Alfonso Hermida went back to the Old School thru-hole, film cap, carbon 1/4 watt resistor Zendrive version. Holy SMOKES! Limited Run on these incredible Zens.. They sound phenomenal . The standard in dynamic, touch-sensitive overdrive pedals. Cut through the mix with the incomparable Zendrive. Inspired by a legendary guitarist, the Zendrive delivers blues, country, jazz and fusion tones associated with some of the finest, most costly amplifiers in the market. Four knobs control the overall volume, gain, tone and voicing of the pedal. At lower settings, the pedal offers extremely light overdrive sounds reminiscent of tube amps set near the “sweet spot.” At higher settings, the Zendrive increases in gain and sustain, producing tasty overdrive and low distortion tones. FEATURES Smooth, round, balanced, low-to-medium gain overdrive Slight overdrive to mild distortion Great dynamic response and open sound Connectors: Input, Output, DC adapter Power Supply: 9V battery operation or DC adapter Dimensions: 4.37″ (L) X 2.37″ (W) X 1.07″ (H) “The Zendrive is one of the most elegant sounding overdrives I’ve ever heard…. Whether you’re seeking a glass-smooth overdrive with flawless string-to-string clarity or a clean booster/sweetener for a medium-wattage combo, your search is over.” —Darrin Fox, Guitar Player Magazine “I tried it out and fell in love with it.” —Robben Ford “Really smooth and musical with a nice harmonic factor. It seems to adapt really well to different amps…” —Sonny Landreth “One of the best sounding kind of overdrive pedals I’ve ever heard… fabulous.” —Vince Gill “You really won’t find a smoother overdrive that expands your tone so effortlessly.”