Digital Power Amplifier
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II. Appearance
2.1 Front Panel
4-Channel series
2-Channel series
1. Indicator
PRO:
Signal indicator (signal output); After being powered on and input with signal, if the protection
indicator (PRO) and LIM are on first, go out after a few seconds, and are on again, the output short
circuit fault occurs, and the above phenomena will repeat if the fault is not removed. Now, power off
immediately, and re-power on after troubleshooting.
LIM:
Limit indicator;
A. Both LIM and PRO are on: Amplifier is in short circuit or over-current protection.
B. LIM is on while PRO is off: After the continuous repeated signal makes the output power reach or
exceed rated power for 2-4s, the power limits the start of circuit and halves the rated output power
automatically. This circuit will not be started with audio and music applications under rated power.
CLP:
Clip indicator, please reduce the gain properly to avoid severe clip;
SIG:
Input level indicator, for audio output level;
70V:
Gear indicator, if it is always on, the current gear is 70V output voltage.
2. Channel volume control knob
Name the volume control knob (CH1) by the number of channels with an analogy, such as CH1, CH2...
3. Power switch
Power switch is provided with power indicator, when placing it in ON position, its internal power indicator
will be on.