Mixer through Interface recording?


Senior Member
Hey all, i was watching a cover on Youtube when i noticed that this guy is using an interface with 2 mic ins, with a 16 channel mixer running through it. I was wondering how would this be done, b/c wouldnt it be cheaper getting a 2 channel interface and a mixer? But even if it is still more expensive, can anyone tell me how it is done, thanks. Heres a link...http://www.youtube.com/watch?v=L3LKcSkheVk it shows the recording set-up starting at 2:20 i think.. thanks
b r a d