Currently I have no equipment, but i plan on building up a very basic home studio and home DJing setup. The first thing i want to buy is a set of self powered studio monitors (KRK Rokit RP5's).

I was told I need an audio interface between the computer and the monitors for decent sound quality.

After looking into DJ decks and DJ mixers I have noticed that some of the mixers have a built-in audio interface.

Would it be wise to save money by hitting 2 birds with one stone and just get one of these mixers (have my eye on the Allen & Heath Xone:23C mixer)? 

This way i could get my monitors working with good quality for now and in the future when I build my dj setup I will already have the dj mixer, thus saving me money in the long run!

Would I be compromising on the sound quality if I played music like this:

**PC -> mixer (with audio interface) -> studio monitors**

instead of this:

**PC -> audio interface -> mixer -> studio monitors**

or this:

**PC -> audio interface -> studio monitors**