Carl Martin Opto Compressor Pedal

Carl Martin Opto Compressor Pedal (Ex-Display)

Product code: bstcmaopto

Welcome to the Carl Martin Classic Optical Compressor, an old-school compressor from the days where colouring was an important factor to the sound.


  • Carl Martin Opto Compressor Pedal (Ex-Display)

    Welcome to the Carl Martin Classic Optical Compressor, an old-school compressor from the days where colouring was an important factor to the sound.

    Main Features

    • Vintage-style optical compression for guitarists
    • Offers transparent to full-on compression
    • Rugged die cast chassis

    Main Features

    • Vintage-style optical compression for guitarists
    • Offers transparent to full-on compression
    • Rugged die cast chassis

    Read More


    An optical compressor performs gain reduction control via a light source into a photo sensitive cell: as the light source gets brighter, the photo sensitive cell sends a signal to reduce dynamic range, or what becomes a compressed signal.
    The four controls (from left to right) are:
    Gain, which controls the 'pre-glow' of the optical circuit (the more you turn this up, the fatter the sound)
    Level, which controls the overall volume of the compressor
    Compression, which controls how hard or soft the compression is
    Attack control which takes the signal from transparent to outright total squeeze.
    A short time with this compressor will allow you to find some of those classic guitar sounds which may somehow have escaped you before. Due to the nature of compressors, we highly recommend a regulated power supply or a large stock of batteries!

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  • Additional Information

    On demo in store No
    Brand Carl Martin
    Condition Ex-display

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