance with the Ecodesign Requirements for Energy Related Products Directive 2009/125/EC and
the Ecodesign for Energy-Related Products and Energy Information (Amendment) (EU Exit) Regulations 2020, is in
compliance with the following norm(s) or document(s): Regulation (EC) No. 1275/2008, as amended by Regulation
(EU) No. 801/2013. The product is equipment with HiNA functionality.
Required Power State Information
Power Modes
Standby Networked Standby
Power consumption in specified power mode, at
230V/50Hz input
≤ 0.5 W Wi-Fi®, Ethernet, and Bluetooth® ≤ 3.0 W
Time after which equipment is automatically
switched into mode
< 2.5 hours ≤ 20 minutes
Power consumption in networked standby if all wired
network ports are connected and all wireless network
ports are activated, at 230V/50Hz input
N/A ≤ 3.0 W
Wireless network port deactivation/activation
procedures. Deactivating all networks will enable
standby mode.
Wi-Fi: To deactivate, insert a thin paperclip into the hole in the back of
the amplifier and press and hold for 2 seconds until the light on the back
of the amplifier blinks white 3 times.
Bluetooth: To deactivate, clear the Bluetooth pairing list. Press and hold
the Bluetooth button l on the amplifier for 10 seconds. To reactivate,
connect a Bluetooth source.
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REGULATORY AND LEGAL INFORMATION
China Restriction of Hazardous Substances Table
Names and Contents of Toxic or Hazardous Substances or Elements
Toxic or Hazardous Substances and Elements
Part Name
Lead
(Pb)
Mercury
(Hg)
Cadmium
(Cd)
Hexavalent
(CR(VI))
Polybromi-
nated
Biphenyl
(PBB)
Polybromi-
nated
diphenylether
(PBDE)
PCBs X O O O O O
Metal Parts X O O O O O
Plastic Parts O O O O O O
Speakers X O O O O O
Cables X O O O O O
This table is prepared in accordance with the provisions of SJ/T 11364.
O: Indicates that this toxic or hazardous substance contained in all of the homogeneous materials for this part is
below the limit requirement of GB/T 26572.
X: Indicates that this toxic or hazardous substance contained in at least one of the homogeneous materials used
for this part is above the limit requirement of GB/T 26572.
Taiwan Restriction of Hazardous Substances Table
Equipment name: Amplifier, Type designation: 437308
Restricted substances and its chemical symbols
Unit
Lead
(Pb)
Mercury (Hg) Cadmium (Cd)
Hexavalent
chromium (Cr+6)
Polybrominated
biphenyls (PBB)
Polybrominated
diphenyl ethers
(PBDE)
PCBs
- ○ ○ ○ ○ ○
Metal Parts
- ○ ○ ○ ○ ○
Plastic Parts
○ ○ ○ ○ ○ ○
Speakers
- ○ ○ ○ ○ ○
Cables
- ○ ○ ○ ○ ○
Note 1: “○” indicates that the percentage content of the restricted substance does not exceed the percentage of reference value
of presence.
Note 2: The “−” indicates that the restricted substance corresponds to the exemption.
Date of Manufacture: The eighth digit in the serial number indicates the year of manufacture; “2” is 2012 or 2022.
China Importer: Bose Electronics (Shanghai) Company Limited, Level 6, Tower D, No. 2337 Gudai Rd. Minhang
District, Shanghai 201100
EU Importer: Bose Products B.V., Gorslaan 60, 1441 RG Purmerend, The Netherlands
Mexico Importer: Bose de México S. de R.L. de C.V., Avenida Prado Sur #150, Piso 2, Interior 222 y 223, Colonia Lomas
de Chapultepec V Sección, Miguel Hidalgo, Ciudad de México, C.P. 11000 Phone Number: +5255 (5202) 3545
Taiwan Importer: Bose Limited Taiwan Branch (H.K.), 9F., No.10, Sec. 3, Minsheng E. Road, Zhongshan Dist. Taipei City
10480, Taiwan Phone Number: +886-2-2514 7676
UK Importer: Bose Limited, Bose House, Quayside Chatham Maritime, Chatham, Kent, ME4 4QZ, United Kingdom
Input Rating: 100 – 240V 50/60Hz, 240W
The CMIIT ID is located on the label on the bottom of the product.
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REGULATORY AND LEGAL INFORMATION
Please complete and retain for your records
The serial and model numbers are located on the label on the bottom of the product.
Serial number: ____________________________________________________________________
Model number: 437308
Please keep your receipt with your owner’s guide. Now is a good time to register your Bose product.
You can easily do this by going to worldwide.Bose.com/ProductRegistrationworldwide.Bose.com/ProductRegistration
Security Information
This product is capable of receiving automatic security updates from Bose. To receive automatic security
updates, you must complete the product setup process in the Bose Music app and connect the product to
the Internet. If you do not complete the setup process, you will be responsible for installing security
updates that Bose makes available.
Amazon, Alexa, Amazon Music, and all related logos are trademarks of Amazon.com, Inc. or its aliates.
Apple, the Apple logo, Apple Music, and AirPlay are trademarks of Apple Inc., registered in the U.S. and
other countries.
Use of the Works with Apple badge means that an accessory has been designed to work specifically with the
technology identified in the badge and has been certified by the developer to meet Apple performance standards.
The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such
marks by Bose Corporation is under license.
Google, Google Play, and Chromecast built-in are trademarks of Google LLC.
This product contains the iHeartRadio service. iHeartRadio is a registered trademark of iHeartMedia, Inc.
This product is protected by certain intellectual property rights of Microsoft. Use or distribution of such technology
outside of this product is prohibited without a license from Microsoft.
Pandora is a trademark or registered trademark of Pandora Media, Inc. used with permission.
This product incorporates Spotify software which is subject to third-party licenses found here:
www.spotify.com/connect/third-party-licenseswww.spotify.com/connect/third-party-licenses
Spotify is a registered trademark of Spotify AB.
USB Type-C® and USB-C® are registered trademarks of USB Implementers Forum.
Wi-Fi is a registered trademark of Wi-Fi Alliance®.
Bose, Bose Bass Module, Bose Music, Bose Music Amplifier, the Bose Music logo, Bose Noise Cancelling Headphones,
QuietComfort, SimpleSync, SoundLink, SoundLink Revolve, and Virtually Invisible are trademarks of Bose Corporation.
Bose Corporation Headquarters: 1-877-230-5639
©2022 Bose Corporation. No part of this work may be reproduced, modified, distributed, or otherwise used without
prior written permission.
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To view the license disclosures that apply to the third-party software packages included as components of your Bose
Music Amplifier product:
1. On the amplifier, press and hold the Bluetooth button l and Reset button for 15 seconds.
2. Connect a USB cable to the SERVICE connector on the back of the amplifier.
3. Connect the other end of the cable to a computer.
4. On the computer, enter
http://203.0.113.1/opensource
in a browser window to display the EULA and license disclosure.
