[Badwithpeople]

That's exactly what I wanted to do. I have the headphone set to mute the Main output when the plug is inserted (that part at least works). The 2301s are hooked up to Triggers 1 and 2. I then set the triggers to work with the main output. I thought that would power off the amps when I inserted the headphone cable. My reasoning is as follows: Cable insertion --> mutes the Main output -->Main output muted --> powers off triggers 1 and 2, or so I thought that's how it would work. But apparently not, or maybe I got something wrong, or as Masterlu says, it's not possible. If you actually got it to work I'd appreciate you letting me know how to set it up when you get back to your place. Thanks, have a good night.