Voodoo Lab

I had the same problem with a loud hum when Morley Bad Horsie 2 contour wha was used with my Power Plus 2. All were mounted in/on Dingbat pedalboard. Didn't matter where I placed the Bad Horsie on the small pedalboard, always hummed when activated.

Solution: Move Bad Horsie pedal about 4 feet from the Dingbat pedalboard. I still used the Power Plus 2 as my power supply with a 6 power cable. I connected Bad Horsie to my pedal board with standard guitar cables, each about 6 feet long. Dead quiet, problem solved. I wanted to share in case others had this problem. It is a minor inconvenience compared to the annoying hum I had been getting.