Strymon Ojai R30 High Current DC Power Supply is a technologically advanced effects pedal power supply that provides clean and reliable power to your 9V, 12V, and 18V effects pedals. Its low profile and expandable design make it perfect for growing rigs, and its dual-stage topology, pre-regulated outputs, optically isolated feedback, and advanced multistage filtering ensure that your pedals achieve their highest possible dynamic range. The all-analog circuitry offers two stages of isolation, completely eliminating ground loop and AC line noise issues, allowing your pedals to sound like they were designed to sound. With automatic international power compatibility built-in, Ojai R30 is world tour ready and can be expanded by connecting additional Ojai units to the 24V Thru jack.