SSM-50 2-Channel Stereo DJ Mixer
(320-3005) Operation Faxback Doc. # 40122
Set the output devices (receiver/amplifier and tape deck) volume levels to
minimum and turn them on.
Press POWER to turn on the mixer. The red power indicator lights.
Turn on the input sources you want to mix.
Using the mixer requires two basic operations:
Presetting the input signal levels
Mixing the audio input sources
After you finish mixing, turn off the input and output audio devices
(amplifiers, tape decks, and so on), then press POWER to turn off the
mixer. The red power indicator turns off.
PRESETTING THE INPUT SIGNAL LEVELS
To avoid accidentally overdriving a channel or prematurely mixing in an
audio input source, always start with the following settings:
CH 1 and CH 2 START/MUTE set to MUTE
MIC LEVEL, CUE LEVEL, TREBLE, BASS, and MASTER set to 0
CH 1 and CH 2 volume slide controls set to 0
Rotate MASTER clockwise and temporarily set it to about the 5th marker.
Note: The MASTER volume control adjusts the overall volume of CH 1, CH 2,
and the microphone.
The mixer uses two volume unit (VU) meters to indicate the total stereo
output signal level. For the best results, each input signal level should
normally be set so the VU meters never move into the red range (0 or above).
Distortion is likely to occur on audio peaks if the meter moves into the
red range.
Presetting the Microphone
1. If your microphone has an on/off control, set it to ON.
2. Set MIC OFF/ON/TALKOVER/ to ON.
3. While continuously talking, adjust MIC LEVEL until you get a reading
of up to 0 on both VU meters.
4. Set MIC OFF/ON/TALKOVER to OFF.
Presetting the Channel Input Sources
Before you mix channel 1 and channel 2, you must preset the input signal
level for each input source (up to four sources).
Notes:
While you adjust the input signal levels for channels 1 and 2, either
use the headphones or turn up the receiver/amplifier's volume to a
comfortable listening level (not necessarily the final usable level).
Do not play a quiet portion of music while you adjust the volume level
for channels 1 and 2, otherwise the volume levels will be overdriven
during the loud portions of the track.
1. To preset one or both channel 1 input sources, slide CROSS FADER to CH
1, then set CH1 START/MUTE to START.
Note: The CH 1 and CH 2 START/MUTE switches let you quickly turn on/off
CH 1, CH 2, or both.
3. Start playback of the selected input source.
4. Slowly slide up the CH 1 volume level slide control until you get a
reading of up to 0 on both VU meters.
Important: Write down or remember the CH 1 volume level slide control's
setting for the selected audio source, so each time you
want to mix that source you can slide the CH 1 volume level
slide control to the correct setting.
Note: If it was necessary to set the CH 1 volume level slide control
all the way to 10 in order to get a reading of up to 0 on the
VU meter, then slide CH 1 down to about 8 and rotate MASTER
clockwise until you get the reading of 0 on the VU meters.
5. Stop playback of the selected input source.
6. To preset the LINE 1 input source, set PHONE 1/LINE 1 to LINE 1. Then
repeat steps 3-5.
Note: If you have to readjust MASTER when performing step 4, remember
that this affects the level of the previously preset input
sources. You must readjust those sources until you get a reading
of up to 0 on the VU meters for each.
7. After you finish presetting the channel 1 input sources, set CH 1
START/MUTE to MUTE.
8. To preset one or both channel 2 input sources, slide CROSS FADER to
CH 2, then set CH 2 START/MUTE to START.
9. To preset the PHONO 2 input source, set PHONO 2/LINE 2 to PHONO 2.
10. Start playback of the selected input source.
11. Slowly slide up the CH 2 volume level slide control until you get a
reading of up to 0 on both VU meters.
Important: Write down or remember the CH 2 volume level slide
control's setting for the selected audio source, so each
time you want to mix that source you can slide the CH 2
volume level slide control to the correct setting.
Note: If it was necessary to set the CH 2 volume level slide control
all the way to 10 in order to get a reading of up to 0 on the
VU meter, then slide CH 2 down to about 8 and rotate MASTER
clockwise until you get the reading of up to 0 on the VU
meters.
12. Stop playback of the selected input source.
13. To preset the LINE 2 input source, set PHONO 2/LINE 2 to LINE 2.
Then repeat steps 10-12.
Note: If you have to readjust MASTER when performing step 11,
remember that this affects the level of all previously preset
input sources (PHONO 1, both channel input sources, and the
microphone). You must readjust those sources until you get a
reading of up to 0 on the VU meters for each.
