Just to clarify we are talking about an input mute (on/off) that only mutes the input from the output so you can still record the input without passing it through the box (via MIDI and a special button press)...right? Respect, Damon Langlois Creative Director Electrix Tel (250) 544-4091 Fax (250) 544-4100 http://www.electrixpro.com