Bose | Aviation Headset X | A20® Aviation Headset (Bluetooth) Brochure

NEW Bose® A20™ Aviation Headset
The Bose® commitment to you.
For as long as you own your headset, we’re here to provide technical advice, installation information,
and warranty and repair service.
©2010 Bose Corporation. The Bluetooth word mark is a registered trademark owned by Bluetooth SIG, Inc., and any such use by Bose Corporation is under license. Quotes reprinted with permission: Professional Pilot’s 2009 headset
preference survey, 12/09; The Aviation Consumer, 8/07. C_008741
Bose was the first to introduce active noise reducing
headsets to aviation more than 20 years ago, forever
changing the way pilots fly. Now, the new Bose ® A20 ™
Aviation Headset introduces an entirely new standard.
This headset has been engineered for significantly increased
noise reduction in even louder environments. With an improved
degree of comfort you’ll appreciate, and the clear audio you
expect from Bose.
1_Significantly greater noise reduction.
2_Improved level of comfort.
The A20 Aviation Headset offers you new features, too – including
a Bluetooth ® communications interface and an auxiliary audio input
for your portable GPS, traffic warning system or other audio devices.
We invite you to experience these features all firsthand in your own choice
of aircraft. We believe that no other aviation headset delivers this advanced
combination of noise reduction, comfort and communications performance.
3_Clear audio.
4_Bluetooth® communications interface.
5_Auxiliary audio input.
6_User-defined audio prioritization.
7_Automatic shutoff.
8_Meets or exceeds all TSO standards.
9_ Made in the U.S.A.
from the company that created the concept.
Bose engineers have discovered a new approach to sense more
of the noise in any cockpit, constantly measuring it with microphones both inside and outside each earcup. Sophisticated
electronics work separately with each microphone
At the same time, our new proprietary ear cushions help
signal to compare the noise with the sound you want
provide improved passive noise reduction and a more comfortable
to hear. Then, instant by instant, the noise is reduced
fit. An exclusive design allows more room for your ears without
with a more accurate opposite “cancelling” signal.
increasing earcup size. Distribution of weight throughout the
headset and choice of materials adds to the comfort, and the
A20™ Aviation Headset also has one-third less clamping
force than most others. You can wear this headset for
hours – and maybe even forget you have it on.
The headset’s increased noise reduction combines with Bose
sound quality to create the audio experience you really want when
you fly – improved clarity for your communications. There’s also a
new Bluetooth® communications interface with integrated sidetone
technology. This Bose exclusive technology lets you hear your own voice
more naturally when talking on your Bluetooth mobile phone, even when
not connected to your intercom.
The control module
with Bluetooth
A new auxiliary audio input
allows you to connect another
external audio source, such as a
portable GPS or traffic warning
system. Priority switching gives
you more control over what you
hear by providing two listening
settings – mixed (intercommunication signal mixed
with the aux signal) and prioritized (aux signal
mutes when intercommunication signal is pres-
ent). Passengers and pilots both can select
their own setting to match their preferences. It’s the clear audio you need –
with more options you want.
Easily connects to your GPS
or wirelessly to your phone.
Exclusive technology lets
you hear your voice more
naturally when talking on
your Bluetooth® phone
Comfort is increased
through choice of materials
and weight distribution
New proprietary
ear cushions
help provide
improved passive
noise reduction
and a more
comfortable fit
Microphones both
inside and outside
each cup constantly
measure noise
Bose introduced the world’s first noise
New Bluetooth
cancelling headset in 1986 – on the historic
around-the-world flight of the experimental
Voyager aircraft. We’re proud of that accomplishment, and even prouder of the fact that
we continue to lead the field.
Prioritization options
let you decide what
audio sources to hear
when you fly
Sophisticated electronics
reduce noise with a more
accurate “cancelling”
Our aviation headset has topped Professional Pilot magazine’s annual preference survey for
the past nine years – every year the magazine has held it. The Aviation Consumer named our
previous model the “Best ANR Headset” and concluded: “On a pure performance and preference
New auxiliary input
for an external
audio source
Exclusive design allows more
room for the ears without
increasing earcup size
Switch the mic and cable to
either side to match your
basis, there’s the Bose Headset X and then there’s everything else.”
Today, the new and exclusive Bose® technologies in our A20™ Aviation Headset build on that legacy,
and take acoustic noise reducing headsets a significant step further. Unwanted noise is reduced more
accurately across a wider range of frequencies, with greater comfort and expanded communications
capabilities. The end result for you is a better flight experience.
