1. INPUT LEVEL CONTROL
Control the level of each of the six input channels.
2. INPUT SIGNAL INDICATOR
These LEDs light when each of the input signal is present.
3. CHIME SWITCH
It activates the four tone chime circuitry. The chime indicator lights when chime is being activated.
4. SIREN ON/OFF SWITCH
When this switch is pressed, siren signal is outputted. Press this switch once again to, stop the siren.
The siren indicator lights when siren is being activated.
5. TONE CONTROL
Control the bass (100Hz) and treble (10KHz) tones of the main amplifier output and the MIX output.
6. PROTECTION INDICATOR
Indicated that the amplifier is in protection mode.
7. MASTER VOLUME CONTROL
The master volume control to collectively control the sound level of all outputs and by turning the knob
clockwise to increase the volume and counterclockwise to decrease it.
8. POWER SWITCH
Press the power switch to turn on the power.