Quick reference guide
Page 1
... use instructions, and important safety information, refer to the supplied Bose A20 Aviation Headset Owner's Guide. When pairing is in order to put the headset into "discoverable" mode. 3. If asked for 5 seconds in "discoverable" mode and ready to be paired to a cell phone. Bose® A20™ Aviation Headset QUICK REFERENCE GUIDE Bluetooth® control module Conventional control module...
... use instructions, and important safety information, refer to the supplied Bose A20 Aviation Headset Owner's Guide. When pairing is in order to put the headset into "discoverable" mode. 3. If asked for 5 seconds in "discoverable" mode and ready to be paired to a cell phone. Bose® A20™ Aviation Headset QUICK REFERENCE GUIDE Bluetooth® control module Conventional control module...
Quick reference guide
Page 2
.... ©2010 Bose Corporation, The Mountain, Framingham, MA 01701-9168 USA AM325455 Rev.02 To (Auto Off enabled) disable Auto Off, set the switch to release. The Default: ON headset will not turn off until you press and hold the power button for stereo if your aircraft has a stereo intercom. selection Default...
.... ©2010 Bose Corporation, The Mountain, Framingham, MA 01701-9168 USA AM325455 Rev.02 To (Auto Off enabled) disable Auto Off, set the switch to release. The Default: ON headset will not turn off until you press and hold the power button for stereo if your aircraft has a stereo intercom. selection Default...
Owner's guide
Page 2
... 55°C) only. Dispose of 5°F to 131°F (-15°C to third parties. • During flight operations, do not use of the Bose® A20™ Aviation Headset. • The headset is the maximum legally permissible level for a Class B digital device, pursuant to the following measures: - Important Safety Instructions • Please read these instructions...
... 55°C) only. Dispose of 5°F to 131°F (-15°C to third parties. • During flight operations, do not use of the Bose® A20™ Aviation Headset. • The headset is the maximum legally permissible level for a Class B digital device, pursuant to the following measures: - Important Safety Instructions • Please read these instructions...
Owner's guide
Page 3
... 9 The operation switches 9 Inserting and replacing the batteries 10 Connecting the headset to the aircraft 11 Using the 6-pin plug 11 Using the dual general aviation plugs 12 Using other plug types 12 USING THE HEADSET 13 Wearing and adjusting the headset 13 Conditions related to fit 13 Microphone placement 13 Clothing clips 14...
... 9 The operation switches 9 Inserting and replacing the batteries 10 Connecting the headset to the aircraft 11 Using the 6-pin plug 11 Using the dual general aviation plugs 12 Using other plug types 12 USING THE HEADSET 13 Wearing and adjusting the headset 13 Conditions related to fit 13 Microphone placement 13 Clothing clips 14...
Owner's guide
Page 4
... 6, 14 Tab 5, 13 Tab 4, 12 Tab 3, 11 Tab2, 10 English CONTENTS HEADSET CARE AND MAINTENANCE 23 Instructions for continued airworthiness 23 Cleaning the headset 23 General cleaning 23 Headset earcup openings 23 Microphone windscreen 24 Earcup inner screen 24 Headband cushion 24 Replacing parts 24... making the connections 33 TECHNICAL INFORMATION 34 SERVICE AND WARRANTY INFORMATION 36 Locating the headset serial number 36 Warranty period 36 Limited warranty service 36 To return your headset to Bose for repair 36 Contact information 37 Ordering parts and accessories 37 iii
... 6, 14 Tab 5, 13 Tab 4, 12 Tab 3, 11 Tab2, 10 English CONTENTS HEADSET CARE AND MAINTENANCE 23 Instructions for continued airworthiness 23 Cleaning the headset 23 General cleaning 23 Headset earcup openings 23 Microphone windscreen 24 Earcup inner screen 24 Headband cushion 24 Replacing parts 24... making the connections 33 TECHNICAL INFORMATION 34 SERVICE AND WARRANTY INFORMATION 36 Locating the headset serial number 36 Warranty period 36 Limited warranty service 36 To return your headset to Bose for repair 36 Contact information 37 Ordering parts and accessories 37 iii
Owner's guide
Page 5
... with any battery source other than the Bose A20 Aviation Headset control module. 1 English Tab 2, 10 Tab 3, 11 Tab 4, 12 Tab 5, 13 Tab 6, 14 Tab 7, 15 Tab 8, 16 ADVISORIES Operational advisory The Bose® A20™ Aviation Headset incorporates Acoustic Noise Cancelling® technology. If your headset is aircraft powered, connect the headset to the aircraft power sources only as...
