I kept meaning to ask you that previously but spaced it out. I have never used anything but batteries going back to the 90's. I paid a bunch of money for a Strymon Ojai for a pedal steel rig and it failed on me just using it around the house after about two or three months. I hate dealing with warranty crap so it's just sitting in the box, hunk of shit. Made in USA, false advertising. The PS is made in the USA but the little black ps for the main PS is a chinese POS if you catch my drift.