The Crazy Tube Circuits Black Magic MkII is a high-gain distortion pedal for electric guitar, designed to emulate the sound and feel of a high-gain tube amplifier. Using JFET technology and cascaded gain stages, it offers a versatile range from classic rock distortion to heavy metal tones, making it a great choice for stoner rock and metal. Features a 3-band EQ and presence control for sound shaping, plus a boost footswitch for solos. It cleans up with the guitar's volume knob, and is similar to the Marshall BluesBreaker.