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AMP SERIES CONSTANT VOLTAGE INSTALLATION AUDIO POWER AMPLIFIERS INSTALLATION AND OPERATION MANUAL
CONTROLS, CONNECTORS & INDICATORS
FRONT PANEL
The AMP Series differ only slightly across all models and all share the same
features on their front panels.
The functions of the controls and indicators are as follows:
1
Power Switch
Press the switch to up for power on and down for power off. At start-up
(turn-on), the input to the amplifier is muted for approximately two seconds.
2
Power Indicator
This blue LED will illuminate and indicates that the amplifier is on and receiving
mains power.
3
Protect Indicator
This yellow LED indicates a problem with the amplifier or that it has over
heated. In the advent of a thermal overload, the internal operating temperature
of one or both amplifier channels has exceeded a safe level of operation and
the channel will be automatically muted. The fans will continue to run and once
the effected channel/s have cooled, they will unmute and return to normal
operation.
The AMP series is also fitted with DC protection, if there is a DC voltage at the
output the protection LED will glow yellow.
It should be noted that the minimum load for the amplifier is 4 ohms per
channel (8 ohms bridged).
If an overload occurs, the amplifier will run into a current limit mode, restricting
the excess current beyond set limits.
4
Clip Indicator
This red LED will illuminate when clipping occurs. Clipping can occur under
extreme operating conditions such as:
•
complex or very low loads
•
over driving the amplifier
NOTE:
The amplifier is not damaged by running into clipping, but
speakers may be. To maximise the life of your speakers, try to keep
clipping infrequent.
5
Signal Indicator
This green LED will illuminate when an input signal is detected.
6
Fan Grill
This is where air is drawn into the amplifier for cooling.
NOTE:
You should always ensure that the fan grille is kept clean
and the foam is free from dust or lint. This will ensure longer operation
of your amplifier and reduce the possibility of it prematurely going into
thermal shutdown mode. Refer to the “Maintenance” section on page 11
for further information.
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