VeroCity Effects Pedals are meticulously assembled with hand-selected components on a custom-layout circuit board. They utilize BELDEN wire and high-quality German WBT silver solder. This unit is a model that emulates the preamp section of the Randall Diavlo. A key feature in terms of control is that the two gain amplification points, which are linked on the actual unit, are intentionally split into two controls. Preamp adjusts the amplification of the FET stage that emulates the first vacuum tube stage, and Gain adjusts the amplification of the FET stage that emulates the second vacuum tube stage. The Boost switch is very effective, allowing you to create detailed high-gain sounds to the point where you don't need to buy another booster. The powerful low end, the hot mid-range, and the edgy high frequencies all combine to create a comfortable setting for those seeking high-gain sounds. The gain range is quite wide, and when set to a low distortion setting, the clean to crunch tones have a sharp, cutting nuance that is quite pleasing. It feels so good that it seems to pair well with single-coil guitars, and you can really feel the wide range that has been provided. Operation has been confirmed.