... with any battery source other than the Bose A20 Aviation Headset control module. 1 English Tab 2, 10 Tab 3, 11 Tab 4, 12 Tab 5, 13 Tab 6, 14 Tab 7, 15 Tab 8, 16 ADVISORIES Operational advisory The Bose® A20™ Aviation Headset incorporates Acoustic Noise Cancelling® technology. If your headset is aircraft powered, connect the headset to the aircraft power sources only as...
Owner's guide
Page 6
... typical aircraft sounds (such as stall warnings or gear up the aircraft communications system volume. This control affects the strength of headset use with your ability to hear informational sounds and warning alarms, such as engines, propellers, warning alarms, and other sound...turned off . As pilot in -flight entertainment, or a portable audio source through a Bose A20 Aviation Headset, be sure you can hear and recognize these sounds when using the Bose® A20™ Aviation Headset while operating any aircraft. Avoid setting the volume controls at levels high enough to in...
... typical aircraft sounds (such as stall warnings or gear up the aircraft communications system volume. This control affects the strength of headset use with your ability to hear informational sounds and warning alarms, such as engines, propellers, warning alarms, and other sound...turned off . As pilot in -flight entertainment, or a portable audio source through a Bose A20 Aviation Headset, be sure you can hear and recognize these sounds when using the Bose® A20™ Aviation Headset while operating any aircraft. Avoid setting the volume controls at levels high enough to in...
Owner's guide
Page 7
... Tab 2, 10 Tab 3, 11 Tab 4, 12 Tab 5, 13 Tab 6, 14 Tab 7, 15 Tab 8, 16 ADVISORIES Headset earcup requirements Proper headset operation requires that the headset TriPort® openings on page 23. Earcup inner screen Do not attempt to reduce noise. If screen replacement seems necessary, ...contact Bose® Technical Support. Remove the batteries before storing the headset for extended periods. 3 The headset TriPort openings are kept free of each earcup and include two holes and a screen. ...
... Tab 2, 10 Tab 3, 11 Tab 4, 12 Tab 5, 13 Tab 6, 14 Tab 7, 15 Tab 8, 16 ADVISORIES Headset earcup requirements Proper headset operation requires that the headset TriPort® openings on page 23. Earcup inner screen Do not attempt to reduce noise. If screen replacement seems necessary, ...contact Bose® Technical Support. Remove the batteries before storing the headset for extended periods. 3 The headset TriPort openings are kept free of each earcup and include two holes and a screen. ...
Owner's guide
Page 8
...• Control module with battery • Battery-only powered 4 What's included Each Bose A20 Aviation Headset is available with a control module, cable, and carrying case. Your headset falls into one of two general categories: • Dual-powered: Aircraft powered with ... end-plug configurations for the headset. Plus, it offers auxiliary audio input and is supplied with Bluetooth® wireless technology. The Bose A20 Aviation Headset is our most advanced aviation headset yet. The type of a Bose® A20™ Aviation Headset. It delivers significantly increased noise...
...• Control module with battery • Battery-only powered 4 What's included Each Bose A20 Aviation Headset is available with a control module, cable, and carrying case. Your headset falls into one of two general categories: • Dual-powered: Aircraft powered with ... end-plug configurations for the headset. Plus, it offers auxiliary audio input and is supplied with Bluetooth® wireless technology. The Bose A20 Aviation Headset is our most advanced aviation headset yet. The type of a Bose® A20™ Aviation Headset. It delivers significantly increased noise...
