User Guide
Table Of Contents
- Our commitment to you
- About your Bose A20 Aviation Headset
- What’s included
- What’s in the carton
- The microphone assembly
- The battery compartment
- Connecting the headset to the aircraft
- Wearing and adjusting the headset
- Using the control module
- Primary and Secondary audio sources
- Instructions for continued airworthiness
- Cleaning the headset
- Replacing parts
- Troubleshooting
- Mounting the aircraft panel connector
- Locating the headset serial number
- Limited warranty service
- Contact information
Introduction
English - 9
Power and cable variations
The Bose
®
A20
®
Aviation Headset is available for purchase in different standard
aircraft connector options, including:
Battery powered options
Operate with battery power only
Dual powered options
Operate with either aircraft or battery power
No battery needed when connected to aircraft power
Dual G/A 6-pin*
U174 5-pin XLR
U384 8-pin
* An adapter is available from Bose to convert a 6-pin connector to a dual G/A or
U174 plug for additional connection flexibility.
Note: Many different combinations of control module, microphone, connector
and cable types are available. Contact Bose Technical Support for more
i nformation.