Description

Boost your tone with this used MXR M133 Micro Amp Preamp pedal in good condition, a classic clean gain solution for guitar or bass. Its single Gain knob delivers up to +26dB of transparent boost to fatten solos, push an amp into natural overdrive, or level-match effects. Built in a rugged compact enclosure, it features 1/4" input/output jacks and runs on 9V battery or standard 9V DC power (center-negative).

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