4-Channel Stereo Microphone Mixer
(320-1106)                 Operation                  Faxback Doc. # 18282

After you make all the necessary connections, follow these steps to
operate your mixer.

1.  Set POWER ON/OFF to ON to turn on the mixer.

    NOTE:  To avoid a possible popping sound, always turn on the mixer
           before you turn on the amplifier.

2.  Turn on the output amplifier and leave its volume set to minimum.

3.  Set the selected audio input source's volume to its minimum setting,
    turn it on, and set it to play (or continuously talk into the
    microphone).

4.  Set the corresponding CHANNEL 1, CHANNEL 2, CHANNEL 3, or CHANNEL 4
    volume level to about 6-10.

    NOTES:  When mixing more than one audio input source, set all the
            volume level controls of the audio input sources to the same
            setting.

            Adjust the mixer's fader controls to get the best mix.  If the
            overall sound level is too low with the fader controls at 10,
            increase the output amplifier's volume.

5.  Adjust the output amplifier's volume level control to the desired
    volume.

6.  When you are finished mixing, set POWER ON/OFF to OFF and turn off the
    output amplifier and all the audio input sources.

MIXING MONO OR STEREO

When you set the mixer's MODE STEREO/MONO switch to MONO.

    The mixer routes the input signal of any monaural source connected to
    only one of the mixer's line inputs (LEFT or RIGHT ) to both output
    channels.

    The mixer changes the stereo input signals connected to the mixer's
    line inputs (LEFT and RIGHT) to monaural.

To mix mono signals with stereo signals, set STEREO/MONO to STEREO.

NOTE:  For mono amplifiers (found in some PA systems), it is best to set
       MODE STEREO/MONO to MONO.


VOICE-OVERS

You can mix an audio input source containing pre-recorded music or special
sounds while you talk into a microphone.  This lets you mix your voice
with music.

1.  Set the mixer's fader controls for the music source you want to mix to
    the desired volume level (before you begin talking).

2.  While the music plays, talk into the microphone and adjust the fader
    controls for the microphone and music source so you can hear yourself
    over the music.

3.  During pauses in speech, return the music source's fader controls
    to their original positions.

4.  When you finish speaking, set the microphone's fader control to 0 and
    the music source's fader controls to their original positions.


(CS 11/9/95)