Mastro Valvola Italian handmade effector DISTORTION Tempesta

Mastro Valvola is a manufacturer that handcrafts unique pedals in Italy using the highest quality components for unique guitarists. Designed to respond like a saturated vacuum tube, it will drive the clean channel of any amp. Fully analog circuit distortion, true bypass design Power supply: Compatible with 9-12V power supply, center negative 9-21V 20mA AC/DC adapter *Isolated power supply recommended. Warranty included Japanese instruction manual
Please read this instruction manual carefully before use.