For example: crossfader A/B (this is, post-crossfader output) to a DAW when working in internal mix mode.
With my Z2 (and Windows), I had to route my DAW to play the reference track to USB 3/4 outputs (headphones) and set the record input to the USB 7/8 (master in), so I can hear the reference, but without mixing the scratching to the recording track in my DAW. And apply a gain of +13~14 dB each time to the recording channel because the Z2 records so low. It would be awesome to be able to avoid things like this.
Another way to tell this: to add the possibility of using Traktor for music production, but as a complement, not a whole.
Note: I know it's possible to play the reference in another audio interface on a Mac. on Windows, with ASIO, that's not possible. (And I want to avoid using RCAs, converting D/A to then A/D again)
