HDJ-700 headphones don’t work when playing on my DDJ-RB also speakers don’t work unless I connect them to MacBook headphone jack.

I just got my DDj-RB starter pack table that came with the HDJ-700 headphones and the DM-40 speakers and downloaded rekordbox on to my MacBook Air but it is not letting me listen to music when I put The headphone into the jack. Also, when I connected the speakers and directly fed them to the DDj-RB it won’t play anything only on my MacBook. I have the macOS high Sierra version 10.13.6 and have seen that other people have the same problem as me but they all have windows or I don’t have the driver software that it’s asking for. Please help. I’m in love with everything so far for it not to work.