BEHRINGER WING RACK: The Wing Rack is a 19-inch rackmount version with the same 24 xXLR inputs/eight outputs. It's 4RU, so the screen is quite big(10.1-inch) and the fold-out front panel angles up for comfortable access to the screen and user control section. There's a headphone socket with selectable source on the front panel. Round the back there's another four headphone sockets, their flexibility is somewhat limited by being tied in pairs to Aux sends 1-8 but they'd still be handy for 1EMs an