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5.3 MIC1/LINE1 change-over switch
The pushbutton-switch on the back of the loop driver (see figure 4.3: 16) switches the
LINE1 input from LINE-level to MIC1 microphone level in the depressed position.
Please note that this activates 48V phantom power.
ATTENTION:
If you connect an unbalanced audio source, do not press the MIC1/LINE1 change-over
switch, as this may damage the audio source!
5.4 MLC-level regulator (Metal Loss Control)
This control is used to compensate the frequency response due to metal influence. If there
are metal objects close to the ring loop line, this can lead to a reduction of the amplifier
power by dissipating the generated magnetic field.
English 19
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