Reply to mixer that can perform like controller and analogue mixing?

Hi all!
i'm currently looking to build a system that requires u guys out there to give some advices! thx in advance!

i'm looking for a mixer that can do the following:
1. as a midi controller to control traktor pro/traktor scratch pro (preferably 4 channels mixer with knobs)
2. can feed it with 2 turntables that use time coded vinyl
3. act as a stand alone mixer with 2 turntables or CD players if traktor fails or my computer exploded or something ... hahahahaha

is there anything out there that can actually do this?

i like the xone 4d but it seems it's entire digital and must work with a DJ software.

help me guys....

thx again!