Aclam Dr. Robert; Effects Pedal for Electric Guitar; Replicates the sound of the legendary Vox UL730 vintage amp (Beatles - ""Revolver""); High-quality, selected components;Unique midrange filter; ""Mach Schau!"" boost; Road-ready finish; Fast-Track system for mounting on Smart-Track series pedalboards; Relay-based true bypass circuit with soft-touch switches for electric guitar; Gain control for the ""Mach Schau"" booster; JFET transistor-based ""Mach Schau!"" - function to enable assertive solo & overdrive sounds; A dedicated knob allows to turn up the gain and volume of the ""Mach Schau!"" - channel all the way up to massive distortion sounds; Controls: 1x Master Volume, 1x Mids (Midrange-Filter), 1x Gain (""Mach-Schau-Boost""), 1x Volume (""Mach-Schau-Boost""; LED: Effect On; Boost On; Footswitches: 1x Effect Bypass, 1x Mach Schau Boost; Connections: Input (1/4"" Jack), Output (1/4"" Jack); Power Supply connector: Barrel Connector 5.5 x 2.1 mm, center negative; Current Draw: 40 mA; powered by a 9 V Battery or a 9 V DC Power Supply (not included); suitable optional Power Supply: Item no. #409939; True Bypass; Dimensions (W x D x H): 136 x 55 x 87 mm (5,35"" x 2,17"" x 3,43""); Weight: 410 g (0,9 lbs); Made in Spain