LICENSE DISCLOSURES
CONTENTS
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WHAT’S IN THE BOX
Contents ............................................................................................................................. 13
AMPLIFIER PLACEMENT
Recommendations.......................................................................................................... 14
SPEAKER CONNECTION GUIDELINES
Speaker wire length recommendations ................................................................. 15
CONNECT SPEAKERS ................................................................................................ 16
POWER
Connect the amplifier to power ................................................................................ 19
Network standby ............................................................................................................. 19
BOSE MUSIC APP SETUP
Download the Bose Music app .................................................................................. 20
EXISTING BOSE MUSIC APP USERS
Add the Main amplifier to an existing account ................................................... 21
Connect to a dierent Wi-Fi® network ................................................................... 21
MAIN AND SUPPLEMENTAL AMPLIFIERS
Use case 1 ........................................................................................................................... 22
Use case 2 .......................................................................................................................... 23
Use case 3 .......................................................................................................................... 23
CONNECT THE MAIN AMPLIFIER
Connect using the Bose Music app ......................................................................... 24
Connect using an Ethernet cable ............................................................................. 24
Connect an additional Main amplifier ............................................................. 24
CONTENTS
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CONNECT A SUPPLEMENTAL AMPLIFIER
Connect to the Main amplifier ................................................................................... 25
Connect an additional Supplemental amplifier .......................................... 25
AMPLIFIER PORTS....................................................................................................... 26
AMPLIFIER AND SPEAKER SETTINGS
Amplifier settings ........................................................................................................... 27
Speaker settings .............................................................................................................. 29
WORK WITH YOUR VOICE ASSISTANT
Google Assistant ............................................................................................................. 30
Amazon Alexa .................................................................................................................. 30
STREAM AUDIO WITH CHROMECAST ............................................................. 31
STREAM AUDIO WITH AIRPLAY
Stream audio from the Control Center ................................................................... 32
Stream audio from an app .......................................................................................... 32
PRESET PERSONALIZATION
Set a preset ....................................................................................................................... 33
Play a preset ..................................................................................................................... 33
BLUETOOTH® CONNECTIONS
Connect your mobile device....................................................................................... 34
Disconnect a mobile device ........................................................................................ 35
Reconnect a mobile device ......................................................................................... 35
Connect an additional mobile device ..................................................................... 35
Clear the amplifier device list ..................................................................................... 35
CONTENTS
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AMPLIFIER STATUS
Bluetooth and error status .......................................................................................... 36
Wi-Fi and power status ................................................................................................ 37
Main amplifier ........................................................................................................... 37
Supplemental amplifier ........................................................................................ 37
Update, reset, and error status .................................................................................. 38
ADVANCED FEATURES
Disable/Enable Wi-Fi capability ............................................................................... 39
Overload protection ...................................................................................................... 39
CONNECT BOSE PRODUCTS
Connect a Bose Bass Module ..................................................................................... 40
Connect a Bose SoundLink Bluetooth speaker or Bose headphones
usingSimpleSync™ technology ................................................................................. 41
Benefits ....................................................................................................................... 41
Compatible products ............................................................................................ 41
Connect using the Bose Music app ................................................................. 42
Reconnect a Bose SoundLink Bluetooth speaker or Bose headphones ... 42
CARE AND MAINTENANCE
Update the amplifier ...................................................................................................... 43
Main amplifier ........................................................................................................... 43
Supplemental amplifier ........................................................................................ 43
Clean the amplifier ......................................................................................................... 43
Replacement parts and accessories ........................................................................ 43
Limited warranty ............................................................................................................. 43
TECHNICAL INFORMATION ................................................................................... 44
CONTENTS
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TROUBLESHOOTING
Try these solutions first ................................................................................................ 45
Other solutions ................................................................................................................ 45
Reset the amplifier ......................................................................................................... 51
Restore the amplifier to factory default ................................................................ 51
APPENDIX A: RACK MOUNTING
Connect the brackets .................................................................................................... 52
Attach to the rack ........................................................................................................... 53
Place the amplifier .......................................................................................................... 55
APPENDIX B: WALL MOUNTING
Hardware specifications ............................................................................................... 56
Attach the mounting bracket ..................................................................................... 57
Attach the amplifier ....................................................................................................... 60
APPENDIX C: CONNECT EXTERNAL SOURCE
Using an RCA audio cable ........................................................................................... 61
Using an optical cable ................................................................................................... 61
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CONTENTS
Confirm that the following parts are included:
Bose Music Amplifier Power cord*
Rack screws for rack mounting (3) Connecting screws for rack mounting (3)
RACK MOUNT
FRONT
WALL MOUNT
UP
RACK MOUNT
FRONT
WALL MOUNT
UP
Mounting bracket Rack bracket
* May ship with multiple power cords. Use the power cord for your region.
NOTE: If part of the amplifier is damaged, don’t use it. Contact your authorized Bose
dealer or Bose customer service.
Visit: support.Bose.com/BMAsupport.Bose.com/BMA
WHAT’S IN THE BOX
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AMPLIFIER PLACEMENT
RECOMMENDATIONS
• Install the amplifier indoors.
• Make sure there is an AC (mains) outlet nearby.
• To avoid interference, keep other wireless equipment 1 – 3 ft (0.3 – 0.9 m) away
from the amplifier.
• For optimum performance, place the amplifier in a well-ventilated area.
• Place the amplifier on a shelf, or mount it on a rack or wall.
• When mounting on a rack, make sure the rack mount arrow and four tabs are
facing the front of the rack (see page 55).
• When mounting multiple amplifiers on a rack, use a separate rack mount for
each amplifier.
• When mounting on a wall, make sure the wall mount arrow and four tabs are
facing up (see page 57).
CAUTIONS:
• Place the amplifier in an area where the maximum ambient temperature is less than
104°F (40°C).
• Keep the back side of the amplifier at least 3 – 6 in (7.62 – 15.24 cm) away from any
other surface. Do not block airflow from the back of the amplifier.
• Do NOT place the amplifier in a completely enclosed area. Doing so may result in
poor performance.
3 - 6"
7.62 - 15.24 cm
3 - 6"
7.62 - 15.24 cm
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SPEAKER CONNECTION GUIDELINES
• One pair of speakers requires 4 ohm minimum each.
• Two pairs of speakers require 8 ohm minimum each.
CAUTION: Use only unpowered speakers. Do NOT connect any make or model of
powered speakers. Doing so may cause damage to the equipment.
SPEAKER WIRE LENGTH RECOMMENDATIONS
MAXIMUM LENGTH GAUGE
30 ft (9 m)
18 (0.82 mm
2
)
45 ft (14 m)
16 (1.3 mm
2
)
70 ft (21 m)
14 (2.0 mm
2
)
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CONNECT SPEAKERS
Before connecting your speakers, place your speakers in their permanent location and
make sure the amplifier is unplugged from an AC (mains) power outlet.
Speaker wires consist of two insulated wires:
• The marked wire (stripes, ribbing, or color) connects to the positive (+) terminal.
• The plain wire connects to the negative (–) terminal.
