Check the listing for details. RockBoard by Warwick Iso Power Block V6+ Multi-power Supply. Condition: New. Listed at 101.99 USD. Power Your Pedalboard with Stage-ready Confidence Make no mistake, the reliability of your pedalboard starts with one crucial component: the power supply. It's not an area where you want to cut corners. Take the RockBoard by Warwick Iso Power Block V6+ as a prime example. This premium multi-power supply delivers clean, consistent power to up to five pedals through transformer-isolated outputs and stabilized power slots, effortlessly handling mixed voltages with switchable support 9-, 12-, 15-, and 18-volt pedals. It also includes a USB port for charging compatible devices. Thanks to its advanced filtering technology, the Iso Power Block V6+ eliminates high-frequency noise, while an external transformer shields your rig from low-frequency interference.