Voodoo ground control pro and audio swtcher

[Fronzil]

if i just run pedals, and not any rack gear, can i still use these two things to turn on/off multiple pedals at once, while changing channels? (the perset idea from JP's rig video on youtube)

 

[hazbin]

if i just run pedals, and not any rack gear, can i still use these two things to turn on/off multiple pedals at once, while changing channels? (the perset idea from JP's rig video on youtube)

yes