The Yamaha GC2020C is a 2-Channel Compressor/Limiter with an external trigger function.

Extended information

GC2020C
Whether you're operating in a professional recording or sound reinforcement environment, or otherwise in need of a dynamics processor, the Yamaha GC2020C is a serious contender.

Two-Channel Compressor/Limiter
Designed as a two-channel Compressor/Limiter, the GC2020C provides a wide variety of control features for precise tailoring of compression and limiting parameters, while an independent Expander Gate will help you to suppress unwanted hum, hiss or noise.

External Trigger Function
The External Trigger function and the related SIDE CHAIN IN and OUT jacks open up new creative possibilities by allowing either or both compressor/limiter channels to be triggered by external signals. Alternatively the signal fed to one compressor/limiter channel can be used as a trigger for the other channel and act as a ducking effect for DJ or broadcasting applications.

Stereo Mixdowns Come to Life
The Yamaha GC2020C will make your stereo mixdowns come to life by adding extra punch, while keeping the sound image rock-steady thanks to the Stereo Link function. Two-channel mono operation is also possible, of course.

Controlling Dynamics
The GC2020C is your ideal companion for controlling the dynamics of stereo signals, vocals, and any other signal source with significant and therefore undesirable, dynamic variations. Guitarists in search of more sustain will find it a clean device that preserves all the warmth and tonal characteristics of their instrument, while sound engineers will be impressed by its straightforward design, sound quality, and creative possibilities.

Technical specifications

Frequency Response 0 +1 -3dB 20 Hz-- 20kHz@+4dB
Total Harmonic Distortion Less than 0.05% (THD + N) 20Hz--20Hz@ +4dB
Hum and Noise (Average Rs=600W) (Measured with BPF 20 Hz - 20kHz) -85dB
Compression Ratio 1: 1~ infinity: 1 (Maximum Limiting 32dB)
Compressor/ Limiter Threshold Level +20dB - 35dB
Expander Noise Gate Threshold 0 ~ -80dB (Input level SW at +4dB) (Input control at 0 : 0 ~ -40dB) (Input control at Center: -25 ~ -65 dB) (Input control at 10 : -40 ~ -80dB -24 ~ -104dB (Input level SW at -20dB) (Input control at 0: -24 ~ -64dB) (Input control at Center: -49 ~ -89dB) (Input control at 10 : -64 ~ -104dB)
Attack Time 0.2ms - 20 ms
Release Time 50 ms ~ 2.0 ms
Gain Reduction 5 Segment LED Meter
Peak Indicators Red LED on each channel lights up when the output signal is 3 dB below the nominal level.
Signal Indicators Green LED on eaaach channel lights up when the output signal is 3 dB below the nominal level.
Link ON/OFF
Controls (per CH.) Input Level, Output Level, Exp. Gate (with ON/OFF switch), Comp. Ratio, Threshold Level. Attach Time, Release Time, Comp. Switch
Power Consumption 20 W