Since this is a mixing amplifier, the inputs are all mixed together,
the output level of each input is determined by the position of
these controls. The controls of inputs not in use should be set
to the 0 position to avoid excessive noise.
6. Mic 1 input: balanced microphone input on 6.3 mm TRS jack.
This connector is internally hardwired to the rear microphone
1 XLR and DIN5 connector. Use only one of these connectors.
Microphone 1 can have priority over all other inputs (including
the microphone 2 and 3 inputs) by activating the vox circuit.
When the paging contact is used, only the line inputs (music)
will be muted. Caution: do not connect an unbalanced
microphone to the balanced TRS or XLR connector when
phantom power is activated. This will result in a short circuit on
the phantom power supply.