Used MXR M133 Micro Amp Pre Effect Pedal

Boost your tone with this used MXR M133 Micro Amp Pre Effect Pedal in great condition. This powerful pedal delivers up to +26dB of gain, perfect for adding sustain, enhancing solos, or balancing different guitar pickups. Featuring a simple single-knob design, true bypass switching, and a durable metal casing, the M133 ensures reliable performance with minimal noise. Whether you're pushing an overdriven amp to new heights or compensating for signal loss in long cable runs, this legendary preamp provides clean and dynamic boost without altering your original tone. Runs on a 9V battery or external power supply (not included).