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For your information the unit can be internally rewired for use in 230V, or 110-125V countries -
contact your dealer for information. A special 100V version is available for Japan and a 220V, 60Hz
version for Republic of Korea.
The mains lead connections to the appliance are coloured in accordance with the following code:
Green-and-Yellow
Earth
Blue
Neutral
Brown
Live
•
WARNING: THIS APPLIANCE MUST BE EARTHED
2.5 SIGNAL LEVELS
The GCX20 will accommodate both -10dB and +4dB operating levels without the need for level
switching.
PLEASE NOTE:
the XLRs are set for +4dBu and the TRS jacks for -10dBV operating levels. Use the
appropriate connector/level to interface between your equipment and the GCX20.
Using the TRS jack input with +4dB signal levels may in some set-ups will over drive the GCX20 and
cause distortion.
The GAIN control on the compressor section allows -20dB to +20dB of level adjustment which should
allow the GCX20 to interface to most equipment types.
Signals in excess of +20dB will cause the unit to distort.
2.6 EXTERNAL CONNECTIONS
The input and outputs of the GCX20 are balanced on both XLR and 1/4" TRS jack connectors. For
balanced input and outputs, connections to the unit should be wired as follows:
XLR
+4dBu Pin 1
Screen (Signal ground)
Pin 2
Hot (+ve)
Pin 3
Cold (-ve)
For un-balanced operation join pins 1 and 3 on either input or output.
TRS jack
-10dBV
Tip
Hot ()
Ring
Cold
(signal
-)
Sleeve
Screen
(signal
ground)
For un-balanced operation join Ring and Sleeve on either input or output.
SERIAL No:
230V
~
50Hz
INTERNAL FUSE T50mA
Manufactured in the UK by
SCV Electronics, London
No user serviceable parts inside
Disconnect from mains before removing cover
This equipment must be earthed
-10dBV
2
OUTPUT
+4dBu
-10dBV
INPUT
SIDECHAIN
IN-OUT
+4dBu
Ring = Send
Tip = Return
Jacks
T = Hot
R = Cold
S = GND
XLRs
1 = GND
2 = Hot
3 = Cold
Fig 2.6.1 GCX20
rear view showing Input and Output connections
