Effects Pedal with Rotary Drive- Level & Tone Controls. True Bypass / Buffer Bypass. Luminous Glow-Knobs for Dark-Stage Environments. Requires 9V Centre Negative DC Power Supply 75mA Current Draw (Not Supplied)Power Supply: 9Vdc (Adaptor not Included) Dimensions: 94 x 51 x 53mm Weight: 174g. The NUX Tube Man guitar effects pedal offers genuine “Tube-like sound” that makes it more than your average Tube Screamer! More gain was the goal with this pedal! If you’re not playing through a real tube amp- cranked for overdrive- it’s difficult to get genuine tube overdrive sound. Using a FET Transistor System- which has overdrive and distortion capabilities is the best approach in maintaining the genuine sound you get from an actual analog tube amp. A FET allows you to bring out the harmonic attributes- and break-up the distortion into a finer grit- the way a real tube does and that is exactly what the MK2 Tube Man does! Now your leads will sing richer and longer- and your rhythm will be more open and expressive than ever before. It all culminates into an overdrive that is superbly dynamic- with crisp precise clarity that lets players cut through a dense mix- without losing fat mid-range.. guitar pedal-effects pedal