Owner's guide
Page 9
See "Power and cable variations" on model of headset. English Tab 2, 10 Tab 3, 11 Tab 4, 12 Tab 5, 13 Tab 6, 14 Tab 7, 15 Tab 8, 16 INTRODUCTION What's in the carton Headset assembly: Accessories: Headphones Carrying case Clothing clip Control module See "Control module variations" on page 6 for options. 2 AA Alkaline batteries Second clothing clip 3.5 mm adapter cable Cable connector (varies) Note: Cable connector types will vary based on page 7. 5
See "Power and cable variations" on model of headset. English Tab 2, 10 Tab 3, 11 Tab 4, 12 Tab 5, 13 Tab 6, 14 Tab 7, 15 Tab 8, 16 INTRODUCTION What's in the carton Headset assembly: Accessories: Headphones Carrying case Clothing clip Control module See "Control module variations" on page 6 for options. 2 AA Alkaline batteries Second clothing clip 3.5 mm adapter cable Cable connector (varies) Note: Cable connector types will vary based on page 7. 5
Owner's guide
Page 11
English Tab 2, 10 Tab 3, 11 Tab 4, 12 Tab 5, 13 Tab 6, 14 Tab 7, 15 Tab 8, 16 INTRODUCTION Power and cable variations The Bose® A20™ Aviation Headset is available for purchase in different standard aircraft connector options to suit pilot needs, including: • Dual G/A • 6-pin install* • 5-pin XLR • U174 * An adapter is available from Bose to convert a 6-pin connector to a dual G/A plug for additional connection flexibility. Other configurations require the purchase of a cable assembly. 7
English Tab 2, 10 Tab 3, 11 Tab 4, 12 Tab 5, 13 Tab 6, 14 Tab 7, 15 Tab 8, 16 INTRODUCTION Power and cable variations The Bose® A20™ Aviation Headset is available for purchase in different standard aircraft connector options to suit pilot needs, including: • Dual G/A • 6-pin install* • 5-pin XLR • U174 * An adapter is available from Bose to convert a 6-pin connector to a dual G/A plug for additional connection flexibility. Other configurations require the purchase of a cable assembly. 7
Owner's guide
Page 12
...earcup. 4. Attaching the microphone assembly Choose the earcup (L or R) to try the headset and fully test its operation before flight. 8 Insert the screws, then align and tighten them. Note: The headset will not work without the access cover installed. CAUTION: Be sure to receive the ...clean and free of the earcup where you can attach it reaches the stop. Tighten the screws to either earcup. If your headset is shipped with the microphone assembly (boom microphone and cable) attached to the left Access cover Connector pins Microphone assembly Connector pins...
...earcup. 4. Attaching the microphone assembly Choose the earcup (L or R) to try the headset and fully test its operation before flight. 8 Insert the screws, then align and tighten them. Note: The headset will not work without the access cover installed. CAUTION: Be sure to receive the ...clean and free of the earcup where you can attach it reaches the stop. Tighten the screws to either earcup. If your headset is shipped with the microphone assembly (boom microphone and cable) attached to the left Access cover Connector pins Microphone assembly Connector pins...
Owner's guide
Page 13
..., you can observe and change the operation switches 1. English Tab 2, 10 Tab 3, 11 Tab 4, 12 Tab 5, 13 Tab 6, 14 Tab 7, 15 Tab 8, 16 PREPARING THE HEADSET FOR USE The battery compartment The Bose® A20™ Aviation Headset is shipped with factory-set operation defaults.
..., you can observe and change the operation switches 1. English Tab 2, 10 Tab 3, 11 Tab 4, 12 Tab 5, 13 Tab 6, 14 Tab 7, 15 Tab 8, 16 PREPARING THE HEADSET FOR USE The battery compartment The Bose® A20™ Aviation Headset is shipped with factory-set operation defaults.
Owner's guide
Page 14
...both ears). Insert the two supplied alkaline AA batteries into the control module, observing proper polarity. 4. To change a switch position, use the headset when unplugged from the control module. 3. Auto Off function Options ON, OFF Default: ON 2. With the switch in to an intercom, it... Forcing an improper connection will not turn off varies and can range between 3 to the control module. Note: Rechargeable batteries will shut off headset power. 2. Switch 1. To insert or replace the batteries 1. Set at the factory to gently move the switch. Turn off even when there...
...both ears). Insert the two supplied alkaline AA batteries into the control module, observing proper polarity. 4. To change a switch position, use the headset when unplugged from the control module. 3. Auto Off function Options ON, OFF Default: ON 2. With the switch in to an intercom, it... Forcing an improper connection will not turn off varies and can range between 3 to the control module. Note: Rechargeable batteries will shut off headset power. 2. Switch 1. To insert or replace the batteries 1. Set at the factory to gently move the switch. Turn off even when there...
Owner's guide
Page 15
... 2, 10 Tab 3, 11 Tab 4, 12 Tab 5, 13 Tab 6, 14 Tab 7, 15 Tab 8, 16 PREPARING THE HEADSET FOR USE Connecting the headset to the aircraft The Bose® A20™ Aviation Headset can be installed and mounted to an aircraft panel. Using the 6-pin plug A single 6-pin plug inserted into the connector... jack. If your headset is available from the connector. Align the 6-pin plug to ...
... 2, 10 Tab 3, 11 Tab 4, 12 Tab 5, 13 Tab 6, 14 Tab 7, 15 Tab 8, 16 PREPARING THE HEADSET FOR USE Connecting the headset to the aircraft The Bose® A20™ Aviation Headset can be installed and mounted to an aircraft panel. Using the 6-pin plug A single 6-pin plug inserted into the connector... jack. If your headset is available from the connector. Align the 6-pin plug to ...