1. Remove terminal block A from the SPEAKERS OUT port.
L L R R
L L R R
L L R R
2. Connect the speaker wires to terminal block A.
a. Insert the left speaker’s marked wire into the L + positive terminal and the
plain wire into the L - negative terminal.
b. Insert the right speaker’s marked wire into the R + positive terminal and the
plain wire into the R - negative terminal.
L L R R
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CONNECT SPEAKERS
3. Using a small, flat-head screwdriver, tighten the screws on the terminals clockwise
to secure the wires.
L L R R
4. Reinsert terminal block A into the SPEAKERS OUT port.
L L R R
L L R R
L L R R
5. Connect the other end of the speaker wires to your speakers.
For instructions, refer to the online owner’s guide for your speaker.
NOTE: Use a silicone caulking material such as RTV adhesive (available at
your local hardware store) to protect the wiring at any outdoor
speaker connections.
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CONNECT SPEAKERS
Connect additional speakers
You can connect up to two pairs of speakers to the amplifier for fuller sound.
To connect a second pair of speakers, repeat steps in “Connect Speakers” on page
16, using terminal block B.
L L R R
L L R R
L R R
NOTE: For best sound quality and balanced volume, when connecting two pairs of
speakers, they should be the same speaker model since the same EQ setting
will be applied to both pairs of speakers.
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POWER
CONNECT THE AMPLIFIER TO POWER
1. Connect the power cord to the POWER port on the back of the amplifier.
2. Plug the other end of the power cord into an AC (mains) power outlet.
The light on the back of the amplifier slowly blinks amber.
NOTES:
• If the amplifier has been set up and is set to Main (default), the light on the back
of the amplifier glows solid white.
• If the amplifier has been set up and is set to Supplemental, the light on the back
of the amplifier glows solid green.
NETWORK STANDBY
The amplifier transitions to network standby when audio has stopped and you have
not pressed any buttons for 20 minutes. To wake the amplifier from network standby,
play or resume audio using the Bose Music app on your mobile device or reconnect a
Bluetooth source.
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BOSE MUSIC APP SETUP
The Bose Music app lets you set up and control the Main amplifier (see page 22)
from any mobile device, such as a smartphone or tablet.
Using the app, you can stream music, add music services, explore internet radio
stations, set and change presets, work with your voice assistant, manage Main
amplifier settings, and get updates and new features.
NOTE: If you have already created a Bose Music account for another Bose product,
add the amplifier to your existing account (see page 21).
DOWNLOAD THE BOSE MUSIC APP
1. On your mobile device, download the Bose Music app.
BOSE MUSIC
2. Follow the app instructions to set up the amplifier.
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EXISTING BOSE MUSIC APP USERS
ADD THE MAIN AMPLIFIER TO AN EXISTING ACCOUNT
To add your Bose Music Amplifier, open the Bose Music app and add your amplifier.
NOTES:
• You can only add a Main amplifier using the Bose Music app. Supplemental
amplifiers don’t display on your network or in the Bose Music app.
• To play the same audio on multiple speakers simultaneously, you can group Main
amplifiers together using the Bose Music app. You can access this option from the
main page. For more information, visit: support.Bose.com/BMAGroupingsupport.Bose.com/BMAGrouping
CONNECT TO A DIFFERENT WI-FI NETWORK
Connect to a dierent network if your network name or password has changed, or if
you want to change or add another network.
1. Press and hold the Reset button for 5 seconds until the light on the back of the
amplifier slowly blinks amber.
2. On your mobile device, open your Wi-Fi settings.
3. Select Bose Music Amplifier.
4. Open the Bose Music app and follow the app instructions.
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MAIN AND SUPPLEMENTAL AMPLIFIERS
The amplifier can power up to two pairs of speakers. It can be set as the Main amplifier
(default) or as a Supplemental amplifier (see page 27).
The Main amplifier connects to your network using a Wi-Fi connection or Ethernet
cable (not provided). It can be controlled using the Bose Music app, your mobile
device, or your voice assistant-enabled device connected to your network.
A Supplemental amplifier connects to the Main amplifier using an RCA audio cable
and receives audio output from the Main amplifier. Supplemental amplifiers play the
same audio as the Main amplifier, but don’t display on your network, the Bose Music
app, or your mobile device and can only play audio from the LINE IN port.
You can connect up to four Supplemental amplifiers to the Main amplifier for best
sound quality. The amplifiers can be configured depending on the location or size of
your environment, how many speakers you want to power, or where you want your
audio to play.
NOTES:
• For best sound quality and balanced volume, when connecting a Supplemental
amplifier to the Main amplifier, you should use the same speaker model and number
of speakers per amplifier.
• Depending on your environment, it’s possible to connect more than four
Supplemental amplifiers to the Main amplifier without aecting performance.
USE CASE 1
Control up to two pairs of speakers in the same space, where the speakers play the
same audio with little to no delay.
Wi-Fi
or
Ethernet
SPEAKERS OUT
Speakers
Speakers (optional)
Main
Network
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MAIN AND SUPPLEMENTAL AMPLIFIERS
USE CASE 2
Control multiple pairs of speakers in a larger space, where all speakers power on and
o simultaneously and play the same audio with little to no delay.
Wi-Fi
or
Ethernet
LINE OUT
LINE IN
Main Supplemental
Network
Speakers
Speakers (optional)
SPEAKERS OUT
Speakers (optional)
SPEAKERS OUT
Speakers
USE CASE 3
Control multiple systems (amplifier and speakers) independently, where each system
plays dierent audio.
Wi-Fi
Main
Main
Network
Speakers
Speakers
Speakers (optional)
Speakers (optional)
SPEAKERS OUT
SPEAKERS OUT
NOTES:
• Main amplifiers can also be connected to your network using an Ethernet cable
(see page 24).
• For best sound quality and balanced volume, when connecting multiple pairs of
speakers, they should be the same speaker model since the same EQ setting will be
applied to the speakers.
• To play the same audio on all speakers simultaneously, for best sound quality group
the Main amplifiers together using the Bose Music app. You can access this option
from the main page. For more information, visit: support.Bose.com/BMAGroupingsupport.Bose.com/BMAGrouping
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You connect the Main amplifier to your network using the Bose Music app or an
Ethernet cable (not provided).
CONNECT USING THE BOSE MUSIC APP
To connect the Main amplifier to your network using the Bose Music app,
see page 20.
CONNECT USING AN ETHERNET CABLE
NOTE: If you connect to your network using an Ethernet cable without finishing setup
using the Bose Music app, you will only be able to play audio from a
Bluetooth source.
1. On your router, connect one end of an Ethernet cable to an Ethernet port.
2. On the Main amplifier, connect the other end of the cable to an Ethernet port.
Router
Main amplifier
Connect an additional Main amplifier
You can connect an additional Main amplifier directly to the router (see “Connect
using an Ethernet cable”) or directly to the initial Main amplifier.
1. On the Main amplifier, connect one end of an Ethernet cable to an Ethernet port.
2. On the additional Main amplifier, connect the other end of the cable to an
Ethernet port.
