Power your pedals with Ojai R30?the highest horsepower, most technologically advanced effects pedal power supply of its size. You get clean, rock-steady power for your 9V, 12V and 18V effects pedals in a low profile, expandable package, giving you room to grow. Ojai R30?s dual-stage topology, pre-regulated outputs, optically isolated feedback, and advanced multistage filtering allow your pedals to achieve their highest possible dynamic range.