Operation - Pulse CMX-DSP Series User Manual

If the internal DSP effects are not required, a send can be connected from the "EFFECT" jack
output to and external effect unit, whereby the EFF channel controls act as individual level
controls to the EFFECT output (same as for AUX output) Overall effect send level is governed
by the master EFFECT level control.
With all faders down, connect the supplied AC adapter to the 12Vac input an
d to the mains supply (ensure correct supply voltage) – the power LED will illuminate (if
phantom power is selected, this LED should light also)
Checking
Test each channel's gain level by making the loudest expected sound into it and increasing the
GAIN control until the red PEAK LED starts to light. Then back the GAIN control off slightly
until the PEAK LED hardly lights at all.
Test the main mix output by increasing the MAIN master fader and selected channel faders
whilst making sound through the channel(s) – the L + R output LED ladders should begin to
show the output as it varies up and down.
Connecting a pair of headphones to the PHONES stereo 6.3mm jack is a good way of checking
the mix output, remembering to gradually increase the PHONES level control.
Turn down all faders and then switch power on to connected equipment (amplifier last in line)
and increase volume levels. Gradually increase MAIN and channel faders again and the sound
should be heard through the speakers or be indicated on the recording equipment.

Operation

Mono channels have a COMP control which varies the amount of audio compression applied to
the signal. Fully down (anti-clockwise) gives no compression and fully up (clockwise) gives
maximum compression to the signal, making quieter sounds louder and louder sounds quieter
whilst boosting the signal. This limits the dynamic differences in a signal and is especially
useful for vocals and some instruments where the sound level can vary greatly.
Each channel has a 3-band EQ (LOW/MID/HIGH), which can be used to balance the mix of
frequencies and emphasise certain aural characteristics in the signal. Adjust these as required,
noting that and overall increase may require an equivalent reduction of the GAIN control to
compensate (otherwise clipping may occur from EQ boost).
Use the PAN control to position the channel input either to the left or right side of the stereo
field. This can be useful to help separate and define sounds within a mix but be aware that
extreme settings can be counter-productive by removing the channel from certain listening
positions.
Use the AUX control to feed the correct amount of the channel signal to the AUX output. This
routing is "Pre-fader" and is independent from the channel fader setting.
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