High Voltage Overdrive Overtuber is Citadel Electronics' unique interpretation of the classic tube driver pedal. Activate the high-voltage BOOST mode for expanded tonal range. The auto-bias topology optimizes the performance of the preamp tubes, resulting in consistent harmonic and dynamic tones. ◆Control details・LEVEL Controls the output volume of the pedal.・TONE Adjusts the high frequency response and fine-tunes the brightness of the tone.・BODY Adjusts the low frequencies after distortion, controlling the overall thickness and richness of the sound.・GIRTH Increases low frequency saturation and interacts with the GAIN control.・GAIN Adjusts overall saturation, setting the amount of distortion across the entire frequency range. Interacting with GIRTH, which controls low frequency saturation, you can fine-tune the depth and intensity of the overdrive. - TRUE BYPASS (with activation state switching function) The switch on the side allows you to set the pedal's activation state (on/bypass).