Manual

1073LB Issue 1
Front Panel Controls
Sig led
A two-colour led gives an indication of the incoming signal level:
• Lights green between -25dB and +26dB.
• Lights red at +26dB or higher.
Input Gain
• Runs from -20dB to +10dB in 5dB steps for the Line input;
• Runs from -20dB to -80dB for the Mic input (with an OFF position
between the 50dB and 55dB steps).
If this control is set to a Mic Gain position with phantom power applied and
the knob is turned to a Line Gain setting, the phantom power will
automatically be switched off.
Phantom power will not be available if this control is set to a Line Gain value.
Lo Z
1200ohm (Hi-Z) or 300ohm (Lo-Z) input impedance transformer coupled
stage.
With this button pressed, the led will light yellow and the low impedance will
be applied to the incoming Mic signal.
Ø
Phase button.
Inverts the phase of the selected signal.
FR I/P
This switch selects the input signal from the front of the unit to be used (be it
Mic or Line) rather than the input on the rear of the Lunchbox™ unit.
The led will light green when the Front Input is selected.
Selecting (or de-selecting) FR I/P will also turn off the phantom power if it is
active at the time.
48v led
Applied to both front & rear Mic inputs, the phantom power is applied by
pressing the Trim control.
The +48v led will light red to show when phantom power is in circuit.
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