Walrus Audio Canvas Power 22 Power SupplyCanvas Power Supplies bring simplicity and modularity to powering your pedalboard. Delivering up to 500mA of silent, isolated, and clean 9V power to each output, these power supplies are perfect for the modern pedalboard. The Canvas Power series is built using modern switch mode supply architectures. This means each output is isolated, highly efficient, and heavily filtered ensuring they supply plenty of power with incredibly low noise. Each model is