The Carl Martin Hot Drive'n Boost MK3 is a "TWO IN ONE" overdrive pedal designed to emulate the sound of a tube amp. It offers a tube-like overdrive sound with a separate boost circuit, providing up to 20dB of extra gain for solos. This pedal features Gain, Wave, Level, and Boost controls, along with Drive and Boost switches. With its low output impedance and built-in regulated power supply, the Hot Drive'n Boost delivers high-quality circuitry with maximum headroom, and is ideal for blues and hard rock tones.