Xlr Input; Led Indicators - Gisen Audio DSP Series Operation Manual

XLR input

1. Balanced input connection
XLR input connectors are electronically balanced.
XLR input connectors should be wired as follows:
Pin 1 Ground
Pin 2 hot（+）
Pin 3 cold（-）
2 1
3
Gnd
each channel has a balanced XLR input connector. Balanced connections is recommended,
especially when using long cables. Unbalanced connections can be used with when using
short cables, and the signal source resistor should be less than 600 ohm.
OUTPUT TERMINAL SAFETY WARNING!
Do not touch the outputs when the amp is power on!
Turn off the amp before connecting cables!
Speakon output
t
he amplifier is equipped with speakon output connectors.
VPL
Voltage Peak Limiter (VPL) is a unique feature in DSP series
amplifiers. It is used to select the maximum power available
on each output channel.
VPL enables users to set the best output power for the speakers.

LED Indicators

POWER green
MUTE red
SIG/VPL green/red
-When the amp is turned on, the green power light is on. there will be about 7-9 seconds delay.
meanwhile, the MUTE light is on.
-The signal LED is green.
-When "MUTE" is on, output will mute to protect the amp.
-"VPL" flashes and other LEDS are on means the amp is at its highest output.
VPL will work to avoid overload output.
-"MUTE" flashes, the fans will run faster.
-When the amp is at its highest temperature, the "MUTE" will flashes at high speed,
"VPL" will be on and the amp will be in overheat protection.
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2. Unbalanced input connections
To connect an input to an unbalaced source, it is
possible to connect pins 1 and 3 in the XLR plug
at the amplifier end of the cable. However, a
better method is to connect pin 3 to the sheild at
the source end of the cable, as this usually results
in better hum and noise rejection. Balanced input
connections are recommended whenever possible
+
-
2 1
3
1 +
1-
2-
2 +