Sennheiser Headphones PXC 350 User Manual

PXC 350  
Bedienungsanleitung  
Instruction Manual  
Notice d‘emploi  
Istruzioni per l‘uso  
Instrucciones de uso  
Gebruiksaanwijzing  
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Safety instructions  
y Please read these instructions carefully and  
completely before using the headphones.  
y Make these instructions easily accessible to all  
users at all times. Always include these instructions  
when passing the headphones on to third parties.  
y Do not wear the headphones in situations which  
require special attention (e.g. in traffic or when  
performing skilled jobs).  
y Always keep the headphones dry and do not  
expose them to extreme temperatures (normal  
operating temperatures: 10 °C to 35 °C).  
y Use the headphones with care and store them in a  
clean, dust-free environment.  
y Switch off the headphones after use to conserve  
battery power. Remove the batteries if the  
headphones will not be used for extended periods  
of time.  
y Please protect your hearing from high volume  
levels. Sennheiser headphones also sound  
exceptionally good at low volumes.  
Intended use of the headphones  
Intended use includes:  
y having read these instructions, especially the  
chapter “Safety instructions”,  
y using the headphones within the operating  
conditions and limitations described in this  
instruction manual  
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Improper use  
“Improper use” means using the headphones other than as described in these  
instructions, or under operating conditions which differ from those described herein.  
Safety instructions for batteries/rechargeable batteries  
If abused or misused, batteries/rechargeable batteries may leak and, in extreme  
cases, may even present an explosion and fire hazard. Sennheiser does not accept  
any liability for damage arising from abuse or misuse.  
Keep batteries out of reach  
and out of sight of  
children.  
Immediately remove flat batteries/  
rechargeable batteries from the  
device.  
Do not heat or throw into  
fire.  
Observe correct polarity.  
Switch off battery-powered/  
rechargeable battery-powered devices  
when not in use.  
Do not short-circuit.  
Remove batteries/rechargeable  
batteries when the device is not used  
for extended periods of time.  
Only charge rechargeable batteries  
with the appropriate Sennheiser  
chargers.  
Do not solder.  
Do not mutilate or  
dismantle.  
Do not pack charged  
batteries loose – danger of  
shorting out – fire hazard.  
Do not get flat and fully  
charged batteries/  
After extended periods of non-use,  
charge rechargeable batteries before  
using them.  
Only charge rechargeable batteries at  
ambient temperatures between 10 °C  
and 40 °C.  
rechargeable batteries  
mixed up.  
Dispose of exhausted batteries/  
rechargeable batteries at special  
collection points or return them to  
your specialist dealer.  
Do not attempt to  
rechargenon-rechargeable  
batteries.  
3
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Delivery includes  
Delivery of the PXC 350 headphones includes:  
1 PXC 350 headphones  
1 soft case  
1 audio adapter (¼" (6.3 mm) stereo jack)  
1 in-flight adapter (2 x 3.5 mm mono jack)  
2 AAA size batteries  
Instructions for use  
The PXC 350 headphones  
The PXC 350 are closed, dynamic, circumaural stereo  
headphones with NoiseGard Advance active noise  
compensation technology, designed for use with e.g.  
in-flight entertainment systems. Passive and active  
noise reduction enable you to enjoy music even in  
noisy environments.  
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NoiseGard Advance  
The NoiseGard Advance active noise compensation  
system is based on the principle of cancelling out  
sound using “anti-sound” (phase-inverted sound).  
Tiny microphones pick up low-frequency ambient  
noise (up to 1 kHz) near the ear. The NoiseGard  
Advance electronics use this noise to generate a  
sound wave which is the exact opposite (IE: at the  
same level but polarity reversed – 180° out-of-  
phase), the effect being that the polarity reversed  
signal cancels most of the outside noise.  
Additional features  
y Outstanding sound quality due to patented  
adaptive baffle damping and Duofol diaphragms  
y Optimum protection against ambient noise due to  
NoiseGard Advance active noise compensation  
y Great for travel: comfortable, rugged and foldable  
headphone construction with single-sided cable  
y Designed for use with in-flight entertainment  
systems and audio, video and game consoles  
y Without the detachable audio cable, the head-  
phones can be used as passive hearing protectors  
5
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Operating controls  
³
º
²
·
»
´ ¿  
³ Headband  
· Slide switch for NoiseGard operation  
» LED (red)  
¿ Socket for audio cable  
´ Audio cable  
² Earpads  
Volume control VOLUME (on audio cable)  
º Battery compartment (on both sides)  
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Putting the PXC 350 into  
operation  
Inserting and replacing the batteries  
For powering the NoiseGard Advance active noise  
compensation, two AAA size batteries or rechargeable  
batteries are required.  