14. After you finish presetting the channel 2 input sources, set CH 2
START/MUTE to MUTE.
Checking the Sound
1. Select one of the input sources, set its START/MUTE switch to START,
then start playback of the selected source.
2. Set CROSS FADER to the corresponding channel (CH 1 or CH 2).
3. Set the CH 1 or CH 2 volume level slide control to the position you
determined during preset. The VU meters should show a reading of up
to 0 dB.
4. Turn up the receiver/amplifier's volume until it reaches the desired
level for the location or event where the mixer will be used (this can
vary). Remember this volume level so you can return to it after you
turn the receiver/amplifier down or off.
5. Adjust BASS and TREBLE to get the desired sound.
Notes:
If adjusting BASS and TREBLE causes the VU meters to show a reading
that exceeds 0 dB, rotate MASTER counterclockwise until the reading
returns to 0.
Do not adjust MASTER once the BASS and TREBLE settings are completed.
6. Set the START/MUTE switch (used in step 1) to MUTE.
7. Stop playback of the selected input source.
MIXING THE INPUTS
You can connect input signals from up to four audio sources, select any
two, then mix them so only one or both play through your sound system.
Mixing requires three operations:
Playing one input source
Monitoring the next input source
Switching to the next input source
You can play either channel first. The following sections assume that the
first source you want to play is on channel 1 and the next source is on
channel 2. Once you know how to do this, you can go back and forth
between the two channels.
Playing One Input Source
1. Set CH 1 START/MUTE to START, then set CROSS FADER to CH 1.
2. Set PHONO 1/LINE 1 to the preset input source you want to play first
through your sound system.
3. Make sure the CH 1 volume level slide control is set to the correct
preset position.
4. Start playback of the input source.
Monitoring the Next Input Source
Monitoring the next input source's signal level requires selecting the
input source that is not currently playing, finding the desired section you
want to mix, then adjusting that source's sound level so it matches the
volume level of the currently playing source.
1. Put on the headphones so you can listen to one channel through the
headphones while the other channel is playing through the sound system.
2. Set CH 2 START/MUTE to START.
3. Set CUE CH 1/CH 2 to CH 2.
4. Set PHONO 2/LINE 2 to the input source you want to monitor.
5. Start playback of the input source you want to play next through your
sound system.
6. If necessary:
Adjust CUE LEVEL to a comfortable listening level.
Adjust the CH 2 volume slide control to the correct preset position.
7. Stop or pause the input source.
Switching to the Next Input Source
1. Start playback of the next input source.
2. When you are ready to play its sound through your sound system, simply
slide CROSS FADER from CH 1 to CH 2.
Slide CROSS FADER:
To the left to fade in CH 1 and fade out CH 2.
To the right to fade in CH 2 and fade out CH 1.
To the center to equally mix the two.
Notes on Mixing
If you set CROSS FADER to CH 1 to play CH 1, then you must set CUE CH 1/CH
2 to CH 2 to monitor CH 2. Likewise, if you slide CROSS FADER to CH 2 to
play CH 2, then you must set CUE CH 1/CH 2 to CH 1 to monitor CH 1.
To mix both CH 1 and CH 2, set both CH 1 and CH 2 START/MUTE switches to
START. Then use CROSS FADER to mix the two.
Do not slide CROSS FADER to the center if you want to monitor one channel
while the other is playing. Otherwise, the sound from the channel you
monitor will also be heard through your sound system. Instead, slide
CROSS FADER to the channel you are not monitoring. For example, to
monitor channel 1 while channel 2 is playing, slide CROSS FADER to CH 2.
USING TALKOVER
When you are not using the microphone, leave MIC OFF/ON/TALKOVER set to
OFF. That way, the microphone's input is turned off and all other audio
input sources are unaffected.
If you want to use the DJ's microphone:
Set MIC OFF/ON/TALKOVER to ON to mix the microphone equally with the
other audio input sources.
Set MIC OFF/ON/TALKOVER to TALKOVER to mix the microphone at a higher
level than the other audio input sources.
Your voice sounds clearly through the microphone, but all the other audio
input sources sound at a lower level. (This is useful for paging, for
example.)
USING BASS AND TREBLE
For normal sound, leave BASS and TREBLE set to 0.
Rotate TREBLE toward +10 to increase, or toward -10 to decrease, the
high frequency sounds.
Rotate BASS toward +10 to increase or toward -10 to decrease, the low
frequency sounds.
(km-06/19/1997)
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