Technical information

Using the Bose

Aviation Headset X

Wearing the headset

User comfort and good noise reduction performance require a proper

fit. Note the left and right earcup markings and place the headset on

the head as shown in Figure 3. Lightly grasp both earcups and position

them so that your ears are completely inside the ear cushions and you

feel even, gentle pressure around your ears. Adjust the headband to

rest gently on top of your head.

Final adjustment is best made in a noisy environment with the power

switch set to ON. See Figures 5 and 6 for details. Experience using the

headset helps establish a sense of how it should sound. When using

the headset in very loud conditions, as during takeoff, you may experi-

ence brief reductions in ANR as the headset compensates for a

momentary pressure change. If there is a problem, refer to Trouble-

shooting. If the problem persists, contact the Bose Aviation Headset

Department for assistance.

Note:

A low rumbling sound or frequent brief losses of ANR may

indicate an improper fit or blocked earcup ports. See General Care

and Maintenance.

If during a long flight you feel a slight pressure point, adjust the

headband position to restore comfort.

Figure 3

Wearing the headset