Sennheiser PXC 250-II Manuale utente

PXC 250-II

Stereo Headphones

Instruction manual

PXC250-II.book Seite 1 Montag, 18. April 2011 12:38 12

Contents

Important safety information ........................................... 2

PXC 250-II headphones ....................................................... 4

Delivery includes .................................................................. 4

Product overview ................................................................. 5

Putting the PXC 250-II into operation ............................. 6

Unfolding the headphones .......................................... 6

Inserting and changing the battery .......................... 7

Connecting the headphones ....................................... 7

Adjusting the headband .............................................. 8

Using the PXC 250-II ............................................................ 8

Adjusting the volume ................................................... 8

Switching NoiseGard on and off ................................. 9

Transporting the PXC 250-II ............................................10

Cleaning the PXC 250-II ....................................................11

Specifications ......................................................................12

Manufacturer Declarations ...............................................13

Thank you for choosing Sennheiser!

We have designed this product to give you reliable

operation over many years. Over 60 years of accu-

mulated expertise in the design and manufacture of

high-quality electro-acoustic equipment have made

Sennheiser a world-leading company in this field. Please

take a few moments to read these instructions carefully,

as we want you to enjoy your new Sennheiser products

quickly and to the fullest.

Important safety information

• Please read this instruction manual carefully and

completely before using the product.

• Make this instruction manual easily accessible to all

users at all times. Always include this instruction

manual when passing the product on to third

parties.

• Do not use the product in situations which require

special attention (e.g. in traffic or when performing

skilled jobs).

• Always keep the product dry and do not expose

it to extreme temperatures (normal operating tem-

peratures: 10°C/50°F to 35°C/95°F).

• Use the product with care and store it in a clean,

dust-free environment.

• The headphones contain magnets that generate a

magnetic field which could cause interference with

cardiac pacemakers and implanted defibrillators.

Keep the headphones at least 1.2” (3 cm) from

cardiac pacemakers or implanted defibrillators

• Please protect your hearing from high volume levels.

Sennheiser headphones also sound exceptionally

good at low volumes.

Intended use

Intended use of this product includes

• having read this instruction manual, especially the

chapter “Important safety information”,

• using the product within the operating conditions

and limitations described in this instruction manual.

“Improper use” means using the product other than as

described in this instruction manual, or under operating

conditions which differ from those described herein.

Important safety information

Safety instructions for standard batteries

If abused or misused, 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 away from children.

Do not short-circuit.

Do not heat above 70°C/158°F, e.g. do not

expose to sunlight or throw into a fire.

Do not mutilate or dismantle.

Do not continue to use defective batteries.

Immediately remove batteries from obviously

defective products.

Remove batteries from the product when it is

not used for extended periods of time.

Do not expose to moisture.

Do not charge non-rechargeable batteries.

PXC 250-II headphones

The PXC 250-II are closed, dynamic, supra-aural stereo

headphones with NoiseGard active noise compensation,

designed for use with in-flight entertainment systems.

The combination of passive and active noise reduction

enables you to enjoy music even in noisy environments.

Comfortable to wear and easy to use, the sturdy,

foldable headphones are also ideal for use with portable

audio sources.

NoiseGardTM

The NoiseGard 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 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.

Delivery includes

1 PXC 250-II headphones

1transportcase

1 in-flight adapter

(3.5 mm double mono jack plug)

1 AAA size alkaline battery, 1.5 V

1 instruction manual

Product overview

Overview of operating controls

LED indications

Headband

Ear pads

Audio cable

Battery compartment

– Volume + control

NoiseGard On – Off

switch with LED

Clip

LED Meaning Page

lights up red NoiseGard is switched on 9

flashes red Battery is almost flat 9

is off NoiseGard is switched off 9













쐋

Putting the PXC 250-II into operation

Putting the PXC 250-II into

operation

Unfolding the headphones

왘Separate the notched locking connection of the

headband by gently pulling it apart.

왘Unfold the headphones.

왘Turn the ear cups outwards by 90°.

WARNING! Magnetic fields can interfere with cardiac

pacemakers

The headphones contain magnets that

generate a magnetic field which could

cause interference with cardiac pace-

makers and implanted defibrillators.

왘Keep the headphones at least 1.2”

(3 cm) from cardiac pacemakers and

implanted defibrillators.

Putting the PXC 250-II into operation

Inserting and changing the battery

For powering the NoiseGard active noise compensation,

an AAA size battery is required.

왘Open the battery compartment .

왘Remove the flat battery (where applies).

왘Insert a new battery. Observe correct polarity when

inserting the battery.

왘Close the battery compartment . The cover lock

into place with an audible click.

Connecting the headphones

왘Connect the audio cable to the headphone socket

of your audio source.

You hear the sound from your audio source.

왘Slip on the in-flight adapter  if you wish to use

the headphones with the in-flight entertainment

system of the aircraft.

For best product performance, we recommend

using a standard battery instead of a rechargeable

battery.



Music

Photos

Videos

Extras

Settings

ShuffleSongs

쐋쐋

PXC250-II.book Seite 7 Montag, 18. April 2011 12:38 12

Using the PXC 250-II

Adjusting the headband

For good noise attenuation and best possible comfort,

the headband has to be adjusted to properly fit your

head.

Using the PXC 250-II

Adjusting the volume

왘Use the –VOLUME +  control to set the volume to

a comfortable level.

왘Wear the headphones so that

the headband runs over

the top of your head.

왘Adjust the length of the

headband so that

–theearpadsrest com-

fortably on your ears,

–a snug fit of the head-

band on the head is

ensured.

To ensure maximum noise attenuation, final

adjustment is best made in a noisy environment.

WARNING Hearing damage due to high volumes!

Listening at high volume levels for long

periods can lead to permanent hearing

defects.

왘Before putting the headphones on, set

the volume to a low level.

왘Do not continuously expose yourself to

high volumes.





Using the PXC 250-II

Switching NoiseGard on and off

To switch NoiseGard on:

왘Move the NoiseGard On – Off switch to the On

position.

The LED lights up red.

To switch NoiseGard off:

왘Move the NoiseGard On – Off switch to the Off

position.

The LED goes off.

When the battery is almost empty, the LED flashes

red. NoiseGard will continue to function for

approximately 2 hours.

When the battery is completely discharged, the

NoiseGard active noise compensation auto-

matically switches off. Audio will still be heard

through the headphones.

Vol –

Vol +





Off

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