MXR Il Torino, Boost/Overdrive from the MXR Custom Shop, Designed by Italian Boutique Amp and Pedal engineer Carlo Sorasio (LAA Custom), MOSFET technology recreates classic tube preamp gain structure, Dynamic, touch responsive overdrive and natural compression, Highly tweakable 3-Band EQ, Volume and gain controls, Boost/OD-switch toggles between Boost mode (cleaner sound with some compression and sustain) or Overdrive mode (more aggressive, saturated tube amp sound), Buffered Bypass with Class A Low Impedance Output Driver for natural sound in bypass also with long cable lines, Power: 9V battery or optional 9V DC power supply, 2.1 mm barrel plug, polarity: (-) center, as e.g. Dunlop ECB 003 or RockPower RP NT 1, Current draw: 4.7 mA, Dimensions (L x W x H): 10.8 cm x 5.7 cm x 5 cm, Made in USA