I saw that too. I can't help you with the Vox, but i was thinking it MIGHT work with the Peavey Classic 30. I have the original footswitch already, and it looks like pretty much the same thing but a different shaped box. The buttons are labeled the same. Does the Vox footswitch use the same type of controls? That might help you decide whether to try it. Maybe DVM or someone would have an idea if it would work with the Vox AD series.