Main amplifier
Additional Main amplifier
CONNECT THE MAIN AMPLIFIER
CONNECT A SUPPLEMENTAL AMPLIFIER
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CONNECT A SUPPLEMENTAL AMPLIFIER
You connect a Supplemental amplifier to the Main amplifier or to another
Supplemental amplifier using an RCA audio cable (not provided).
NOTE: You can connect up to four Supplemental amplifiers to the Main amplifier for
best sound quality. Depending on your environment, it’s possible to connect
additional amplifiers without aecting performance.
CONNECT TO THE MAIN AMPLIFIER
1. On the Main amplifier, connect the audio cable’s white connector to the white LINE
OUT port and the red connector to the red LINE OUT port.
2. On the Supplemental amplifier, connect the other white connector to the white
LINE IN port and the red connector to the LINE IN port.
Main amplifier Supplemental amplifier
Connect an additional Supplemental amplifier
1. On the Supplemental amplifier, connect the audio cable’s white connector to the
white LINE OUT port and the red connector to the red LINE OUT port.
2. On the additional Supplemental amplifier, connect the other white connector to
the white LINE IN port and the red connector to the LINE IN port.
Supplemental amplifier Additional Supplemental amplifier
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AMPLIFIER PORTS
PORT DESCRIPTION
POWER
Applies power when the AC power cord is inserted into the port and
then plugged into an AC (mains) outlet (see page 19).
Enables you to connect the Main amplifier to your network or to
connect multiple Main amplifiers together using an Ethernet cable (not
provided). See page 24.
LINE OUT
LINE IN
Enables you to connect a Supplemental amplifier or an external source
using a RCA audio cable (not provided). See page 61.
BASS
Enables you to connect a Bose Bass Module using a 3.5 mm stereo
audio cable (not provided). See page 40.
OPTICAL IN
Enables you to play digital audio from an external source using an
optical cable (not provided). See page 61.
SERVICE USB Type-C® port for service.
SPEAKERS OUT Enables you to connect up to two pairs of speakers (see page 18).
AMPLIFIER AND SPEAKER SETTINGS
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AMPLIFIER AND SPEAKER SETTINGS
AMPLIFIER SETTINGS
The ADVANCED SETTING switches are configured depending on how you want to
hear your audio. To configure the amplifier, flip the appropriate ADVANCED SETTING
switch(es) down.
MODE SWITCH POSITION DESCRIPTION
Main
A – Up
Set the amplifier to Main.
NOTE: Main amplifiers can be connected to
your network using the Bose Music app or an
Ethernet cable (not provided).
See page 24.
Supplemental
A – Down
Set the amplifier to Supplemental.
NOTES:
• Supplemental amplifiers connect to the
Main amplifier (or another Supplemental
amplifier) using an RCA audio cable and
play audio from the Main amplifier on the
LINE IN port.
• Supplemental amplifiers can’t connect to
your network and don’t display in the
Bose Music app.
N/A
B
Reserved for future use.
Stereo
C – Up Set the audio output to Stereo.
Mono
C – Down
Set the audio output to Mono.
NOTE: Mono is best when speakers are
far apart.
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MODE SWITCH POSITION DESCRIPTION
Line out:
variable volume
D – Up
Control the volume using the Bose
Music app.
NOTE: This setting applies to the
Main amplifier LINE OUT audio and is heard
through the Supplemental amplifier.
Line out:
fixed volume
D – Down
Control the volume using the connected
device with volume control.
NOTES:
• When the volume is fixed, you can’t
control the volume using the
Bose Music app.
• This setting applies to the Main amplifier.
NOTES:
• The default position for all switches is up.
• Each switch can be configured independently.
• If an ADVANCED SETTING switch is flipped while the amplifier is powered on, the
amplifier will reset.
AMPLIFIER AND SPEAKER SETTINGS
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AMPLIFIER AND SPEAKER SETTINGS
SPEAKER SETTINGS
You can apply a customized EQ setting to the Bose 251 Environmental Speakers or
Bose Virtually Invisible 791 speakers. For all other speakers, the default EQ setting
is used.
To apply the customized EQ setting to your Bose 251 Environmental Speakers or Bose
Virtually Invisible 791 speakers, flip the appropriate SPEAKER SETTING switch down.
To apply the default EQ setting to all other speakers, leave all switches up.
PRODUCT SWITCH POSITION
Bose 251 Environmental Speakers
1 – Down 2 – Up 3 – Up
Bose Virtually Invisible 791 speakers
1 – Up 2 – Down 3 – Up
All other speakers
1 – Up 2 – Up 3 – Up
NOTE:
• The default position for all switches is up.
• If any combination other than what is shown in the table above is used, the default
EQ setting is used.
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GOOGLE ASSISTANT
The amplifier is compatible with a Google Assistant-enabled device connected to your
network. Control the amplifier using just your voice with Google.
Start with saying “Hey Google,” then say your request on <amplifier name>.
For example, try playing your favorite music. Just say “Hey Google, play My Workout
playlist on Family Room.”
NOTES:
• Make sure you say the amplifier name you assigned in the Bose Music app. If
multiple amplifiers have the same name, use the name assigned in the Google
Assistant app or change the name in the Bose Music app.
• Google Assistant isn’t available in all languages and countries.
• For more information on what Google Assistant can do, visit:
https://support.google.com/assistanthttps://support.google.com/assistant
AMAZON ALEXA
If you have a separate device with Alexa Built-In connected to your network, you can
control the amplifier from that device with voice commands. To set up voice control,
enable the skill and link your Alexa account to your Bose account. Then just ask Alexa
to play music.
Start with “Alexa,” then say your request on <amplifier name>. For example, try
playing your favorite music. Just say, “Alexa, play My Workout playlist on
Family Room.”
NOTES:
• Make sure you say the amplifier name you assigned in the Bose Music app. If
multiple amplifiers have the same name, use the name assigned in the Alexa app or
change the name in the Bose Music app.
• Alexa isn’t available in all languages and countries.
• For more information about what Alexa can do, visit:
https://www.amazon.com/usealexahttps://www.amazon.com/usealexa
WORK WITH YOUR VOICE ASSISTANT
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STREAM AUDIO WITH CHROMECAST
The amplifier comes with Chromecast built-in. With Chromecast built-in, you can
stream audio from supported apps by simply tapping the Cast button.
NOTES:
• To use Chromecast built-in, you must have a Wi-Fi connection.
• Support for new apps is added periodically.
Your phone is your remote
• Simply tap the Cast button from apps you already know and love. No new logins or
downloads required.
• Use your phone to search, play, pause, and turn up the volume from anywhere in
the home.
• While you’re streaming, you can keep using your phone for other things – scroll
through social media, send a text, and even accept calls.
• Enjoy music throughout your house when you use multi-room casting with
Chromecast-enabled amplifiers.
Unlimited entertainment, all on your schedule
Choose from millions of songs from popular music services like Pandora, Spotify,
and TuneIn.
To enable Chromecast built-in, use the Bose Music app. You can access this option
from the Settings menu.
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STREAM AUDIO WITH AIRPLAY
The amplifier is capable of playing AirPlay 2 audio, which allows you to quickly stream
audio from your Apple device to the amplifier.
