3-Channel Stereo Audio Mixer
(320-3009)                 Preparation                Faxback Doc. # 41584


Warning:  A sudden high output from the miser could damage your hearing,
          especially if you use headphones, and might also damage the 
          audio devices connected to the mixer's output.  Before using the
          mixer, make sure you set your receiver/amplifier's volume control
          to its minimum volume level setting.

Before you connect the AC power cord, make sure you set POWER to off.  And,
avoid sudden and unusable sound outputs from any audio devices that you
connect to the mixer, be sure to have their power controls set to off (and
any tone controls set to flat).

CONNECTING THE OUTPUTS

To play the mixer's output signal through your sound system (for events
such as parties, dances, conferences, and so on), connect one end of an
audio patch cord (Cat. No. 42-2356, not supplied) to the mixer's AMP L
(white) and R (red) output jacks, then connect the other end to your
receiver/amplifier's left and right line input jacks (matching left to
left, and right to right).

To record the mixer's output signal, connect one end of an audio patch
cord (Cat. No. 42-2356, not supplied) to the mixer's REC L (white) and R
(red) output jacks, then connect the other end to your tape deck's left and
right line input jacks (matching left to left, and right to right).

CONNECTING THE INPUTS

You can connect up to four line-level and up to two low-level audio input
sources to the input jacks on the back of the mixer.  You can also connect
a microphone to the mixer's front or back panel.

1.  Connect the line-level outputs from up to four audio sources (such as
    a CD player, tape deck, tuner, camcorder, or VCR) to the LINE 1, LINE
    2, LINE 3, and LINE 4 input jacks (matching left to left, right to
    right).

    Caution:  Do not connect an audio source with a line-level output to the
              low-level PHONO 1 or PHONO 2 input jacks.

2.  Connect the low-level outputs from up to two audio sources (such as
    magnetic-cartridge turntables) to the PHONO 1 and PHONO 2 input jacks
    (matching left to left, right to right).

Note:  If you connect magnetic-cartridge turntables, also connect their
       ground wires (usually black or green) to GND.

3.  Connect a microphone (not supplied) to the mixer.

    If the microphone has an XLR plug, connect it to MIC on the top left
    corner of the front panel.

    If the microphone has 1/4-inch plug, connect it to MIC on the lower
    right corner of the back panel.

Note:  We recommend you do not connect an XLR and a 1/4-inch plug
       microphone to the mixer at the same time.

CONNECTING POWER

Connect the power cord to a standard AC outlet.

Note:  The power cord has a polarized plug that fits only one way into a
       standard AC outlet.  If the plug does not fit, turn it clockwise
       so its fit properly.  Do not force the plug into the AC outlet or
       you could damage the outlet or the plug.

CONNECTING A LAMP

The mixer has a 12 V BNC lamp socket for connecting a 12V DC/3W lamp
(RSU Cat. No. 11443363) so you can see the control panel in dark or low-
light conditions.

Caution:  Use only a 12V DC/3W lamp.

CONNECTING HEADPHONES

To listen in privacy or monitor the audio source inputs so you can locate
an exact passage or section before mixing it, plug a pair of stereo
headphones (not supplied) with a 1/4-inch plug into the PHONES jack on the
mixer's right front panel.

Your local RadioShack store carries a wide selection of headphones.

Listening Safely

Do not listen at extremely high volume levels.  Extended high-volume 
listening can lead to permanent hearing loss.

To protect your hearing when you use headphones, always follow these
guidelines to set the listening volume.

Set CUE LEVEL to the lowest setting before you begin listening.

After you put on the headphones, adjust CUE LEVEL to a comfortable 
listening volume level.

Once you set your headphones' volume, do not increase it.  Over time, your
ears adapt to the volume level, so a level that no longer causes discomfort
might still damage your hearing.

(km-09/12/97)