Gainster guitar effects pedal, compact design with adjustable Level, Tone, and Gain. - Model: Gainster - Controls: Level, Tone, Gain - Input/Output: 1/4" input and output jacks - Body Material: Metal housing with textured finish Thank you for viewing. This is an overdrive pedal from Clark Amplifier, a manufacturer that makes Fender tweed-style amplifiers. It's often compared to the Klon Centaur, but the construction and sound are completely different. The Gainster is often placed at the beginning of the effects chain and used constantly. It adds a slight distortion and a touch of rusticness to the clean tone. Sumo Stomp sells a Klon clone called Gain Sumo, but the sound was definitely different. The larger enclosure has a slightly wider range and more headroom. This is definitely recommended for those who shape their sound by rolling back the guitar's volume.