TROUBLESHOOTING

 

 

 

 

Problem

What to do

 

 

Low rumbling

• Adjust the earcup fit to create a better seal on your head. The

sound with the

low-force design of the headset makes it sensitive to items that

headset turned on

interfere with the seal around your ear. Make sure your ears are

in a quiet

completely inside the ear cushions, and that a hat or eyeglasses

environment.

with thick temples do not interfere with the seal.

 

 

• Check ports at the outside surface of each earcup to ensure that

 

they are not blocked. If dust or dirt is present, carefully remove

 

the debris using tweezers. Do not blow out or vacuum debris.

 

• Inspect the seal between the ear cushion skirt and the earcup.

 

The skirt should fit into the slot on the earcup with no gaps.

 

Replace any cushions that appear to be worn out.

 

 

Crackling sound

• Ensure the headset orientation is correct. Use the Left (L) and

audible with

Right (R) markings above the earcups to orient the headset

headset turned on

correctly.

in a loud

• Adjust the earcup fit. Refer to “Wearing and adjusting the head-

environment, or

set” on page 13.

Acoustic Noise

Cancelling® noise

• If your headset is battery-powered, check to see if the battery is

reduction is

low (indicated by fast blinking red LED).

intermittent.

• If your headset is aircraft powered, make sure the voltage

 

 

powering the headset is no less than 10 VDC.

 

• Inspect the seal between the ear cushion skirt and the earcup.

 

The skirt should fit into the slot on the earcup with no gaps.

 

Replace any cushions that have surface tears, torn stitching

 

joints, large wrinkles, or have become dried and stiff.

 

 

Auxiliary audio input

 

 

Problem

What to do

 

 

No audio from

• Turn source volume up.

auxiliary source.

• Try another source with the headset to eliminate the source as

 

 

the possible problem.

 

• Make sure multifunction switch is not set to the bottom (intercom

 

only) position. The multifunction switch must be either in the top

 

or middle position for audio from an auxiliary input to be enabled.

 

• Check the connection between the auxiliary source and the

 

control module. Both ends of the AUX IN connector cable must

 

be properly seated inside the sockets.

 

• If the multifunction switch is set to the prioritized position (top),

 

the auxiliary audio source will not be heard if there is an audio

 

signal from the intercom.

 

 

Audio in one ear

• Check the connection between the auxiliary source and the

only from the

module. Both ends of the AUX IN connector cable must be

auxiliary input.

properly seated inside the sockets.

 

• Make sure the earcup cover on the headset is in place and

 

properly connected. Refer to “Attaching the microphone

 

assembly” on page 8.

 

 

29

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Bose A20 manual Auxiliary audio input
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A20 specifications

The Bose A20 Aviation Headset is a remarkable piece of technology designed specifically for aviators and aviation enthusiasts. Since its release, it has garnered a reputation for delivering superior sound quality, comfort, and durability. Manufactured by the well-known audio company Bose, this headset integrates cutting-edge features that enhance the flying experience for pilots and passengers alike.

At its core, the Bose A20 boasts advanced noise cancellation technology. It employs an active noise reduction system that effectively eliminates unwanted ambient noise, allowing users to concentrate on their surroundings and communication without distractions. This feature is especially crucial in the noisy environment of an aircraft cockpit, where engine noise levels can be overwhelming. The A20 significantly reduces this noise, enhancing clarity during radio transmissions.

The headset also offers excellent audio performance. With clear and balanced sound reproduction, the A20 ensures that every communication and audio alert is heard without distortion. This is complemented by integrated Bluetooth technology, which enables wireless connectivity to mobile devices. Pilots can easily stream music or receive phone calls while keeping their hands free, further enhancing the headset's functionality.

Comfort is another hallmark of the Bose A20. The headset is designed for long-duration wear, featuring plush ear cushions and a lightweight construction. The adjustable headband allows for a customized fit, minimizing fatigue even during extended flights. Additionally, the A20 is built to withstand the rigors of aviation use, with rugged materials that ensure longevity.

Another standout characteristic is the intuitive controls and design. The headset is user-friendly, with simple buttons that allow pilots to adjust noise cancellation levels and manage Bluetooth connections effortlessly. Furthermore, the inclusion of a detachable audio cable adds versatility, making it compatible with various aircraft and devices.

In conclusion, the Bose A20 Aviation Headset is a top choice for pilots seeking an exceptional combination of sound quality, advanced noise reduction, comfort, and user-friendly features. Its innovative technology and thoughtful design make it a vital tool for anyone serious about aviation, ensuring a more enjoyable and productive flying experience. Whether in a small general aviation aircraft or a larger commercial cockpit, the A20 stands out as a leader in the aviation headset market.
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