Sennheiser 140 manual Under-modulationaudio signal too low, Over-modulationaudio signal too high

headphones automatically turn off. By pressing the TUNE button, the headphones can be turned on again.

Self-learning automatic level control with memory function

The transmitter is equipped with an automatic level control which ensures that the headphones always receive an optimum signal. The level is continuously adjusted during operation and remains stored as long as the transmitter is connected to the mains.

Under-modulation (audio signal too low)

With under-modulation, the yellow LED “INPUT LEVEL” flashes slowly. If this happens, gradually increase the volume of the sound source. If the audio signal remains too weak, an optimum trans- mission is not possible. It could be that the transmitter is deactivated after some time.

Over-modulation (audio signal too high)

With over-modulation, the yellow LED “INPUT LEVEL” flashes rapidly. If this happens, gradually reduce the volume of the sound source.

Dynamic compression system (Fig. 8)

The RS 140 system is equipped with a switchable dynamic compression system. This system reproduces soft passages louder and decreases loud sounds. To activate the dynamic compression system, move the slide switch “COMPRESSION” on the transmitter to the right. The yellow LED “COMPRESSION” lights up. If the LED flashes slowly, gradually increase the volume of the sound source (see “Under-modulation”).

Automatic noise reduction

In addition, the transmitter features a “Noise Gate” function, which reduces hissing noise when no audio signal is transmitted (e.g. during pauses).

ENGLISH

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