Bose Headphones QC 2 User Guide page

The Bose® QuietComfort® 2  
Acoustic Noise Cancelling®  
May 13, 2003 AM257565_00_V.pdf Bose Corporation  
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We, the offerer:  
Bose Corporation, The Mountain, Framingham, MA  
01701-9168 USA  
acknowledge our sole responsibility,  
that the product:  
Kind of equipment: Headphones  
Type designation: QuietComfort® 2  
Acoustic Noise Cancelling®  
Model number:  
In accordance with EMC Directive 89/336/EEC  
and Article 10(1) of the Directive,  
is in compliance with the following  
norm(s) or document(s)  
Technical regulations: EN55013, EN55020  
Accredited by:  
Bose Corporation, The Mountain, Framingham, MA  
01701-9168 USA  
24 February 2003  
Nic Merks  
Bose Products B.V.  
Nijverheidstraat 8, 1135 GE Edam  
Vice President Europe  
Manufacturer’s authorized  
The Netherlands  
EU represnetative  
Please dispose of used batteries properly,  
following any local regulations. Do not incinerate.  
©2003 Bose Corporation. No part of this work may be reproduced, modified, distributed, or  
otherwise used without prior written permission.  
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About Your Headphones  
QuietComfort 2 Acoustic Noise  
Cancelling headphones  
Thank you for purchasing the QuietComfort 2 Acoustic  
Noise Cancelling headphones from Bose. Advanced  
research and development, innovative engineering, and  
integrated technologies enable the headphones to reduce  
unwanted noise and provide you with exceptional acoustic  
performance in a comfortable, convenient package.  
L mark  
R mark  
earcup cushions  
plug adapter  
1/8" (3.5 mm)  
Headphone plug  
1/4" (6.3 mm)  
Stereo phone adapter  
Insert the battery rst, before you put on the headphones.  
Wearing the headphones  
As you put on the headphones, observe the markings that  
identify the left (L) and right (R) earcups. Adjust the  
headband so it rests gently on top of your head and the  
earcup cushions t comfortably around your ears.  
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Using your headphones  
If you plan to use them for noise reduction only, simply put  
on the headphones and turn on the power switch, located  
on the right earcup. There are no cable connections  
required for this use.  
To use the headphones for audio, rst notice the settings on  
the audio attenuator shown below.  
These Hi and Lo settings are used to adjust the output  
volume of different audio sources. “Lo” is typically used for  
airline audio or audio devices that use A/C power. “Hi” is  
typically used for battery-powered audio devices.  
Note: Hi and Lo settings have no effect on noise  
Select the appropriate setting for the sound source you will  
use. Then insert the audio attenuator into the opening on  
the left (L) earcup and press it in so it is ush with the side  
of the earcup.  
As soon as you connect the headphone plug to your audio  
source, you are ready to put on the headphones and turn  
on the power switch to enjoy both audio and noise  
reduction. Use the volume control on the selected audio  
source to make additional volume adjustments.  
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Connecting to an audio source  
You can use the headphones with a variety of audio  
sources: airline audio, a CD, DVD or MP3 player, a per-  
sonal or laptop computer, or home stereo. The maximum  
input voltage is 9 Vrms.  
To make the connection, insert the headphone plug into  
the jack on the audio source you will use.  
Notice the jack congurations on the left in the chart below.  
Instructions on the right tell you how to connect to each  
type of jack:  
A single, 3.5 mm jack (on most portable  
sources) – use the single plug. No adapter needed.  
Two 3.5 mm jacks – use the dual plug adapter.  
One 3.5 mm jack and one power jack – use the  
single plug in the 3.5 mm jack (the larger one).  
The smaller jack does not need a connection.  
One power jack and two 3.5 mm jacks – use  
the dual plug adapter for the two 3.5 mm  
jacks. The power jack does not need a connection.  
One 6.3 mm jack (for home stereos) – use the  
6.3 mm stereo phone adapter.  
Note: Audio jack configurations on airplanes vary. Also,  
airline audio may not equal the high quality audio you can  
get from a home stereo or a portable source.  
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Folding the earcups for storage  
QuietComfort® 2 Acoustic Noise Cancelling® headphones  
feature rotating earcups that fold at for easy, convenient  
storage. They rotate in one direction only.  
