Blue Tuber

The Shaevle Blue Tuber is an overdrive pedal inspired by the classic Tube Screamer-style circuit, designed for warm, smooth drive tones with a characteristic soft midrange emphasis and responsive dynamics. Its simple three-knob layout includes Gain for controlling the amount of overdrive, Tone for shaping the frequency response, and Level for setting output volume. The circuit can be used for moderate overdrive or to push an amplifier or another gain stage while retaining playing dynamics. It features a 1 MΩ input impedance and 1 kΩ output impedance, with standard mono 1/4-inch input and output connections.