This array of volume pedals at the front of Herring’s stage carpet allows him to control what he’s hearing in his monitors without using his hands. He got the system while touring with the Dead in 2000. “I was finding myself for the first time on really big stages, and asked their soundman, Dennis Leonard, who they call ‘Wiz,’ if he could build something better for me than one of those monitors you have to control by hand. This keeps me from having to think about anything while I play.”