Omnitronic NCH-1000 Bedienungsanleitung

USER'S MANUAL
STEREO HEADPHONES
Stereo headphones with active noise canceling function
The OMNITRONIC NCH-1000
noise canceling function. Disturbing ambient noise in the low frequency range is recorded by tiny
microphones and deleted by counter-sound (phase inverse tones). Thus, a noise canceling of more than
65 % is achieved. For operation, two 1.5 V micro batteries (type AAA) are required. The
also be used passively, ie. without noise canceling and without batteries. The
and are supplied complete with a practical transport case, batteries and two audio adapters.
Safety Instructions
Always turn down the volume control before plugging the headphones into a sound source.
Turn up the volume control only far enough to hear properly.
If your are connecting these headphones to an airplane's sound system, listen at low levels so that
loud messages from the pilot do not discomfort.
Ringing in the ears may indicate that the volume level is too high. Lower the volume.
Do not use these headphones where vehicular traffic is present, or in any other activity where a
failure to hear surrounding sounds could be dangerous.
Maintenance and service operations are only to be carried out by authorized dealers.
Damage, caused by manual modifications on the product is not subject to warranty.
If this product is used for other purposes than originally intended or if it is not correctly connected, the
product may suffer damage and the guarantee becomes void.
If the headphones are not used for a longer period, please remove the batteries. Dispose of used
batteries properly to save the environment.
S
etting into Operation
Inserting batteries
For active noise canceling you need two 1.5 V micro batteries (type AAA).
To insert the batteries, remove the cover at the left ear-piece.
Insert the batteries as indicated in the battery compartment. Close the compartment again with the
cover.
If the headphones are not used for a longer period, please remove the batteries to prevent
damage in case of battery leakage.
Adjusting the headband
In order to achieve good transmission quality and noise canceling, as well as best possible
comfort, the headband should be adjusted to properly fit your head. You can adjust the headband
using the snap-in locking mechanism.
Connecting the headphones
Connect the headphones via the supplied audio cable to the sound source. If necessary, use the
6.3 mm jack adapter or the 3.5 mm double jack adapter for the in-flight entertainment in an
airplane.
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Nachdruck verboten!
Reproduction prohibited!
are closed, dynamic, ear-enclosing stereo headphones with active
NCH-1000
NCH-1000
Operation
can
are foldable
Power indicator
Adjust the volume at the headphones.
To switch on the active noise canceling function and to attenuate ambient noise set the
ON/OFF switch to ON. The POWER indicator lights up.
After you turn on the power of the headphones, you may hear a slight hiss. This is
operating sound of the noise canceling function, not a malfunction.
When the batteries are going flat, the power indicator starts flashing and goes off. The
active noise canceling is switched off. However, the audio signal continues to be
transmitted.
The
NCH-1000
listen to music.
After operation, switch off the
Cleaning
The headphones should be cleaned from time to time. Please use a soft lint-free and
moistened cloth. Never use alcohol or solvents!
Transport
To transport the headphones in the transport case fold the ear-pieces inwards between
the headband. You can store the accessories in the lid of the case.
Technical Specifications
Transducer type:..............Dynamic
Frequency range: ............30-20,000 Hz
Impedance: .....................32
Power output: ..................100 mW
Noise attenuation:............max. 20 dB
Distortion: ........................<1 %
Cable length: ...................1.2 m
Connection: .....................3.5 mm stereo jack
Power supply: ..................2 x 1.5 V micro (type AAA)
Weight: ............................150 g
Please note: Every information is subject to change without prior notice. 16.09.2008 ©
On/off
can also be used like conventional headphones without batteries to
NCH-1000 to extend battery life.
W
www.omnitronic.com
NCH-1000
Level
14000305_V_1_0.DOC