©2023 Bose Corporation, 100 The Mountain Road
Framingham, MA 01701-9168 USA
AM876057-0010 Rev. 00
Acoustic Noise Cancelling (ANC) functions
HIGH Maximum quiet and noise cancellation across the entire spectrum. Best
signal-to-noise ratio for radio and intercom communications in loud aircraft.
MED Consistent noise reduction across a wide range of frequencies. Best for clear
and comfortable noise cancellation in typical jet aircraft.
LOW Best for improved interpersonal communication outside of the intercom.
NOTE: To set noise cancellation to LOW on a single earcup, set the
Tap Control switch to ON, and firmly double-tap the earcup.
Secondary audio priority
MUTE When an intercom signal is detected, secondary audio is temporarily
muted until intercom audio ceases.
MIX When an intercom signal is detected, secondary audio is mixed with
intercom audio.
OFF Only intercom audio is active. Secondary audio functionality is disabled.
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Operation switches
REVERSIONARY Disable all non-critical functions, leaving
only intercom and Acoustic Noise
Cancelling (ANC) enabled. Use during
emergency hardware or software failures.
NOTE: Keep switch in OFF position
during normal use.
TAP CONTROL Enable/Disable Tap Control feature.
PRIORITY Select priority between two secondary
audio sources.
INTERCOM Process audio as Mono or Stereo.
AUTO OFF Power o automatically after a period
of inactivity.
AUTO ON Power on automatically when connected
to aircraft power.
NOTES:
• For operation switch details, see the owner’s guide.
• Some operation switches are not available on all models.
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