Check the listing for details. Walrus Audio Canvas Power HP Pedal Power Supply. Condition: New. Listed at 195.49 USD. Your Clean, Transparent Canvas for High-powered Pedals Opting for a good canvas is an important decision that often makes or breaks otherwise great works of art, whether that’s literal paintings or the sonic art you make with pedals and effects. And just like a low-quality canvas can dull brilliant colors, a low-quality power supply can dull your tone. Enter Walrus Audio’s collection of sleek and slim Canvas Power supplies! The Canvas Power HP is your premier source of clean power for current-hungry modelers, multi-effect DSP processors, and combined analog/digital rigs. Canvas Power HP uses the cleanest possible architecture to keep efficient isolation and meticulous filtering as top priorities. The primary output offers a staggering 3A (3,000mA), plus 9- and 12-volt mode switching.