Manual

1. POWER:

2. MIC GAIN (stepped, 12-position switch): clockwise rotation yields an increase in input signal amplitude,
counterclockwise rotation yields a decrease in input signal amplitude
3. 48v:
4. PHASE ( O ): engage to adjust input signal polarity by 180°, disengage to leave input signal polarity
unchanged
5. OUTPUT LEVEL: clockwise rotation yields less attenuation, counterclockwise rotation yields more

needed so as not to saturate the input transformer)
6. DI: engage to select front panel TS jack as input source, disengage to select rear panel XLR jack as input
source
FRONT
1. OUTPUT: balanced, line-level TRS output
2. INPUT: 
3. GND: internal chassis ground
4. POWER: 
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B173 | User Manual 4