̈ Open the battery compartments º on the left and  
right earcups.  
º
̈ Remove the flat batteries.  
̈ Insert the batteries as shown. Please observe  
correct polarity when inserting the batteries.  
̈ Close the battery compartments º. The battery  
compartment covers lock into place with an audible  
click.  
Notes:  
– The headphones can also be used without  
batteries. Switch NoiseGard Advance off before  
removing the batteries (see “Switching NoiseGard  
Advance on/off” on page 10).  
– Always replace the two batteries (left and right)  
at the same time.  
º
– Remove the batteries if the headphones will not  
be used for extended periods of time.  
When the batteries are almost flat, the LED » flashes.  
You then have to replace the batteries.  
»
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Adjusting the headband  
For optimum transmission quality, good noise  
attenuation and best possible comfort, the headband  
has to be adjusted to properly fit your head:  
³
̈ Wear the headphones so that the headband ³  
runs over the top of your head.  
̈ Adjust the length of the headband so that  
– your ears are completely inside the earpads ²,  
– you feel even, gentle pressure around your ears,  
– a snug fit is ensured.  
²
̈ Final adjustment is best made in a noisy environ-  
ment!  
Connecting the headphones  
̈ Connect the audio cable ´ to the headphone  
socket of your sound source.  
You hear the sound from your sound source.  
If the plug on the audio cable does not fit:  
µ
̈ Slip on the audio adapter for ¼" (6.3 mm) jack  
socket µ (see diagram on the left).  
If you want to use the headphones with an in-flight  
entertainment system:  
´
̈ Slip on the in-flight adapter (see diagram on the  
left).  
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Using the PXC 350  
Adjusting the volume  
Volume up? - No!  
CAUTION!  
When people use headphones, they  
tend to choose a higher volume than  
with loudspeakers. Listening at high  
volume levels for long periods can lead  
to permanent hearing defects. Please  
protect your hearing, Sennheiser head-  
phones also sound exceptionally good  
at low volumes.  
̈ Turn the volume control VOLUME to adjust the  
volume.  
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Switching NoiseGard Advance on/off  
To switch NoiseGard Advance on:  
̈ Set the slide switch · to position A as shown.  
The LED » lights up red.  
To switch NoiseGard Advance off:  
̈ Set the slide switch · to position B.  
The LED » goes off.  
Note:  
·
»
Switch NoiseGard off after use to conserve battery  
power.  
When the batteries are completely discharged, the  
NoiseGard Advance active noise compensation  
automatically switches off. Audio will still be heard  
through the headphones when the slide switch is set  
to position B.  
A
B
Meanings of the LED »:  
LED  
Meaning  
red  
NoiseGard Advance is switched on  
flashing  
Batteries/rechargeable batteries are  
almost flat  
»
10  
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Detaching and connecting the audio cable  
The audio cable is detachable (see diagram on the  
left). Without the cable, the headphones can be used  
as passive hearing protectors.  
To detach the audio cable:  
̈ Pull the plug of the audio cable from the socket ¿.  
To connect the audio cable:  
̈ Insert the plug of the audio cable into the socket ¿.  
¿
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Folding up the headphones  
For space-saving transportation, the headphones can  
be folded up in different ways:  
To fold up the headphones as flat as possible:  
̈ Rotate the earcups by 90° as shown.  
To fold up the headphones as compact as possible:  
̈ Tuck the earcups between the headband as shown.  
For safe transportation of the headphones, use the  
supplied soft case and fold the headphones as follows:  
µ
̈ Rotate the earcups by 90°.  
̈ Pull out the right earcup and then fold it in.  
̈ Place the headphones flat into the soft case as  
¾
shown.  
The two AAA size batteries ¾ can be inserted into the  
two straps at the side of the soft case.  
The accessories can be transported in the cover of the  
soft case:  
µ Audio adapter (¼" (6.3 mm) stereo jack)  
In-flight adapter (2 x 3.5 mm mono jack)  
12  
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Accessories and spare parts  
Cat. No. Accessories/Spare parts  
517680 1 pair of earpads incl. ear cap  
517681 Audio cable  
Care and maintenance  
Liquids can damage the electronics of  
the headphones!  
CAUTION!  
Liquids entering the housing of the  
headphones can cause a short-circuit and  
damage the electronics.  
̈ Only use a soft, slightly damp cloth to  
clean the headphones. Do not use any  
cleansing agents or solvents.  
̈ Use a soft, slightly damp cloth to clean the head-  
phones from time to time.  
Replacing the earpads  
You can replace the earpads. Spare earpads are  
available as accessories.  
̈ Grasp the edge of the earpad ² behind the earcup  
and peel it up and away from the earcup.  
