MXR

Description

Boost your tone with this used MXR M133 Micro Amp Preamp pedal in fair condition—perfect for pushing an amp harder, lifting solos, or adding clean gain without changing your core sound. Simple one-knob control delivers up to +26dB of boost with a high-impedance input for clear signal and low-noise operation. Rugged MXR compact housing fits any pedalboard and runs on standard 9V power for easy setup.

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