C44 SERIES CONTROLS
CHANNEL FEATURES
1. 1/4” LINE INPUTS
The line connectors are for connecting balanced and unbal-
anced instruments and line level sources such as drum
machines, keyboards, ETC.
2. XLR MIC INPUTS
The balanced Mic inputs are for connecting microphones that
use XLR connections. Both the LINE and XLR MIC inputs can
be used simultaneously.
3. CHANNEL INSERT/CHANNEL DIRECT OUT
To insert channel effects, compressor, etc. use a 1/4” TRS (Tip
Ring Sleeve) cable (see INSERTS AND DIRECT OUT illustration
on page 5 for TRS details). To achieve a direct out from the chan-
nel, insert a standard 1/4” cable to the first “click” (1/2 insert).
4. GAIN
The GAIN controls the input level for the channel. If the GAIN
is set too high, the PEAK LED will flash and distortion may
occur. Decrease the amount of GAIN until the PEAK LED does
not flash. It is important that the gain control should be kept
next to the PEAK LED flash point to maintain the lowest noise
of the channel. You can use the channel PFL switch to mon-
itor the channel input level and use the meters to adjust the
GAIN control to 0dB. This will give you a good reference point
where the GAIN control should be set.
5. LOW CUT SWITCH
A 75 Hz LOW CUT filter helps eliminate unwanted low fre-
quencies. Great for reducing “boom” noise from mic stands
or from acoustic/electric guitars. Turning up the LOW EQ when
using this filter can help create a punchier bass response.
6. ACTIVE 3 BAND EQ WITH MID SWEEP
The C44 SERIES mixers provide studio EQ. The ±15 dB boost
or cut gives an overall 30 dB range for powerful EQ control.
The active circuits deliver deep bass from the 20-80 Hz LOW
control. The MID control works at 100Hz to 5kHz, depend-
ing on the MID FREQ control. The HI control functions at 11-
20k for crisp highs.
Start out with all tone controls at their center “zero” posi-
tion. Determine which position your MID FREQ sounds best,
then cut or boost your HI, MID, and LOW frequencies as
needed. If you are trying to mic instruments such as acoustic
guitar or drums, try various mics and mic placement before
adjusting your tone controls. A typical setting may be: HI +6,
MID -4 (MID FREQ set at 700Hz), and LOW +4. Don’t be afraid
to push the HI and LOW controls to get good presence and
depth while reducing the MIDs to clean up your sound. This
is one of the keys to great sound.
7. MID SWEEP
This control allows you to select which frequency (from 100Hz
to 5kHz) that the MID control will boost or cut. Instruments
and singers have various tonal qualities. By adjusting the MID
FREQ, you can select the exact frequency that will best com-
plement these various inputs. 700Hz is a recommended set-
ting for the MID FREQ control for guitar and vocals.
8. MONITOR 1 THRU 4 SEND CONTROLS
The channel MONITOR controls allow you to create four inde-
pendent monitor mixes. The MONITOR signals (pre-EQ, pre
fader) are routed to the master MON 1, 2, 3 and 4 controls
(#21) respectively before going to the output connectors (#36).
9. EFF 1 & EFF 2 SEND CONTROLS
The EFF 1 or EFF 2 control sends signal (post EQ, post fader)
from the channel to the EFFECTS 1 or EFFECTS 2 internal
processors (#18) and to the EFF 1 or EFF 2 jacks (#33).
10. PAN CONTROL
Each channel’s PAN control allows stereo imaging by panning
Left or Right during recordings or live performances. The PAN
control also works for the sub-mix groups. A center posi-
tion will send a channel’s signal to a pair of sub-group faders
(1-2, 3-4 when assigned). By panning hard left, the signal is
routed to only sub-group fader 1 or 3 when assigned. Panning
hard right routes the signal to sub-mix fader 2 or 4. Dual ele-
ment pan controls provide 15dB greater separation than
standard pan controls.
11. CHANNEL SIGNAL GREEN LED
The SIGNAL LED is pre-fader and post EQ. This LED helps the
operator verify that the channel is receiving a signal from the
mic or instrument inputs even when the channel fader is off.
12. CHANNEL RED PEAK LED
This peak indicator is pre-fader and post EQ. If the PEAK LED
flashes, the channel needs a reduction with the GAIN control
(#4)to prevent distortion. A “solid” lit PEAK LED indicates that
the channel has been MUTED.
13. CHANNEL MUTE SWITCH
Use the MUTE switch to kill the channel. This feature saves
having to reset your faders and monitor sends.
14. CHANNEL PFL SWITCH
This switch allows the operator to listen to a channel (pre
fader listen) in the headphone mix to set tone and gain levels
as well as see the channel at the LED meter output (#29).
C844, C1644(P), C2444 & C3244 4-BUS MIXERS
QUICK START UP
If you’re like most new owners, you’re probably in a hurry
to plug your mixer in and use it. Here are some brief instruc-
tions to get you going quickly. With the mixer unplugged and
the unit turned off, complete the following procedures:
1. CONNECTING AC POWER TO YOUR MIXER
• The mixer can be used with 120 or 240VAC (it automati-
cally switches internally except for C1644P)
• Use only a grounded (3 prong) power outlet to prevent a
shock hazard. This gives the quietest grounding for your mixer.
2. CONNECTING INPUTS TO YOUR MIXER
• For low level balanced devices such as microphones, plug
into the balanced MIC inputs using a shielded microphone
cable with XLR connectors.
• For high level balanced or unbalanced devices such as
instruments & keyboards, plug into the LINE input jacks using
a shielded cable with 1/4” phone plugs. Adjust the GAIN knob
for the mic or line input being used.
3. TURNING YOUR MIXER ON
• Adjust all channel FADERS and master LEVEL controls to
their OFF
positions
• Adjust all channel’s HI, MID, and BASS controls and the
two master 9 Band GRAPHICS to their center
positions.
• Adjust the Channel “PAN” controls to their center positions.
• Turn the mixer on by the rear panel POWER SWITCH
and watch for the POWER LED. Your mixer is now ready
to operate.
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