LD Systems U305.1 IEM Wireless In-Ear Monitoring System with Earphones (514 to 542 MHz) - Manual (Page 5)

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1 POWER
On/off switch. Press and hold this button for a duration of approx. 1 second in order to turn the device on or off.
2 CHANNEL DISPLAY
Illuminated LC display to show the radio channel.
3 CHANNEL + / -
Switch to set the radio channel 1 to 12. In order to establish a radio connection between the transmitter and receiver, the radio
frequency of both devices must match.
4 LEFT / RIGHT
Knob to adjust the input signal level of the left and right audio channels. In stereo mode , the signals of the left and right
channel should have the same level in order to have a homogeneous stereo signal in the pocket receiver. Use the equalizer in
mono mode to create a custom mix of the left and right channels, meaning the volume of both channels can be set as needed
(example: left channel = mixer mono sum, right channel = solo vocals).
5 LEVEL DISPLAY L / R
5 segment LED chain to display the audio input signal level. For an optimum signal-to-noise ratio, level the left and right signals
as high as possible, but make sure that the red PEAK LED does not light up, or only briefly, to avoid signal distortion.
6 STEREO / MONO
Switch to set the operating mode.
STEREO: A pending stereo signal is transmitted to the pocket receiver in stereo.
MONO: Pending audio signals are summed internally and transmitted to the pocket receiver in mono.
7 DC CONNECTOR
Low-voltage connector to supply power to the device. Please use only the provided power adapter.
CONNECTIONS, CONTROL AND DISPLAY ELEMENTS