Hi
1. I’m not sure how this would work; the channel and DCA mutes are separate, so if you press the mute key while a channel is muted by a DCA group, that channel will then remain muted once the DCA mute is released. There’s no way currently to momentarily remove a channel from a DCA group by holding a button.
2. You can see reasonably well in the front page of the brochure here that the mute key is now larger, and separated out from the other channel strip buttons. This matches what we did on GLD, based on feedback from iLive users.
3. The headphone sockets are under the arm rest. There is one at each end of the desk for the 5000 and 7000 sizes, and the 3000 size has one socket towards the left hand side, again under the arm rest.
– Jeff