Used Master Effects Martyr Guitar Preamp

Used Master Effects Martyr Guitar Preamp in good condition, delivering aggressive high-gain tones with precise EQ shaping. This compact pedal features a three-band EQ, gain and level controls, and works well both into a power amp or as a part of your pedalboard. True bypass switching ensures clean signal when disengaged. Rugged metal enclosure shows minor cosmetic wear but functions perfectly. Ideal for players seeking classic American high-gain preamp tones in a reliable, pedalboard-friendly format.