̈ Press the new earpad ² onto the earcup until it  
locks into place with an audible click. Repeat for the  
other earcup.  
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Specifications  
Transducer principle  
Ear coupling  
dynamic, closed  
circumaural  
Frequency response  
8 – 28,000 Hz  
Nominal impedance  
active/passive  
750/150 Ohms  
Sound pressure level at  
1 kHz and 1 V  
108 dB SPL  
THD at 1 kHz  
0.10 %  
Cable connector  
In-flight adapter  
Audio adapter  
3.5 mm stereo jack  
2 x 3.5 mm mono jack  
¼" (6.3 mm)  
stereo jack  
Cable length  
Weight  
1.4 m  
w/o cable and batteries 245 g  
Batteries/rechargeable  
batteries (AAA)  
Passive attenuation  
NoiseGard  
2 x 1.2 – 1.5 V  
32 dB  
active noise compensation18 dB  
14  
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Manufacturer Declarations  
Warranty  
The original Sennheiser product you have purchased is covered by a  
warranty of 24 months. The warranty period begins on the date of  
purchase of brand new, unused products by the first end user.  
Please retain your sales receipt (or your warranty certificate) as  
proof of purchase. Unless you submit proof of purchase, which will  
be verified by your local Sennheiser service partner, you will be  
obliged to pay for any repairs that are carried out. Proof of purchase  
must state the date of purchase and name of the product.  
We shall satisfy our warranty obligations by remedying any  
material or manufacturing faults free of charge at our discretion  
either by repair or by exchanging individual parts or the entire  
appliance. Any defective parts removed from a product during the  
course of a warranty claim shall become the property of Sennheiser  
electronic GmbH & Co. KG.  
The following cases are not covered by the above warranty:  
y
minor faults or deviations in the quality of a product which do  
not affect the product's value or fitness for its intended purpose  
y
y
any accessories supplied with the product  
rechargeable and disposable batteries (these products have a  
shorter service life, the length of which also depends on the  
frequency of use)  
y
faults resulting from improper use (e.g. operating errors,  
mechanical damage, incorrect operating voltage)  
Proper use for the purposes of this warranty is defined as use of  
the product under the conditions stated in the instructions for  
use.  
y
y
faults due to wear and tear  
any modification of Sennheiser products effected by you or a  
third party, unless Sennheiser has given its prior written consent  
to the nature and extent of the modification  
y
y
faults caused by force majeure  
faults of which the purchaser was already aware at the time of  
purchase  
All warranty claims become void if the product is tampered with by  
unauthorised persons or repair shops.  
Warranty claims can be enforced in any country throughout the  
world in which the statutory rights of the country concerned are not  
in conflict with our warranty regulations. No other warranty claims  
15  
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or claims over and above the rights stated in these terms and  
conditions will be accepted.  
Consumers may be entitled to statutory rights in their own  
countries which are not restricted by these warranty terms and  
conditions, as the warranty is governed by the laws of the country  
in which the Sennheiser product was purchased by the consumer.  
The provisions of the UN Convention on the International Sale of  
Goods do not apply to this service.  
If you wish to file a claim under the warranty, please send the  
product to your local service partner, together with accessories and  
proof of purchase. The customer bears the risk of shipment. To  
avoid any damage in transit, please use the original packaging if  
possible.  
An up-to-date list of all service partners of Sennheiser electronic  
GmbH  
&
Co.KG worldwide is available on the internet at  
The customer bears the risk and cost of shipment. To avoid any  
damages in transit, please use the original packaging if possible.  
CE Declaration of Conformity  
This equipment is in compliance with the essential requirements  
and other relevant provisions of Directive 89/336/EU. The  
Before putting the device into operation, please observe the  
respective country-specific regulations!  
WEEE Declaration  
Your Sennheiser product was developed and manufactured with  
highquality materials and components which can be recycled and/  
or reused. This symbol indicates that electrical and electronic  
equipment must be disposed of separately from normal waste at  
the end of its operational lifetime.  
Please dispose of this product by taking it to your local collection  
point or recycling centre for such equipment. This will help to  
protect the environment in which we all live.  
Batteries or rechargeable batteries  
The supplied batteries or rechargeable batteries can be recycled.  
Please dispose of them as special waste or return them to your  
specialist dealer. In order to protect the environment, only dispose  
of exhausted batteries.  
Sennheiser and NoiseGardTM are registered trademarks of  
Sennheiser electronic GmbH & Co. KG.  
16  
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Sennheiser electronic GmbH & Co. KG  
30900 Wedemark, Germany  
Phone +49 (5130) 600 0  
Fax +49 (5130) 600 300  
Printed in China  
Publ. 06/07  
515699/A01  
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