Originally Posted by RXTX
I imagine there's a compressor somewhere in your master inserts, and the sharp transition of the Enable switch creates a short but loud click which causes the compressor to kick in.
Try using automation to briefly mute the mixer channel just before and while the switch is flipped.
lol I'm a knob. I haven't tried your solution but I think it's probably what's going on. I do have a compressor in my mastering section so it's probably going haywire from the automation because it sounds like massive over compression.
I'll have to try this today thanks