Bose A20 manual Replacing parts, Microphone windscreen, Headband cushion

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HEADSET CARE AND MAINTENANCE

Microphone windscreen

Remove the windscreen from the microphone as described in “Microphone windscreen replacement,” below.

Rinse and air dry the windscreen. Make sure the windscreen is completely dry, then reattach.

Earcup inner screen

Do not attempt to remove, replace, repair, or clean this component. Located inside the earcup, the inner screen is critical to proper headset operation. If the screen appears to be damaged or worn out, contact Bose.

If the inner screen becomes damp from environmental moisture such as light rain, dew, perspiration, or condensation, allow it to air dry only. Do not use electric heaters, blowers, or hairdryer-type devices to dry the inner screen.

Headband cushion

1.Remove the cushion as described in “Headband cushion replacement” on page 26.

2.Place the cushion in a solution of water and a mild detergent.

3.Allow the cushion to air dry, then reattach.

Replacing parts

Through normal use, parts like windscreens and ear cushions may require periodic replacement. Replacement parts can be ordered directly from Bose Corporation. Please refer to “Contact information” on page 37.

Microphone windscreen replacement

1.Roll the band that secures the windscreen off the tip of the microphone and dispose of it.

2.Gently slide the windscreen off the microphone.

3.Slide the replacement windscreen on and make sure it fits completely over the microphone.

4.Roll the new band onto the microphone tip, to about 1/4 inch from the end of the windscreen, to secure it.

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Contents A20 Aviation Headset Important Safety Instructions Safety InformationContents Troubleshooting Operational advisory Hearing safety Volume controlUsing audio sources Recognizing aircraft soundsHeadset earcup requirements Earcup inner screenWhat’s included IntroductionHeadset assembly What’s in the cartonBluetooth control module Conventional control module Control module variationsPower and cable variations Battery powered options Dual powered optionsMicrophone assembly Attaching the microphone assemblyBattery compartment Opening the battery compartmentOperation switches To change the operation switchesAuto Off functionality Inserting and replacing the batteriesTo insert or replace the batteries Connecting the headset to the aircraft Using the 6-pin plugTo connect the headset To disconnect the headsetUsing the dual general aviation plugs Using other plug typesMicrophone placement Wearing and adjusting the headsetConditions related to fit Clothing clips Using the control module Power buttonPower indicator Indicator color Power source Type of light IndicatesAuxiliary AUX audio input Audio priorityMultifunction/Audio priority switch Multifunction/audio priority switch has three positionsUsing the headset With a Bluetooth-enabled phone Pairing the headset with your phoneBluetooth indicator light status Reconnecting to a previously connected phoneRecovering a lost connection Disconnecting a Bluetooth technology-enabled phoneBluetooth volume control To clear pairing device history from the headsetMaking and answering calls Cleaning the headset General cleaningInstructions for airworthiness Headset earcup openingsReplacing parts Microphone windscreen replacementMicrophone windscreen Headband cushionBattery replacement Ear cushion replacementReplacing the ear cushions Microphone assembly or access cover replacement Headband cushion replacementStorage Noise Reduction Case of difficultyCommunications Audio Auxiliary audio input Bluetooth wireless technology Auto offMounting the aircraft panel connector Mono connection diagram Stereo connection diagramHelicopter U174 connection diagram Details on making the connectionsTechnical Information FAA Technical Standards Order Condition CategoryWarranty Limited warranty serviceLocating the headset serial number To return your headset to Bose for repairOrdering parts and accessories Contact informationService and Warranty Information

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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