Classic Opto-Compressor

The Carl Martin Classic Opto-Compressor is a compressor pedal designed for electric guitar, featuring an opto-electronic circuit. It offers controls for Gain, Comp, Attack, and Level, allowing precise adjustment of the compression response and character. The pedal operates with a 9V battery or an optional power supply unit. Its sturdy metal housing measures approximately 95 x 120 x 56 mm (WxDxH) and weighs around 0.35 kg. The compression action is described as a smooth optical squish, capable of a wide range of action from gentle smoothing to peak limiting. The pedal provides a characteristic warm Old School coloration to the sound, with a fairly clean tone and low noise level. The construction quality is decent, and it runs on standard Boss-type 9V DC.