Bose A20 Aviation Owner's Manual - Page 15

Browse online or download pdf Owner's Manual for Headsets Bose A20 Aviation. Bose A20 Aviation 44 pages. Aviation headset
Also for Bose A20 Aviation: Quick Reference Manual (2 pages), Owner's Manual (44 pages), Owner's Manual (43 pages), Owner's Manual (40 pages), Owner's Manual (44 pages), Quick Reference Manual (2 pages)

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Proper fit on your head is important both for comfort and optimal noise reduction

performance. Here are a few guidelines:

• Use the left (L) and right (R) markings above the earcups to orient the headset

properly.

160º

• The microphone is intended to rotate no more than 160° as shown above. Do not

force the microphone beyond the intended rotation.

• As you put the headset on, lightly grasp each earcup and adjust it so its cushion

is completely over your ear. You should feel an even, gentle pressure all around

each ear.

• Adjust the headband so it rests gently on top of your head.

• Make your final adjustments with the headset powered on in a noisy

environment.

In very loud conditions, such as during takeoff, you may experience a brief reduc-

tion in Acoustic Noise Cancelling

pressure change. If the problem continues when the sound level returns to normal,

see "Noise reduction" on page 30. If the problem persists, contact Bose Techni-

cal Support.

A low rumbling sound or frequent, brief losses of Acoustic Noise Cancelling noise

reduction may indicate an improper fit or blocked earcup ports. See "Headset

earcup openings" on page 26 for instructions on removing blockages.

During a long flight, you may feel a slight pressure point, which can be relieved by

adjusting the headband position. Your experience with using the headset will help

establish a sense of how it should sound and feel.

as the headset compensates for a momentary

Using the Headset

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