INTRODUCTION The AM is the first automatic mixer to include notch filters and basic tone control in a single, cost-effective package. Although the AM is an affordable unit, performance is equivalent to much more expensive separates. The AM has 6 input channels which will accept either mic or line level signals. The AM will bean ideal choice for small churches, conference rooms, or anywhere a state of the art integrated automatic mixer is desirable. The AM has many features not found in systems composed of separate components. The AM includes an automatic (switchable to manual) ambient threshold sensing circuit to eliminate the need to adjust the ambient threshold for varying background noise conditions. This makes the initial setup of the AM quick and simple. The Last Mic Hold function is also included. With Last Mic Hold in the "On" position, the last active mic is held in the open mode until another microphone comes on. In this way, much better performance is achieved in marginal situations (i.e. very soft talkers, or talkers who turn away from the mic. Each channel is jumperable to allow bypass of the notch filters and tone controls. This is advantageous when connecting outside music sources such as CD players or tape decks. Each channel also has remote volume control capability with the addition of a single linear potentiometer per channel. In addition, the Main level may also be remotely controlled. Two balanced line outputs are provided for amplifier feed or tape recording.