Owner's guide
Page 16
Refer to various aircraft audio jacks. It will only fit into the appropriate jack on page 7. 12 Microphone Intercom/Audio Using other plug types The Bose® A20™ Aviation Headset is shorter, thinner, and has a slightly different shape than the intercom plug. These single-plug connectors should be inserted into one of the jacks...
Refer to various aircraft audio jacks. It will only fit into the appropriate jack on page 7. 12 Microphone Intercom/Audio Using other plug types The Bose® A20™ Aviation Headset is shorter, thinner, and has a slightly different shape than the intercom plug. These single-plug connectors should be inserted into one of the jacks...
Owner's guide
Page 17
...is important both for comfort and optimal noise reduction performance. During a long flight, you may experience a brief reduction in a noisy environment. With the headset on your head is important for a momentary pressure change. English Tab 2, 10 Tab 3, 11 Tab 4, 12 Tab 5, 13 Tab 6, 14 Tab...brief losses of difficulty" on removing blockages. If the problem continues when the sound level returns to orient the headset properly. If the problem persists, contact Bose® Technical Support for instructions on page 27. You should sound and feel a slight pressure point, which ...
...is important both for comfort and optimal noise reduction performance. During a long flight, you may experience a brief reduction in a noisy environment. With the headset on your head is important for a momentary pressure change. English Tab 2, 10 Tab 3, 11 Tab 4, 12 Tab 5, 13 Tab 6, 14 Tab...brief losses of difficulty" on removing blockages. If the problem continues when the sound level returns to orient the headset properly. If the problem persists, contact Bose® Technical Support for instructions on page 27. You should sound and feel a slight pressure point, which ...
Owner's guide
Page 18
... facing in toward your lips. Make sure the talk side of your lips. Grasp the boom with your lips. Use the clips to attach the headset cable to release and reposition clip along the cable 14 Pull the microphone in . Tab 8, 16 Tab 7, 15 Tab 6, 14 Tab 5, 13 Tab 4, 12 Tab...
... facing in toward your lips. Make sure the talk side of your lips. Grasp the boom with your lips. Use the clips to attach the headset cable to release and reposition clip along the cable 14 Pull the microphone in . Tab 8, 16 Tab 7, 15 Tab 6, 14 Tab 5, 13 Tab 4, 12 Tab...
Owner's guide
Page 19
... module; English Tab 2, 10 Tab 3, 11 Tab 4, 12 Tab 5, 13 Tab 6, 14 Tab 7, 15 Tab 8, 16 USING THE HEADSET Using the control module Use the control module to turn on Acoustic Noise Cancelling noise reduction. • Press and hold the power button to ...control the headset functions. Bluetooth control module Conventional control module Bluetooth indicator Bluetooth function button Multifunction switch: Top Intercom prioritized Middle Intercom mixed Bottom Intercom...
... module; English Tab 2, 10 Tab 3, 11 Tab 4, 12 Tab 5, 13 Tab 6, 14 Tab 7, 15 Tab 8, 16 USING THE HEADSET Using the control module Use the control module to turn on Acoustic Noise Cancelling noise reduction. • Press and hold the power button to ...control the headset functions. Bluetooth control module Conventional control module Bluetooth indicator Bluetooth function button Multifunction switch: Top Intercom prioritized Middle Intercom mixed Bottom Intercom...
Owner's guide
Page 20
...remaining) None Power OFF or batteries depleted * Bluetooth wireless technology is disabled to adjust volume of the corresponding earcup. Even at the headset control module. Power indicator New alkaline AA batteries will be set to dim the power and Bluetooth® wireless technology indicators. The power.... Exposure to indicate the power status, as follows: Indicator color Green Green Amber Red Off Power source Type of power for the headset. Battery life varies with the ambient noise level of the aircraft, temperature, ear cushion condition, use of the Bluetooth feature, and...
...remaining) None Power OFF or batteries depleted * Bluetooth wireless technology is disabled to adjust volume of the corresponding earcup. Even at the headset control module. Power indicator New alkaline AA batteries will be set to dim the power and Bluetooth® wireless technology indicators. The power.... Exposure to indicate the power status, as follows: Indicator color Green Green Amber Red Off Power source Type of power for the headset. Battery life varies with the ambient noise level of the aircraft, temperature, ear cushion condition, use of the Bluetooth feature, and...