Is there an alternative to the AUDIO 4 DJ?
Unfortunately, this is no longer supported by support.
Can I possibly use Traktor with the AUDIO 2?
You can buy a used Audio 6.
Or if you want something new: Reloop Flux
Addition: Or a Pioneer Interface 2
Or a MOTU M4, assuming you don't need phono inputs for DVS.
Denon DS-1