Used MXR M133 Micro Amp Pre Effect Pedal

Boost your tone with this used MXR M133 Micro Amp, a clean, transparent preamp/boost pedal in excellent condition. Its single Gain knob delivers up to +26dB of output to push amps, fatten solos, or level-match guitars without changing your core sound. Built with true bypass switching for a pure signal path when off, it runs on standard 9V DC power for easy pedalboard integration. A simple, studio-quality lift for any rig.