Carrying case
The A20™ Aviation Headset comes in several configurations, allowing you to adapt it to your preferences and aircraft. Each complete
headset comes with a smooth glide boom microphone and an inline control module featuring auxiliary audio input, audio prioritization
left/right volume control, on/off switch and optional Bluetooth® communications capability. In-box accessories include two AA batteries,
a male-to-male 3.5mm aux-in adapter cable and a carrying case. Because of the modular nature of the A20 Aviation Headset, different
cable configurations may be purchased separately and added easily with no need for adapter plugs.
Dual General Aviation (G/A) plug
Complete headset model with Bluetooth module
Complete headset model with conventional module
Connects the headset to the aircraft’s ICS via a dual plug, and is not powered by the
aircraft. Two alkaline AA batteries provide a minimum of 40 hours of operation while
flying. Smart shutoff preserves battery life when the headset is not in use. Specify
Bluetooth communications module or conventional module.
Flex power 6-pin connector
Complete headset model with Bluetooth module
Complete headset model with conventional module
Connects the headset to the aircraft via a 6-pin connector, and is powered directly
from the aircraft. Two AA alkaline batteries also can be used with the optional 6-Pin
Connector to Dual G/A Plug Cable Adapter to provide a new level of flexibility (see
Accessories section on facing page). When disconnected, the flexible power feature
lets the headset switch seamlessly from aircraft power to battery power, so users
maintain the same experience whether the headset is plugged into or unplugged
from the aircraft. Specify Bluetooth communications module or conventional module.
U174 single plug with electret mic and
Bluetooth communications interface.
Smart shutoff preserves battery life.
Choose from the following
microphone options:
Dynamic mic
Low impedance – 5 ohm and 150 ohm.
Bluetooth not available for dynamic
mic variants.
Electret mic
High impedance – for most U.S.
general aviation aircraft.
GSA Contract # GS-07F-0232N
Technical Information
Additional Control Module Cable
• Specify Bluetooth® communications module or conventional module
• Specify connector type: dual G/A, 6-pin install, 5-pin XLR or U174
15,000 feet maximum for full noise reduction
6-Pin Connector to Dual G/A Plug Cable Adapter
Allows a headset with a 6-pin connector to connect into a standard
dual G/A plug for additional connection flexibility.
Battery power: 3 volts (40+ hours from
2 AA alkaline batteries)
Aircraft power: 10 to 32 VDC
Bluetooth ® communications
Hands-free profile, Bluetooth 2.1
Operating: 25 mA in typical aircraft noise
Bluetooth technology QD ID
Bose® A20™ Aviation Headset: B016487
Fuse/breaker recommended
¼-amp, fast-blow fuse (AGC ¼-amp fuse)
or ½-amp circuit breaker
FAA Technical Standards Order (TSO)
Bose A20 Aviation Headset, its interface, cables
and electret boom microphone are certified to the
Federal Aviation Administration’s Technical Standard
Order number TSO-C139. The headset system has
been designed to function per headset performance
requirements described in RTCA/DO-214 and to
withstand exposure to the environmental conditions
described within RTCA/DO-160 F as well as several
other environmental tests including those for humidity,
salt spray, temperature cycle and shock. This enables
long life and durability in the real world.
Replacement Ear Cushion Kit
Supple ear cushions. One pair.
Replacement Headband Cushion
Sheepskin headband cushion for comfortable on-head fit.
Replacement Microphone Windscreen
Windscreen muff to protect the boom microphone element.
Aircraft Panel Connector Installation Kit
Wire harness for the 6-pin connector configuration.
Service Kit
Includes replacement ear cushions, microphone windscreen
and headband cushion.
Monaural mode: 160 ohms ON and OFF
Stereo mode: 320 ohms ON and OFF
12 ounces
Microphone (electret)
Bias required: 8 to 16 VDC through 220 to
2200 ohms
Sensitivity: Varies depending on bias and AC radio
input impedance. Typical output is 600 mV at 114
dB SPL. To assure proper modulation of the radio,
it is recommended that an avionics technician adjust
its input to match the output of the microphone.
Microphone (dynamic)
Impedence: 5 ohms
Sensitivity: Equivalent to M-87/M-101
5-year limited warranty
Made in the U.S.A.
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