NOTES:
• To use AirPlay 2, you need an Apple device running iOS 11.4 or later.
• Your Apple device and amplifier must be connected to the same Wi-Fi network.
• For more information about AirPlay, visit: https://www.apple.com/airplayhttps://www.apple.com/airplay
STREAM AUDIO FROM THE CONTROL CENTER
1. On your Apple device, open the Control Center.
2. Tap and hold the audio card in the top-right corner of the screen, then tap
the AirPlay icon A.
3. Select your amplifier.
STREAM AUDIO FROM AN APP
1. Open a music app (like Apple Music), and select a track to play.
2. Tap A.
3. Select your amplifier.
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PRESET PERSONALIZATION
You can personalize six presets to your favorite streaming music services, stations,
playlists, artists, albums, or songs from your music library. You can access your music,
at any time, with a simple touch of a button in the Bose Music app.
NOTE: You can’t set presets when your source is a Bluetooth connection.
SET A PRESET
1. Stream music using the app.
2. While the music is playing, press and hold a preset in the app.
PLAY A PRESET
Once you personalize your presets, press a preset in the Bose Music app.
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BLUETOOTH CONNECTIONS
CONNECT YOUR MOBILE DEVICE
1. Press the Bluetooth button l on the front of the Main amplifier.
The light on the front of the amplifier slowly blinks blue.
2. On your mobile device, turn on the Bluetooth feature.
NOTE: The Bluetooth menu is usually found in the Settings menu.
3. Select your amplifier from the device list.
NOTE: Look for the name you entered for your amplifier in the Bose Music app. If
you didn’t name your amplifier, the default name appears.
Bose Music Amplier
Once connected, the light on the front of the amplifier glows solid blue then fades
to black. The amplifier’s name appears in the mobile device list.
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BLUETOOTH CONNECTIONS
DISCONNECT A MOBILE DEVICE
Use the Bose Music app to disconnect your mobile device.
TIP: You can also use Bluetooth settings on your mobile device. Disabling the
Bluetooth feature disconnects all other devices.
RECONNECT A MOBILE DEVICE
Press the Bluetooth button l.
The amplifier tries to connect with the most recently-connected devices.
NOTES:
• Make sure the Bluetooth feature is enabled on your mobile device.
• The device must be within 30 ft (9 m) and powered on.
CONNECT AN ADDITIONAL MOBILE DEVICE
You can store up to eight devices in the amplifier device list.
NOTE: You can play audio from only one device at a time.
1. Press and hold l until the light on the front of the amplifier slowly blinks blue.
2. On your mobile device, select your amplifier from the device list.
NOTE: Make sure the Bluetooth feature is enabled on your mobile device.
CLEAR THE AMPLIFIER DEVICE LIST
1. Press and hold l for 10 seconds until the light on the front of the amplifier blinks
blue 3 times.
2. Delete the amplifier from the Bluetooth list on your device.
All devices are cleared. The amplifier is ready to connect (see page 34).
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AMPLIFIER STATUS
BLUETOOTH AND ERROR STATUS
The light on the front of the amplifier shows the Bluetooth connection status of a
mobile device and error alerts.
Bluetooth and error status
LIGHT ACTIVITY SYSTEM STATE
Slowly blinking blue Ready to connect to mobile device
Blinking blue Connecting to mobile device
Solid blue then fades
to black
Connected to mobile device
Blinks blue 3 times Cleared device list
Blinks blue and red for
3 seconds
Bluetooth connection is disabled (Supplemental)
Solid red
Critical error (hardware) – contact Bose customer service
NOTE: The lights on the front and the back of the amplifier glow
solid red simultaneously.
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AMPLIFIER STATUS
The light on the back of the amplifier shows Wi-Fi, power, and system status.
Wi-Fi, power, and system status
WI-FI AND POWER STATUS
Main amplifier
Shows the Wi-Fi and power status of a Main amplifier.
LIGHT ACTIVITY SYSTEM STATE
Slowly blinking white Powering on
Solid white Powered on
Slowly blinking amber Ready for Wi-Fi setup
Solid amber Wi-Fi setup in progress
Slowly blinking white Connecting to Wi-Fi
Solid white Connected to Wi-Fi
Supplemental amplifier
Shows the power status of a Supplemental amplifier.
LIGHT ACTIVITY SYSTEM STATE
Slowly blinking green Powering on
Solid green Powered on
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AMPLIFIER STATUS
UPDATE, RESET, AND ERROR STATUS
Shows the status of software updates, resets, and error alerts.
LIGHT ACTIVITY SYSTEM STATE
Blinking white Installing update
Solid white Update complete
Blinks red 3 times Reset complete
Solid amber Wi-Fi error (Main) – contact Bose customer service
Blinks amber 4 times Non-critical error (network connection error or source error)
Solid red
Critical error (hardware) – contact Bose customer service
NOTE: The lights on the front and the back of the amplifier glow
solid red simultaneously.
AMPLIFIER STATUS
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ADVANCED FEATURES
DISABLE/ENABLE WI-FI CAPABILITY
Insert a thin paperclip into the hole on the back of the amplifier and press and hold for
2 seconds until the light on the back of the amplifier blinks white 3 times.
NOTE: Disabling/enabling Wi-Fi capability also disables/enables the
Bluetooth feature.
OVERLOAD PROTECTION
The amplifier’s overload protection feature automatically reduces maximum
power output to prevent the amplifier from getting too hot. This may occur when the
amplifier plays at high volume for a long duration or if it is installed in a location with
limited ventilation. Full maximum output automatically returns as the amplifier
cools down.
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CONNECT BOSE PRODUCTS
CONNECT A BOSE BASS MODULE
You can connect your Bose Bass Module to the amplifier using a 3.5 mm stereo audio
cable (not provided).
NOTES:
• The 3.5 mm audio cable must be stereo and shielded.
• If you don’t have a 3.5 mm audio cable, visit Bose.com/BM500Bose.com/BM500 or
Bose.com/BM700Bose.com/BM700 to purchase a 15 ft (4.5 m) cable. You can also purchase this part
at your local electronics store.
1. On the amplifier, connect one end of a 3.5 mm audio cable to the BASS port.
2. Connect the other end of the cable to the BASS IN port on the bass module.
Bose Bass Module 500
Bose Bass Module 700
NOTE: For more information about your bass module, refer to your bass module
owner’s guide. Visit:
Bose Bass Module 700: Bose.com/BM700Bose.com/BM700
Bose Bass Module 500: Bose.com/BM500Bose.com/BM500
AMPLIFIER STATUS
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CONNECT BOSE PRODUCTS
CONNECT A BOSE SOUNDLINK BLUETOOTH
SPEAKER OR BOSE HEADPHONES USING
SIMPLESYNC™ TECHNOLOGY
With Bose SimpleSync™ technology, you can connect certain Bose SoundLink
Bluetooth speakers or Bose headphones to the amplifier for a new way to hear your
music and movies.
Benefits
A personal listening experience: Listen to your TV or music without disturbing others
by connecting your Bose headphones to the amplifier. Use independent volume
controls on each product to lower or mute the amplifier while keeping your
headphones as loud as you like.
