Pearl Compressor CO-04

The Pearl CO-04 Compressor is a compact pedal that tightens the dynamic range of an instrument's signal, reducing the difference between quiet and loud notes. Its primary control sets the compression ratio, determining how strongly the output level is attenuated once the input exceeds the threshold. A separate level control adjusts the overall output volume to compensate for the perceived loudness loss that compression can cause. The pedal operates with a standard 9V DC power supply and features a true bypass switching system, ensuring that when the effect is disengaged, the original signal passes through unaltered. The CO-04's circuitry is designed to respond smoothly to picking dynamics, making it suitable for evening out sustain and adding consistency to performance without introducing noticeable pumping or breathing artifacts.

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