Front Panel - JB Systems AX400 Bedienungsanleitung

MAJOR OPERATING CONTROLS AND FUNCTIONS

FRONT PANEL

1. Power ON/OFF switch: When you turn on the amplifier, the power
ON/OFF transmission protection starts working, after 3-4 minutes
you hear a "kniak" sound. 1-2 minutes later you hear a "kniak"
sound and then the amplifier is connected to the speakers.
2. CH1 Input Level Control: Adjust this control to the volume you
need. You can adjust it with the calibrated markings on the front
panel that indictes the amount of attenuation applied to the input
signal. When the input signal source is at its rated level, it allows
proper volume setting of the speakers. Use this control when using
the amplifier in BRIDGE or PARALLEL mode only.
3. CH2 Input Level Control: Same as CH1.
4/5. Level Indicator LED (RED): The leds will light up in two situations:
• When the output signal has reached its clipping level, the led
lights up which might result in distortion. Should this occur, adjust
the input level control until the clip led doesn't light up anymore.
• When there is an input signal and the clip led lights up
continiously but there is no sound, it might be that there is a short
circuit. Should this occur, turn off the amplifier and find out what
the cause might be.
3 AX400