PRO SM-1
FEATURES AND OPERATING INSTRUCTIONS...
Please read this entire manual before begining operation of the
PRO SM-1 as there are new features you
will need to read about to use properly. This mixer can be 10” rack-mounted or used as a free-standing unit.
INSTALLATION AND OPERATION
Study the Connections Diagram on page 13. First, connect all stereo input sources. Next connect your microphone(s)
and monitor headphones. Make sure all faders are at "zero" and the unit is off. Connect the stereo outputs to the power
amplifier(s) and/or audio sources. Using the AC adpater plug the power source for the PRO SM-1 into the unit. Now you
are ready to switch it on.
CHANNEL CONTROL FEATURES
1. Rotatable Input Toggle Switches select which
source will be active to that channel based on what you
have connected to the rear panel input section.
To rotate or replace the toggle
a. Turn off all power!
b. Remove 3 lower panel fader knobs
c. Unscrew 4 lower front panel screws found on
mixers sides and remove panel
d. Remove toggle switch retaining screws
e. To rotate, lift toggle and place in it’s new position.
If you are replacing the toggle switch, unplug the
old unit and plug in the new one.
f. Screw toggle back into place.
2. PFL Meters are 12-segment individual displays for the
input level of the corresponding channe. This allows the
DJ to accurately match channel levels with the Pre-Fader
gain controls before mixing them together. The idea is to
properly match PFL inputs, not the input with the stereo
output meter!
3. PFL Gain Controls are for accurately matching input
levels of the channels.
4. Treble, Middle, and Bass Controls are for setting
appropriate equalized levels for the music you are playing.
When turned all the way left they “CUT” the signal of the
associated frequency range by -30dB for special effects
mixing.
5. Balance Controls are for adjusting the stereo signals
intensity from right to left. Moving the slider to the left will
allow only the left side to be heard, moving the slider to the
right will allow only the right side to be heard, leaving it in
the middle creates an even stereo balance. The high-
resolution linear faders are great for creating quick effects.
6. The Active Channel Faders are highly reliable, long-
life, Alps™ optical faders. These control individual source
levels in the mix after processing by the input gain and
channel EQ.
Note: The input faders are user replaceable in the
unlikely case of failure. Simply unscrew the four lower
faceplate screws and remove the faceplate. Then
unscrew the 2 screws which hold the fader in place, lift
it out and disconnect it’s cable. Re-attach the new
fader and screw the face plate back onto the unit.
You’re back in business!
7. The Channel Contour Control slide switch allows
the DJ to customize the way the Channel fader affects the
channel signal as it is used.
30dB creates an even increase in volume as the
fader is moved upward
20dB creates a more gradual volume increase
6dB creates a very slow change at first and then very
rapid at the top of the fader
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