Used MXR M133 MICRO AMP Guitar Preamp

Boost your tone with this used MXR M133 Micro Amp Guitar Preamp in great condition, delivering clean, transparent gain to push your amp, drive pedals harder, or lift solos without changing your core sound. A single Output knob makes dialing in up to +26dB of boost fast and easy, while the high-input-impedance design keeps your pickups sounding lively. Rugged, stage-ready MXR build in a compact stompbox format for any pedalboard.