Inter-M MA-106A - Manual (Page 10)

PUBLIC ADDRESS AMPLIFIER
7 MA-106A
11. INPUT 1 GAIN CONTROL
Input 1 gain trim range is adjustable from 0dB to +50dB. A typical line level input setting would be close to
0dB. A typical Microphone input setting would be closer to +50dB. This control is also used to fine tune the
signal threshold that will trigger the muting of input 2 or inputs 2 and 3 if linked.
12. INPUT 1 CONNECTOR
A 3.5mm Euroblock connector is used for input 1, and can be used as a mic level or line level input. As a
balanced line input, it can connect to a telephone paging system instead of a microphone. If the input signal
is unbalanced, be sure to ground the unused (-) input pin.
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