Another room of audio: Listen to the same song in two dierent rooms at the same
time by connecting your Bose SoundLink Bluetooth speaker to the amplifier.
NOTES:
• SimpleSync™ technology has a Bluetooth range of up to 30 ft (9 m). Walls and
construction materials can aect reception. Depending on your environment, the
range may be higher.
• You can’t stream audio using a Bluetooth source when using
SimpleSync™ technology.
Compatible products
You can connect most Bose SoundLink Bluetooth speakers to the amplifier, as well as
Bose headphones.
Popular compatible products include:
• Bose SoundLink Revolve+ Bluetooth speaker
• Bose SoundLink Mini Bluetooth speaker
• Bose SoundLink Color Bluetooth speaker
• Bose Noise Cancelling Headphones 700
• Bose QuietComfort 35 wireless headphones
New products are added periodically. For a complete list and more information, visit:
worldwide.Bose.com/Support/Groupsworldwide.Bose.com/Support/Groups
AMPLIFIER STATUS
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CONNECT BOSE PRODUCTS
Connect using the Bose Music app
To connect your Bose SoundLink Bluetooth speaker or Bose headphones to the
amplifier, use the Bose Music app. For more information, visit:
worldwide.Bose.com/Support/Groupsworldwide.Bose.com/Support/Groups
NOTES:
• Make sure that the product you’re connecting is powered on, within 30 ft (9 m) of
the amplifier, and ready to connect to another device. For more information, refer to
your product owner’s guide.
• You can connect only one product at a time to the amplifier.
RECONNECT A BOSE SOUNDLINK BLUETOOTH SPEAKER
OR BOSE HEADPHONES
Power on your Bose SoundLink Bluetooth speaker or Bose headphones.
Your speaker or headphones try to connect to the most recently-connected Bluetooth
device, including the amplifier.
NOTES:
• The amplifier must be within range (30 ft or 9 m) and powered on.
• If your speaker doesn’t connect, see “Amplifier doesn’t reconnect to a
previously-connected Bose SoundLink Bluetooth speaker” on page 50.
• If your headphones don’t connect, see “Amplifier doesn’t reconnect to
previously-connected Bose headphones” on page 50.
CARE AND MAINTENANCE
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CARE AND MAINTENANCE
UPDATE THE AMPLIFIER
Main amplifier
The Main amplifier updates automatically when connected to the Bose Music app and
your Wi-Fi network.
Supplemental amplifier
1. Flip switch A up to set it to a Main amplifier.
2. Add the amplifier to the Bose Music app (see page 24).
The amplifier updates automatically. When the update is complete, the light on the
back of the amplifier glows solid white.
3. Flip switch A down to revert it back to a Supplemental amplifier.
CLEAN THE AMPLIFIER
Clean the surface of the amplifier with a soft, dry cloth.
Use a brush attachment on a vacuum cleaner to clean the hard-to-reach areas.
CAUTIONS:
• Disconnect the power cord from the AC (mains) power outlet before cleaning.
• Do NOT use any sprays near the amplifier. Do not use any solvents, chemicals, or
cleaning solutions containing alcohol, ammonia or abrasives.
• Do NOT allow liquids to spill into any openings.
REPLACEMENT PARTS AND ACCESSORIES
Replacement parts and accessories can be ordered through Bose customer service.
Visit: support.Bose.com/BMAsupport.Bose.com/BMA
LIMITED WARRANTY
The amplifier is covered by a limited warranty. Visit our website at
worldwide.Bose.com/Warrantyworldwide.Bose.com/Warranty for details of the limited warranty.
To register your product, visit worldwide.Bose.com/ProductRegistrationworldwide.Bose.com/ProductRegistration for
instructions. Failure to register will not aect your limited warranty rights.
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TECHNICAL INFORMATION
SPECIFICATION VALUE
Dimensions
(approximate)
8
11
⁄44" wide x 8
11
⁄44" deep x 2
99
⁄1010" high (21 cm x 21 cm x 7.3 cm)
Weight
(amplifier only)
4.8 lbs (2186g)
Power rating
100-240V 50/60 Hz, 240W
Input sensitivity RCA inputs: 2Vrms
Signal to Noise
ratio (S/N)
>100 dB
Output power
(continuous
average)
125W / channel minimum into 8 ohms, from 20 Hz to 20 kHz, with no
more than 0.1% THD
Temperature
range
32° F to 95° F (0° C to 35° C)
NOTE: Depending on your environment, it’s possible to operate outside
of the recommended temperature range without aecting performance.
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TROUBLESHOOTING
TRY THESE SOLUTIONS FIRST
If you experience problems with the amplifier:
• Make sure the amplifier is connected to a live AC (mains) outlet.
• Secure all cables and speaker wires.
• Check the state of the amplifier (see page 36).
• Move the amplifier and mobile device away from possible interference (wireless
routers, cordless phones, televisions, microwaves, etc.).
• Move the amplifier within the recommended range of your wireless router or
mobile device for proper operation.
• Refer to your speaker owner’s guide.
OTHER SOLUTIONS
If you could not resolve your issue, see the table below to identify symptoms and
solutions to common problems. If you’re unable to resolve your issue, contact
Bose customer service.
Visit: worldwide.Bose.com/contactworldwide.Bose.com/contact
SYMPTOM SOLUTION
Can’t complete
network setup
Make sure the amplifier is set to Main (see page 27).
Select correct network name and enter password.
Connect your mobile device and amplifier to the same Wi-Fi network.
Enable Wi-Fi on the mobile device you’re using for setup .
Change the default browser on your mobile device.
Close other open applications.
Restart your mobile device and your router.
Place the amplifier within range of the router.
Reset the amplifier (see page 51).
If your router supports both 2.4GHz and 5GHz bands, make sure both
the mobile device and amplifier are connecting to the same band.
Uninstall the Bose Music app, reset the amplifier (see page 51), and
restart setup.
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TROUBLESHOOTING
SYMPTOM SOLUTION
Can’t connect
to network
Make sure the amplifier is set to Main (see page 27).
If the amplifier set to Main and a device is connected to an Ethernet
port, make sure it’s another Bose Music Amplifier.
In the Bose Music app, select the correct network name, and enter the
network password (case-sensitive).
Make sure the amplifier and your mobile device are connected to the
same Wi-Fi network.
Enable Wi-Fi on the mobile device you’re using for setup.
Close other open applications on your mobile device.
If multiple amplifiers are connected by cable, reduce the
number connected.
Connect the Main amplifier to the network using an Ethernet cable
(see page 24).
If connected to your network using an Ethernet cable:
• Check the cable (see page 24).
• Use a dierent Ethernet cable (see page 24).
If your network information has changed, see page 21.
Restart your mobile device and router.
If your router supports both 2.4GHz and 5GHz bands, make sure both
the device (mobile or computer) and amplifier are connecting to the
same band.
NOTE: Give each band a unique name to make sure you’re connecting
to the correct band.
Reset the router.
