The Allen & Heath Qu range of digital mixers, have been out for a while now, but some of the features we've not heard about before. First that may be of interest is the front panel USB port - you can drop a USB drive or thumbdrive in and record direct to up to 18 multitracked audio. Without the need for an external computer. Though that is also possible via the rear panel USB port, where normal audio interface functions are available to hook up to your DAW of choice.
The QU comes in several formats:
QU-16 , QU-24, QU-32 - with the corresponding number of dedicated faders, plus the faderless options - controlled via external software: QU-SB and QU-Pac
Using Chains and automation to switch keyboard setups