Reply to HELP! Connection Turntables + Audio 6 + Speakers

I have a set of KRK rokit 5s, two technics 1210s and a Traktor S4 at the moment but am moving to a proper mixer and DVS setup using an Audio 6.

At the moment I route my turntables into the S4, and then output audio from my S4 to KRK Rokit's using 1/4 balanced jacks.

SO

I understand I route the two turntables through the audio 6/mixer which sends the signals to my laptop. But do I then output audio to my speakers from the mixer or from the audio 6?

Also I presume I am going to need new cables to output to the speakers, if I output from the mixer I presume XLR cables would be the one?

Thanks! Sorry if this is a silly question I just need to make sure!