If connecting to a dierent network and the app doesn’t prompt you
for setup, go to the main screen and add the amplifier.
Bose Music app
doesn’t work on
mobile device
Make sure your mobile device is compatible with the Bose Music app
and meets minimum system requirements. For more information, refer
to the app store on your mobile device.
Uninstall the Bose Music app on your mobile device then reinstall the
app (see page 20).
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TROUBLESHOOTING
SYMPTOM SOLUTION
Poor or
distorted audio
If two pairs of speakers are connected, use the same speaker model.
Make sure the speakers are compatible: one pair of speakers requires
4 ohm minimum each, and two pairs of speakers require 8 ohm
minimum each.
Use the Bose Music app to group the Main amplifiers (see page 21).
If the amplifier is connected to an external source using an RCA audio
cable or optical cable, make sure it’s set up using the Bose Music app
(see page 20).
If connected using an Ethernet cable or RCA audio cable:
• Reduce the number of amplifiers connected.
• Check the Ethernet cable (see page 24) or RCA audio cable (see
page 25).
• Use a dierent Ethernet cable (see page 24) or RCA audio cable
(see page 25).
Intermittent or
no audio
If the amplifier is set to Main and a device is connected to the Ethernet
port, make sure it’s another Bose Music Amplifier.
Firmly insert the speaker wires into the terminals on the back of the
speakers and on the amplifier’s connector panel. Confirm that no
individual wires are touching across terminals (see page 16).
Make sure the external music source is firmly connected to either the
analog (red and white) or optical inputs.
Stop other audio or video streaming applications.
Unmute or increase the volume on the amplifier and mobile device.
Unplug the power cord; reconnect after 1 minute.
Restart your mobile device and router.
Make sure volume isn’t muted or too low.
Interference
(corrupted audio)
Keep the amplifier away from metal objects, other audio/video
components, and direct heat sources (see page 14).
Change the router channel or band. Refer to your router owner’s guide.
Connect the Main amplifier using an Ethernet cable (see page 24).
Speakers don’t play
Make sure the speaker wires are connected properly (see page 16).
Disconnect AC power from the amplifier for 3 minutes. Reconnect
power to the amplifier (see page 19).
Play content using the Bose Music app.
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TROUBLESHOOTING
SYMPTOM SOLUTION
One speaker
doesn’t play
Make sure the speaker wires are in good condition.
Disconnect the wire from the working speaker and attach it to the
non-working speaker. If the speaker doesn’t play, the problem may be
with the speaker and not the speaker wire.
Disconnect the speaker wire from the terminal block connector.
Connect it to the other terminal block connector. If the speaker plays,
the problem may be the other speaker wire. Replace the speaker wire.
If the speaker doesn’t play, the problem may be in that channel of
the amplifier.
Right and left
stereo channels are
heard on the
wrong speakers
Make sure the speaker wires are connected properly (see page 16).
Make sure that the red and white analog cables are properly
connected, red to red and white to white on the amplifier and on the
external music source.
Bass or treble
is weak
Make sure the speaker wires are connected properly (see page 16).
If they aren’t, they could be playing out of phase.
Make sure the speakers are compatible: one pair of speakers requires
4 ohm minimum each, and two pairs of speakers require 8 ohm
minimum each.
Make sure the amplifier software is up-to-date in the Bose Music app.
Adjust the bass or treble level using the Bose Music app.
Can’t connect with
your mobile device
using a Bluetooth
connection
Make sure the amplifier is set to Main (see page 27).
Can’t play
Bluetooth audio
On your mobile device, turn the Bluetooth feature o and then on.
Delete the amplifier from the Bluetooth list. Connect again
(see page 34).
Make sure you’re using a compatible Bluetooth mobile device.
Make sure you’re within 30 ft of the amplifier, and there are no large
metal obstructions in the way.
Delete the amplifier from your mobile device Bluetooth list. Connect
again (see page 34).
Set up the Bose Music app first and perform all updates.
Connect a dierent mobile device (see page 35).
Clear the amplifier’s device list (see page 35). Connect again (see
page 34).
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TROUBLESHOOTING
SYMPTOM SOLUTION
Can’t stream audio
using AirPlay
Make sure the amplifier is powered on and in range (see page 19).
Make sure your Apple device and the amplifier are connected to the
same Wi-Fi network.
Update your Apple device.
Make sure the amplifier is up-to-date (see page 43).
If you can’t find the AirPlay icon A in the music app you’re streaming
from, stream audio from the Control Center.
For additional support, visit: https://www.apple.com/airplayhttps://www.apple.com/airplay
Google Assistant
doesn’t respond
Make sure you have a Google Assistant-enabled device connected to
your network.
Make sure Google Assistant has been set up using the Bose Music app
(see page 30).
NOTE: The amplifier must be set up and connected to your Wi-Fi
network using the Bose Music app.
Connect your mobile device to Wi-Fi.
Make sure you’re in a country where Google Assistant is available.
Make sure you’re using the most up-to-date version of the Google
Assistant app.
Make sure your mobile device is compatible.
Make sure you say the name you assigned in the Bose Music app.
Make sure you use the same audio service account on the Bose Music
app and Google Assistant app.
For additional support, visit: https://support.google.com/assistanthttps://support.google.com/assistant
Alexa doesn’t
respond
Make sure you’re speaking to a separate device with Alexa Built-In
connected to your network.
Make sure Alexa has been set up using the Bose Music app
(see page 30).
NOTE: The amplifier must be set up and connected to your Wi-Fi
network using the Bose Music app.
Connect your mobile device to Wi-Fi.
Make sure you’re in a country where Amazon Alexa is available.
Make sure you’re using the most up-to-date version of the Alexa app.
Make sure your mobile device is compatible.
Make sure you say the name you assigned in the Bose Music app.
For additional support, visit: https://www.amazon.com/usealexahttps://www.amazon.com/usealexa
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TROUBLESHOOTING
SYMPTOM SOLUTION
Amplifier doesn’t
connect to a
Bose SoundLink
Bluetooth speaker
or Bose
headphones
Make sure that your speaker or headphones are powered on, within
30 ft (9 m) of the amplifier, and ready to connect to another device.
For more information, refer to your product owner’s guide.
Disconnect your speaker or headphones from other
connected devices.
Amplifier doesn’t
reconnect to a
previously-
connected Bose
SoundLink
Bluetooth speaker
On your speaker, use the product controls to cycle through the
product device list until you hear the name for the amplifier. For
product-specific instructions, refer to your speaker owner’s guide.
Disconnect your speaker or headphones from other
connected devices.
Amplifier doesn’t
reconnect to
previously-
connected Bose
headphones
Connect using the Bose Music app. You can access this option from the
Settings menu.
Disconnect your speaker or headphones from other
connected devices.
Delayed audio from
a connected
Bose SoundLink
Bluetooth speaker
or Bose
headphones
Not all Bose SoundLink Bluetooth speakers or headphones can play
audio in perfect sync when connected to the amplifier. To check if your
product is compatible, visit: worldwide.Bose.com/Support/Groups
Install any available software updates for your speaker or headphones.
