2
3
PEAK
PEAK
5
5
7
7
3
3
0
0
1
10
2
10
1
1.Input Gain Control: For best performance, adjust each Input
Gain Control so the associated Input Peak LED illuminates red
only on the loudest signal peaks.
2.Input Low-Cut Filter Switch: Provides low–frequency rolloff to
reduce wind noise and rumble. When using the filter, the
frequency response is down 7 dB at 150 Hz. Rolloff slope is 6 dB
per octave.
3.Input Peak LED: Illuminates at 6 dB below clipping.
4.Limiter Switch: Activates a fast–acting, peak–responding limit-
er optimized for speech. An internal modification can provide a
slower release time for music signals (see DIP Switches).
5.Output Peak/Limiter Bi–Color LED:
Red = output signal at +12 dBm
(6 dB below clipping)
Green = output signal at limiter threshold
(when limiter is on)
6.Output Level (VU) Meter: Meter response approximates true
VU characteristics (about 300 ms rise and fall, 1% to 5% over-
shoot). For a slower response, see Internal Modifiable Func-
tions. 0 VU is switchable between +4 and +8 dBm (see DIP
Switches). When using batteries, use the BATT CHECK switch
to illuminate the meter.
7.1 kHz Tone Oscillator Switch: Sends a 1 kHz tone to all outputs
and mutes all inputs. The MASTER control adjusts tone level.
2
FRONT PANEL CONTROLS AND INDICATORS
PEAK
PEAK
PEAK
5
5
7
7
3
3
3
0
0
0
3
10
4
10
5
FRONT PANEL CONTROLS AND INDICATORS
5
6
4
LIMITER
PEAK
OFF ON
PEAK
5
5
7
7
3
-20
-
0
+12
6
10
10
MASTER
13
FIGURE 1
8.Battery Check Button: Press and hold to show battery level on
the VU meter. Press once to illuminate the VU meter for 10 sec-
onds, or set DIP switch 6 to toggle the meter light (see DIP
Switches).
9.Power–On/Off Switch: Turns the mixer on and off.
10.Power–On LED:
Flashing = low batteries (about 30 minutes of
11.Dual function control knob:
Headphones Gain Control: Rotate to adjust headphone
level.
Pull/Monitor Switch: When using headphones, pull out to lis-
ten to audio from the MONITOR IN jack. Add attenuated pro-
gram signal using DIP switch 4 (see DIP Switches).
The headphones circuit can produce high volume levels
that can damage the user's hearing. Make sure head-
phone volume setting (PHONES) is low (full CCW) before
putting headphones on.
12.Headphones Outputs: Stereo 1/4" and 3.5 mm phone jacks.
13.Master Gain Control: Sets mixer output gain. Set to 0 dB posi-
tion for unity gain.
8
7
1kHz TONE
  Â
OFF ON
VU
    Â
  Â
0
M367
Green = power on
operation remaining)
WARNING
9
10
POWER
BATT
ON
CHECK
PHONES
PULL/MONITOR
12
11