
page 4 302 Compact Production Mixer
User Guide and Technical Information
FRONT PANEL DESCRIPTIONS
3
45
6
7
8
910
14
211 12
131
15 16 1718
1. Gain (Trim)
The coarse gain control. Sets the input sensitivity
so that the Fader can be used for fine gain control
with the channel fader.
2. Fader
The primary control for input adjusting level
during operation.
3. Pan Switch
Assigns the input channel to the output bus. Left-
only, Center (equal left and right), or Right-only.
4. Peak LED
When illuminated, indicates that the channel is
very near overload.
5. Limiter LED
When illuminated, indicates that the channel
limiter is operating and reducing channel gain to
prevent overload.
6. High-Pass Filter (Low Cut)
Three-position switch engages the high-pass fil-
ter. Used to reduce excessive low frequencies. 12
dB per octave at 80 Hz or 160 Hz. Center position
is off.
7. Polarity Reverse Switch – Input 2
When engaged, the polarity of Input 2 is reverse
(180° out-of-phase) with respect to inputs 1 and
3. Useful to flip the stereo image with MS stereo.
8. Stereo Link LED (Inputs 1 & 2)
Indicates that inputs 1 and 2 are linked as a
stereo pair. Controlled in the Setup Menu. In L/R
stereo link input 2 Fader controls overall stereo
level. When in MS position input 1 Fader con-
trols Mid, input 2 Fader controls the amount of
stereo (Side) information.
9. Limiter Switch
Activates both input and output limiters. ON
is dual-mono limiter operation, LINK is stereo
operation. Output limiter threshold controlled in
Setup Menu.
10. Output Meter
Sunlight-viewable, 20-segment LED meter. Cali-
brated in dBu when peak-reading.
11. Meter Brightness
Controls the brightness of the LED output meter.
Each push selects among four brightness levels.
12. Meter Ballistics
Toggles among the available meter ballistic
options: VU-only, peak-only, combo peak/VU,
peak-hold/VU.
13. Slate Mic/Tone Switch
Two-position switch activates the slate micro-
phone in the left (momentary) position, or the
tone oscillator in the right (latched) position. Ad-
ditional options available in the Setup Menu.
14. Headphone Selector Switch
Sets the signal source sent to headphones. Op-
tions include: input PFL 1, 2, 3; left output bus;
right output bus; Mono (summed left and right);
STereo master; RTN - stereo monitor return; MS-
mono; MS-stereo; RTN-MS.
15. Headphone Volume
Adjusts the overall volume of the headphones.
NOTE: the headphone output is capable of
ear-damaging levels. Take care when adjusting
among signal sources.
16. Headphone LED
Indicates overload of the headphone circuit and
RTN circuit.
17. Power Switch/LED
Three-position switch selects between internal
battery power or external DC sources. Power
LED illuminates when power is on. LED flashes
when voltage reaches low limit (see Powering).
18. Battery Check Button
Hold to show the internal and external battery
levels on the output meter. Battery level remains
for two seconds after button release.