MPA-40 20-Watt PA Amplifier
(320-2001)                 Operation                  Faxback Doc. # 51505

Controls and Operation

 MICROPHONE 1 and 2 Inputs - Connect any standard dynamic microphones.

POWER Switch and Indicator - Press the bottom half of the switch to turn
                             on the amplifier. The indicator lights. Press
                             the top half of the switch to turn off the
                             amplifier.  The indicator goes off.

     MASTER VOLUME Control - Controls the overall loudness level of all
                             sources equally.  With the amplifier turned
                             on and the audio input source turned on (and
                             set to play, if needed), set this control to
                             its mid-range setting (5).  Adjust this
                             control again after adjusting the source
                             mixing controls.

CAUTION:  Be careful not to raise the volume level too high.  Doing so
          might overload the system.

    MIC 1 and MIC 2 Source - Adjust the input level for each of the two
           Mixing Controls   microphones to get the proper volume and
                             balance.

   PHONO/AUX Source Mixing - Adjusts the input level of the PHONO or
                   Control   AUX/CD sound source for the best volume and
                             balance.

              TONE Control - Adjusts the sound quality according to the
                             speakers, sound source, and room acoustics.
                             Turn TONE toward LOW to adjust the sound
                             toward a low-frequency tone, or toward HIGH
                             to adjust it toward a high-frequency tone.

Notes:  Leaving TONE set to HIGH produces a flat, unadjusted tone.

        If feedback occurs, turn TONE toward LOW or turn down the volume.

(EB 2/26/99)