Reply to Audio 2 DJ to passive speakers?

I have a Macbook pro 13in, VCI 100 se, audio 2 dj and I want to get behringer b1520's or 215xl's. My question is, do i also need an amp to connect the speakers? I understand that the audio 2 DJ has 2 1/4in TRS cables but i would like to use one for my headphones and the other to connect to the speakers but the speakers have xlr input only. That's another thing, what if i want to connect it to two speakers? do i have to get some type of split? Sorry if this has been asked before but i have been using regular computer speakers to practice but i want to step outside of being a bedroom DJ and i need help! thanks!