SSM-1750 4-Channel Stereo Audio Mixer
(320-3008)                 Special Controls           Faxback Doc. # 45074

Using The Special Controls

Using the Tone Controls

Your mixer has a set of tone controls for each microphone and for channels
1-4.

You can tailor the high, middle, and low frequency sounds for each.

For normal sound, leave BASS, MID, and HIGH set to 0.

Rotate HIGH toward +10 to increase or toward -10 to decrease the high
frequency sounds.

Rotate MID toward +10 to increase or toward -10 to decrease the middle
frequency sounds.

Rotate BASS toward +10 to increase or toward -10 to decrease the low
frequency sounds.

Using Gain

Since the input levels of each sound source are different the GAIN controls
let you fine tune each selected input's volume.  Rotate the desired GAIN
control toward MAX to increase the volume and to MIN to reduce it.

NOTE: Generally, we recommend you not adjust the GAIN controls after you
      have preset the inputs.  Some sound imbalance could occur.

Setting the Sound Balance

The BALANCE control lets you adjust the sound balance between the left and
right speakers. If your speakers are properly positioned and your listening
area is centered between the speakers, the center setting of the control is
usually the best.

If the sound seems to be louder from one speaker, adjust BALANCE until the
sound seems to be coming from a point midway between the speakers.

Using A Microphone

Using an XLR Microphone

To mix the microphone connected to the XLR jack with other audio input
sources, adjust DJ MIC LEVEL to increase or decrease the microphone volume
without affecting the volume of the other inputs.

Set DJ MIC LEVEL to 0 when you are not using the DJ microphone.  Or, if the
microphone has an ON/OFF control, set it to OFF and leave DJ MIC LEVEL at
its preset position.

Using the AUX Microphone

To mix the microphone connected to the AUX MIC jack with other audio input
sources, set AUX MIC/LINE to MIC.  Adjust AUX LEVEL to increase or decrease
the microphone volume without affecting the volume of the other inputs.

When you are not using the AUX microphone, set AUX MIC/LINE to LINE.  This
lets you mix the output from the device connected to AUX LINE MONO jacks.

Using Talk Over

To use the microphone and reduce other audio inputs so the microphone can
be heard more clearly, set TALK OVER to ON.

To turn off talk over, SET TALK OVER to OFF. All the audio inputs including
DG MIC and AUX MIC play at the same output level, and the background music
volume is not reduced.

Using MUTE LEVEL

To increase background music when using TALK OVER, rotate MUTE LEVEL toward
MIN.  To reduce background music, rotate it toward MAX.

Using PAN

To play either microphone or the AUX LINE output on the left or right
channel, adjust the appropriate PAN control.  Set it to L to play through
the left channel, to R to play through the right channel, or to any other
position between L and R to play through both channels.

Using Sound Effects

There are six pre-programmed sound effects for your mixing selection - a hi
hat close, a rim shot, a cow bell, a cymbal, a bass drum and a laser drum.

To play a sound effect, repeatedly press or hold down the desired SOUND
EFFECT button.

Rotate SOUND EFFECT LEVEL to increase and decrease the sound effect volume.

Using Echo Effects

Not only does the SSM-1750 play echo effects, but you can also adjust the
echo delay, the number of echo repeats, and the echo's volume.

The echo is applied to the sound before all the inputs are mixed.

Set ECHO to MIC to turn on the echo effect for the microphones and the AUX
LINE input.

Set ECHO to MUSIC to turn on the echo effect for Channels 1, 2, 3 and 4
outputs.

To turn off the echo effect, set ECHO to OFF.

Adjusting the Echo Delay

The ECHO DELAY control lets you adjust the time delay for an echo. Set ECHO
DELAY to 0 for a minimum time delay and to 10 for a maximum time delay.

Adjusting the Echo Repeat

The ECHO REPEAT control lets you control the length of time a tone is
repeated (reverberation).  Set ECHO REPEAT to 10 for the longest time
repeat and to 0 for the shortest.

Adjusting the Echo Volume

The ECHO LEVEL control lets you adjust the output level of the echo effect.
Rotate ECHO LEVEL toward 10 to raise the echo level and toward 0 to lower
it.

Using Sound Effect Devices

Playing the Signal from the Sound Effect Device

To play signals from a device connected to the EFFECT jacks set the RECEIVE
switch to ON.  When you are not using the connected inputs, set the RECEIVE
switch to OFF.

The RECEIVE rotator knob lets you adjust the volume of the input connected
to the EFFECT jacks without changing the sound effect device's volume.
Rotate RECEIVE toward 10 to raise the volume and toward 0 to lower it.

Playing Input Signals Through the Sound Effect Device

You can play inputs selected by the channel selectors, DJ MIC, or AUX
through other sound effect devices connected to the mixer, such as an echo
reverb or a digital sampler processor, and control playback through the
mixer.  To play selected inputs through the sound effect device, set SEND
ASSIGN to the selected input.

The SEND control lets you adjust the volume of the selected sound to the
sound effect device without changing the device's volume.  Rotate SEND
toward 10 to raise the volume and toward 0 to lower it.

(br/EB 11/3/97)