Sennheiser Set 900 Instructions for use - Page 32

Additional technical information ̈ Use a screwdriver to turn the treble boost control H the left or right until the sound can be heard very well. The position "0" corresponds to a minimum boost, the position "MAX" corresponds to a maximum boost, and the control is factory- H preset to the medium position. Function of the treble boost control By means of the transmitter's steplessly adjustable treble boost control the audio signal is boosted as shown in the diagram. The treble boost control allows you to select one of the curves shown in the diagram below. dB 20 "MAX" 10 0.1 Factory-preset setting "0" 1 10 kHz Changing the operating mode The transmitter can be set to a different operating mode. This is useful when the sound of your sound source is very low and the transmitter therefore does not always switch on automatically. E D ̈ Press the "speech intelligibility" button D for approx. 5 seconds. red: green: A The indicator E goes off. The charging indicator for the spare rechargeable battery A flashes several times: operating mode 2 operating mode 1 (factory-preset) If the operating mode was changed successfully, the charging indicator for the spare rechargeable A goes off and the indicator E lights up again. 28