GAIN CONTROLS
Turn the Gain controls clockwise to increase Gain and
counterclockwise to decrease Gain.
LED INDICATORS
Displays
The LED displays for each channel operate as follows:
Typical Power Up and Power Down Operation
When the amplifier is first turned on, the green POWER displays will light up , and there will
be a 2-second turn-on delay, during which all LEDs will be bright. The signal
LEDs are green.
CLIP LEDs not fully bright - maybe the output is overloaded or clip limiter is working
CLIP flashing and other LEDs are all on - the amplifier is reaching its full output, the clip circuit
is working to prevent overload output.
Overheat Situation:
When the ventilation is not good or the amplifier is overloaded under low impedance, it will
lead to the overheat protection.
The overheat protections is as follow:
25-50
: fans run in low speed
℃
50-60
: fans run from low speed to high
℃
75
: protection LEDs start to flash
℃
85
: protection splash quickly and CLIP LED is illuminated, output is controlled at 15 dB
℃
90
: overheat protection, the protection LEDs flash in high speed and the CLIP LED is fully
℃
bright, which shows the extreme low load, no ventilation or fans are broken.
POWER Green Main power supply active on this channel.
Clip LED on
Shows activity of Limiting circuit,
which responds to both clipping and to thermal
overload.Protect Red Flashes as amplifier
approaches maximum temperature.
CLIP Yellow
Summary of Contents for D Series
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