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GC2020C Compressor/Limiter Owner’s Manual
English
IMPORTANT NOTICE FOR
THE UNITED KINGDOM
Connecting the Plug and Cord
IMPORTANT: The wires in this mains lead are coloured in accordance
with the following code:
BLUE : NEUTRAL
BROWN : LIVE
As the colours of the wires in the mains lead of this apparatus may not
correspond with the coloured markings identifying the terminals in your
plug proceed as follows:
The wire which is coloured BLUE must be connected to the terminal
which is marked with the letter N or coloured BLACK.
The wire which is coloured BROWN must be connected to the terminal
which is marked with the letter L or coloured RED.
Making sure that neither core is connected to the earth terminal of the
three pin plug.
* This applies only to products distributed by YAMAHA - KEMBLE
MUSIC (U.K.) LTD.
Welcome to the GC2020C Compressor/LimiterIntroduction Thank you for choosing the Yamaha GC2020C Compres-
sor/Limiter. The GC2020C is a 2-channel high-performance
compressor/limiter designed for professional recording and
sound reinforcement applications. The GC2020C provides a
wide variety of control features for precise tailoring of com-
pression and limiting parameters. It also features an
expander gate to eliminate source noise that can be accentu-
ated by the compression process.
GC2020C compression can be used to add extra punch and
a more consistent level to a final mix, and channels can be
linked for stereo operation. A small amount of compression
provides a more consistent signal level when recording a
singer that tends to move closer to or further away from a
vocal microphone. Essentially, the compressor is reducing
the dynamic range. This technique can also be used with
other instruments, such as acoustic guitar, bass guitar, and
piano. In fact, any instrument with a wide dynamic range can
be recorded more easily with a little compression applied.
Creative compressor application include adding extra punch
to bass, snare, and tom tom drums. GC2020C limiting can
be used to protect speakers in a sound reinforcement system.
Whether your applications are signal control, signal correc-
tion, or simply creative—the GC2020C is flexible enough to
handle all your needs.
To get the best from your GC2020C, read this manual thor-
oughly, and keep it in a safe place for future reference.
Table of Contents What’s a Compressor/Limiter? . . . . . . . . 1
Compressor/Limiter Functions . . . . . . 1
Compressor/Limiter Parameters . . . . . 2
Setting Up the Compressor/Limiter . . . 4
What’s an Expander/Gate? . . . . . . . . . . . 5
Setting Up the Expander/Gate . . . . . . 5
Controls & Connections . . . . . . . . . . . . . 6
Front Panel . . . . . . . . . . . . . . . . . . . . . 6
Rear Panel . . . . . . . . . . . . . . . . . . . . . . 7
Specifications . . . . . . . . . . . . . . . . . . . 8
Dimensions . . . . . . . . . . . . . . . . . . . . . 9
Block Diagram . . . . . . . . . . . . . . . . . 10