Note: Incorrectly rotating the earcups can damage the  
Reattaching earcup cushions  
The earcup cushions are held in place by a mounting  
ange. This ange snaps under small tabs located  
around the inside rim of the earcup.  
If an earcup cushion becomes partially or completely  
detached, push its mounting ange back into the earcup.  
Then use your nger or thumb to press around the edge of  
the mounting ange, making sure it snaps into place all the  
way around the earcup.  
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Battery replacement  
Although it varies by usage, battery life averages 35 hours.  
With the headphones turned on, the battery light indicator  
will ash when there are approximately 5 hours of battery  
life remaining.  
When a replacement is needed, use 1 AAA alkaline battery  
(IEC LR03). Tilt the top of the right earcup inward to gain  
access to the battery compartment.  
Note:You can use rechargeable batteries (NiMH, com-  
posed of nickel metal hydride, are recommended). They  
average half the life of alkaline batteries. However, the low  
battery indicator light is not set for such batteries and will  
not be a reliable indicator of their remaining battery life.  
Replacement parts and accessories  
You can order parts and accessories, as listed below, by  
contacting Bose® Customer Service. See the phone  
number for your area on the inside back cover of this guide.  
• Deluxe carry case  
• Dual plug adapter  
• Replacement ear cushion kit  
• 1.5 m extension cord  
• 6.2 m extension cord  
• Audio attenuator  
• Accessory kit  
(includes adapters,  
extension cord,  
2 AAA batteries)  
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Cleaning the headphones  
Scheduled cleaning is not required. However, you can  
simply wipe the outside surfaces with a damp cloth, as  
needed. Also, be sure that the earcup ports are clear and  
that no moisture is allowed into the earcups.  
Possible Cause Solution  
Noise reduction  
No power  
to headphone  
Turn unit on;  
check battery  
Low or no  
Audio source  
Turn source  
volume up or set  
audio attenuator  
on “Hi”  
Audio attenuator  
Check connection  
at source and  
insertion into  
the earcup  
Crackling noise;  
intermittent loss  
of noise reduction  
Low battery  
Low rumbling  
Poor earcup t  
Adjust t on ears  
Ports blocked  
Clear ports  
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Other needs  
These headphones are not engineered to meet the  
needs of pilots or to meet civil aviation authority  
standards for aviation communications.  
For that purpose, Bose offers the Aviation Headset  
which features a microphone with the appropriate power  
and intelligibility for transmission of ight information. It is  
engineered to withstand the altitude and temperature  
conditions common in non-commercial aircraft.  
For information on the Bose® Aviation Headset  
contact Bose Corporation by calling 1-508-766-1099  
or +31(0)299-390777.  
Long-term exposure to loud music may cause hearing  
damage. It is best to avoid extreme volume when using  
these headphones, especially for extended periods.  
Do not use these headphones when operating a motor  
vehicle on a public road, or where the inability to hear  
outside sounds may present a danger to the user or  
Sounds that you rely on as reminders or warnings may  
have an unfamiliar character when you are using the  
headphones. Be aware of how these sounds vary in  
character, so you can recognize them as needed.  
Do not drop, sit on, or allow the headphones to be  
immersed in water.  
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Phone: 0299 390111  
Fax: 0299 390114  
Phone: 0299 390111  
Fax: 0299 390109  
New Zealand  
Phone: 800 023 367  
Phone: 61 2 8737 99567  
(Australian number)  
Phone: 62 82 15 60  
Fax: 62 82 15 69  
Phone: 012 390800  
Fax: 012 390840  
Phone: 01-60404340  
Fax: 01-604043423  
Phone: 04343 7777  
Fax: 04343 7818  
Phone: 061-9815544  
Fax: 061-9815502  
Phone: 031-878850  
Fax: 031-274891  
Phone: 06172-71040  
Fax: 06172-710419  
United Kingdom  
Phone: 0800 614293  
0870 7414500  
Phone: 01-30616363  
Fax: 01-30614105  
Fax: 0870 7414545  
Phone: 042-9661988  
Fax: 042-9661988  
United States  
Phone: 1-888-757-9943  
Fax: 1-877-289-4366  
Phone: 066-5670802  
Fax: 066-5680167  
©2003 Bose Corporation,  
The Mountain, Framingham, MA  
01701-9168 USA  
PN257565 AM Rev.00 JN30819  
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