APart-Audio MA246, Руководство пользователя

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8
Microphone connections
Status dipswitches: set to * when using a microphone with a
push button(s) connected to the paging contact(s). Set to mix
when you want the speech to be mixed with the music: this is
usefull for mics without pushbuttons or switches.
Phantom power: set to on if your microphone needs phantom power (such as condenser mics).
Voltage supplied is 18 VDC.
Signal input: balanced input on euroblock. This connector accepts balanced and unbalanced mic/line
signals. For use with unbalanced mics or line level signals, connect the source GND to both GND and
-, connect the unbalanced hot wire to +. This can be usefull when connecting the receiver output from a
wireless microphone. Connection example using an unbalanced source:
Alternatively, you can connect the unbalanced signal ground to the – connector and the ‘hot’ wire to the +
connector. By leaving the ground connection unused, you can avoid a lot of ground loop problems (such
as hum, excessive noise…)
Unbalanced MIC/LINE signal connection
Unbalanced MIC/LINE signal connection