CHANNEL 1
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Volume control for channel 1 with white SIG (signal) and red CLIP LED. As soon as there is an audio signal
on channel 1 and volume control 1 is set to the desired volume, the white signal LED lights up. If the red
CLIP LED lights up, the signal may be distorted. In this case, reduce the channel volume control (control
1). Should the audio signal still be distorted, please check the corresponding input level on the back of
the amplifier (CLIP LED/GAIN).
CHANNEL 2
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Volume control for channel 2 with white SIG (signal) and red CLIP LED. As soon as there is an audio
signal on channel 2 and volume control 2 is set to the desired volume, the white signal LED lights up. If
the red CLIP LED lights up, the signal may be distorted. In this case, reduce the channel volume (control
2). Should the audio signal still be distorted, please check the corresponding input level on the back of
the amplifier (CLIP LED/GAIN).
MUSIC
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Volume control for MUSIC channel with white SIG (signal) and red CLIP LED. As soon as there is an audio
signal on the MUSIC channel and the corresponding volume control is set to the desired volume, the
white signal LED lights up. If the red CLIP LED lights up, the signal may be distorted. In this case, reduce
the output level of the auxiliary device or the channel volume (MUSIC control).
13
Touch-sensitive button for selecting the audio source of the MUSIC channel (Bluetooth module, input
with CD symbol, input with cable symbol). To switch over the signal source, press the button for at least
half a second. Activation of the individual signal sources takes place clockwise.
14
Touch-sensitive button for activating the Bluetooth connection (pairing). To connect a Bluetooth auxi-
liary device (e.g. Smartphone, tablet, etc.) to the Bluetooth module of the device, select the Bluetooth
signal source (see element 13). If no auxiliary device is connected to the Bluetooth module, this is
indicated by the Bluetooth symbol flashing slowly. In this mode, the LD PRE ST1 is not visible to external
auxiliary devices. Only previously connected auxiliary devices can be connected directly to the LD PRE
ST1 without activating pairing mode. In order to prevent an unwanted or unexpected connection, this
connection is not established automatically, but must be manually established in the Bluetooth menu
of the auxiliary device (select LD PRE ST1).
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