AMT Electronics California Sound Distortion, made in Russia. This is an extreme distortion pedal. It emulates the Mesa/Boogie Rectifier, a synonym for heavy guitar sounds in the American loud rock scene of the 2000s. It works perfectly and is in beautiful condition! ▼Included: ・Box, etc. A drive pedal that emulates the sound of the popular MESA/BOOGIE Rectifier amplifier. It has a very high amount of distortion, making it more convenient to have on your pedalboard than bringing an amp to a live house venue.