To check for updates, open the appropriate Bose app for your product
on your mobile device or visit btu.Bose.combtu.Bose.com on your computer.
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TROUBLESHOOTING
RESET THE AMPLIFIER
Press the RESET button to reset the amplifier.
NOTE: Resetting the amplifier doesn’t aect ADVANCED SETTING configurations,
SPEAKER SETTING configuration, or network settings.
RESTORE THE AMPLIFIER TO FACTORY DEFAULT
Restoring the amplifier clears all source, volume, and network settings from the
amplifier and returns it to original factory settings.
Insert a thin paperclip into the hole in the back of the amplifier and press and hold for
10 seconds until the light on the back of the amplifier blinks red 3 times.
When the restore is complete, the light on the back of the amplifier slowly
blinks amber.
NOTE: Restoring the amplifier doesn’t aect ADVANCED SETTING configurations or
SPEAKER SETTING configuration.
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APPENDIX A: RACK MOUNTING
You can mount the amplifier on a rack (left or right side) using the mounting bracket,
rack bracket, and hardware provided.
CAUTIONS:
• Only use mounting bracket, rack bracket, and hardware provided with
the amplifier.
• When mounting multiple amplifiers on a rack, use a separate rack mount for
each amplifier.
• Do NOT place or install the bracket or amplifier near any heat sources, such as
fireplaces, radiators, heat registers, or other apparatus ( including amplifiers) that
produce heat.
CONNECT THE BRACKETS
1. With the rack mount arrow visible and pointing to the front of the rack, align the
holes on the mounting bracket with the holes on the rack bracket.
RACK MOUNT
FRONT
2. Insert the connecting screws through the mounting bracket and rack bracket.
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APPENDIX A: RACK MOUNTING
3. Using a small, Phillips-head screwdriver, turn the screws clockwise to secure
the screws.
ATTACH TO THE RACK
1. Align the holes on the rack bracket to the rack.
2. Insert the rack screws through the rack bracket and rack.
3. Turn the screws clockwise to secure the screws.
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APPENDIX A: RACK MOUNTING
4. Repeat steps 1-3 to attach the other side of the rack bracket of the rack.
NOTE: You can also configure the assembly to attach the right side of the rack.
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APPENDIX A: RACK MOUNTING
PLACE THE AMPLIFIER
1. Align the four openings on the bottom of the amplifier with the four tabs on the
mounting bracket.
2. Gently slide the amplifier back onto the tabs until the amplifier clicks into place.
NOTE: To remove the amplifier from the mounting bracket, slide the amplifier forward
to release from the tabs.
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APPENDIX B: WALL MOUNTING
HARDWARE SPECIFICATIONS
You can mount the amplifier on a wall with the mounting bracket and hardware
(not provided). When choosing the hardware, make sure you use hardware that is
appropriate for the intended mounting surface.
ITEM WOOD WALLBOARD MASONRY
Wall thickness
11
⁄22" (12.8 mm)
or thicker
33
⁄88" (9.5 mm)
or thicker
4" (101.6 mm)
or thicker
Drill bit
33
⁄3232" (2.4 mm)
11
⁄44" (6.4 mm)
11
⁄44" (6.4 mm)
Phillips-head
wood screws
(4, not included)
#10 x 1
11
⁄44"
(M5 x 32 mm)
Not used Not used
Anchors
(4, not included)
Not used
#10 (M5)
wallboard anchors
NOTE: Requires a
minimum of a
10 lb (4536g) rating.
#10 (M6)
masonry anchors
NOTE: Requires a
minimum of a
10 lb (4536g) rating.
WARNING: Do NOT mount on surfaces that are not sturdy enough, or that have
hazards concealed behind them, such as electrical wiring or plumbing. If
you’re not sure about installing the bracket, contact a qualified
professional installer. Make sure the bracket is installed according to local
building codes.
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APPENDIX B: WALL MOUNTING
ATTACH THE MOUNTING BRACKET
CAUTIONS:
• Only use the mounting bracket provided with the amplifier.
• Do NOT mount the bracket on the ceiling.
• Do NOT place or install the bracket or amplifier near any heat sources, such as
fireplaces, radiators, heat registers or other apparatus ( including amplifiers) that
produce heat.
1. With wall mount arrow visible and pointing up, position the mounting bracket on
the wall.
RACK MOUNT
FRONT
WALL MOUNT
UP
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APPENDIX B: WALL MOUNTING
2. Mark the four mounting hole locations on the wall through the mounting
bracket holes.
RACK MOUNT
FRONT
WALL MOUNT
UP
3. Remove the mounting bracket.
4. Drill four holes in the wall.
• If mounting on wood, drill
33
⁄3232" holes, then continue with step 5.
• If mounting on wallboard or masonry, refer to the instructions provided with the
anchors for the proper hole size and instructions for mounting the bracket to
the wall.
5. Align the mounting bracket to the drilled holes.
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APPENDIX B: WALL MOUNTING
6. Insert four screws (not provided) through the mounting bracket.
7. Using a screwdriver, tighten the screws clockwise to secure the screws.
RACK MOUNT
FRONT
WALL MOUNT
UP
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APPENDIX B: WALL MOUNTING
ATTACH THE AMPLIFIER
1. Align the four openings on the back of the amplifier with the four tabs on the
mounting bracket.
Bottom of amplifier Mounting bracket
RACK MOUNT
FRONT
WALL MOUNT
UP
2. Gently slide the amplifier down onto the tabs until the amplifier clicks into place.
NOTE: To remove the amplifier from the mounting bracket, slide the amplifier up to
release from the tabs.
TECHNICAL INFORMATION
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APPENDIX C: CONNECT EXTERNAL SOURCE
You can connect the Main amplifier to your external analog or digital source using an
RCA audio cable for an analog source or an optical cable for a digital source (both
cables not provided).
NOTE: To play audio from an external source, the amplifier must be set up using the
Bose Music app (see page 20).
USING AN RCA AUDIO CABLE
1. On the external source, connect the RCA audio cable’s white connector to the
white LINE OUT port and the red connector to the red LINE OUT port.
2. On the Main amplifier, connect the other white connector to the white LINE IN port
and the red connector to the LINE IN port.
USING AN OPTICAL CABLE
1. Remove the protective cap from both ends of the optical cable.
CAUTION: Inserting the plug with the cap attached can damage the plug and/or
the port.
2. Insert one end of the optical cable into your source’s OPTICAL OUT port.
CAUTION: Inserting the plug with the wrong orientation can damage the plug
and/or the port.
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APPENDIX C: CONNECT EXTERNAL SOURCE
3. On the Main amplifier, carefully insert the plug into the OPTICAL IN port.
NOTE: The port has a hinged door that swings inward when inserting the plug.
4. Firmly push the plug into the port until you hear or feel a click.
©2022 Bose Corporation
100 The Mountain Road, Framingham, MA 01701-9168 USA AM872838-0010 Rev. 00
©2022 Bose Corporation
100 The Mountain Road, Framingham, MA 01701-9168 USA AM872838-0010 Rev. 00
