User Guide Manual
Mic/Line Input Signal Controls
The input signal processor chain allows adjustments to program or microphone audio 
material before input to the main mixer.
Gain Control (GAIN) 
The gain control provides a single long-throw fader with a range of –18dB to +80dB, 
adjustable in 1 dB increments with the fader, or in 0.1dB increments using direct entry 
in the input signal level readout below the fader. The 
peak reading meter holds the peak level for one second, 
displaying it numerically in the box below the meter. The 
default setting is unity gain (0.0dB).
The Phantom Power checkbox, accessible in the 
dialog box, toggles the +48 VDC phantom power on 
and off. Phantom power is typically used to power a 
condenser microphone.
The Mute button, accessible in the dialog box, silences 
the input.
The Polarity button, accessible in the dialog box, 
allows the polarity of the wires connected to the audio 
connectors (+/tip and –/ring) to be flipped to correct for 
miswired connectors. 
Fader Handle
Input
Signal Level 
Readout
DMP64 • Software Control 30










