If the Qu16 or Qu32 could be upgraded somehow to be used as a multitrack interface to a computer, it would be the perfect beast for live mixing AND studio recording and I simply would have to buy one tomorrow! 🙂
It doesn’t really need to have multitrack playback simultaneously as multitrack record down the USB cable – this is asking too much of the USB bandwidth.
I would be happy with the ability to record up to 16 channels simultaneously into Logic 9 via USB, then send the pre-recorded tracks out of the computer’s internal audio port as a stereo signal back into the mixer – into a stereo input or tape return input – for monitoring purposes whilst recording up to another 16 tracks of audio through the desk via USB as overdubs.
I think Logic can have multiple audio devices as ins/outs for routing as an ‘aggregate’ device, so there is potential for this to be a reality.