Page 3
Front Panel
1. CH 1 - CH 4 Gain Controls
Individual gain controls for each of the four input audio channels,
marked 1-4. Gain controls are also known as faders or level controls .
2. Master Gain Control
Controls overall gain.
3. FLAT /Low Cut Filter Switches
Switches for each of the four input channels select between flat
(no filter) and 150 Hz roll off (attenuates audio in frequencies below 150 Hz). Use to reduce wind noise
or other low frequency noise.
4. Pan Selectors
Slide switches for each of the four input channels assign each input to either the
left, right or both audio channels. (Select C position for both channels to place the audio in the center).
5. LED Audio VU Meter
Two rows of LEDs light in progression to indicate level for both right and left
audio channels. Use VU Meter Intensity Switch on the underside of the unit to select HIGH for high
visibility outdoors or select LOW to conserve battery life.
6. Other LED Indicators
LIM Output Limiter
LIM lights when limiter is triggered by audio level beyond a specified threshold
which has been preset at the factory. The limiters compress the audio when this threshold is reached
to prevent overload. See instructions for adjusting the threshold on page 7.
Power EXT
lights automatically when external power is being used.
Power BAT
lights automatically when battery power is being used.
Low Battery Warning
BAT flashes when battery needs to be replaced. Prior to this BAT will flash on
audio peaks to offer early warning.
NOTE:
The unit is reverse voltage protected. No permanent damage can be sustained from reverse
voltage.
7. Reference Tone
Switch from MIX to TONE to generate 1KHz reference tone.
8. Slate
Momentary push button activates slate mic located on front panel. Push and hold in while
verbally identifying the audio take. Release to deactivate slate mic and continue with the take.
9. Head Phone Jack
1/8” jack for operator head phone monitoring. (Note that there is a separate
XLR head phone jack for boom operator on the right panel.) Turn down headphone level control
before connecting or putting on headphones.
10. Head Phone Level Control
Adjusts head phone volume for both mixer operator and boom mic
operator. Reduce volume before putting on headphones to protect your hearing. Use at lowest
practical level to protect your hearing.
11. Tape Return Selector
Select TAPE RETURN to monitor audio from video camera, or other
device plugged into the TAPE RTN IN on right side. Select MIX to monitor mixer output.
12. Strap Ear
Adjustable shoulder strap (included) attaches to these metal ears. These may also
protect the front panel from damage.