正式なコメント
@iSolitaire > Sorry for the delay in getting back to you, and I'm happy to hear that your issue was resolved. For others finding this post, I'll note that there is an announcement along side the drivers:

Hi
I have the same issue on the closed post "driver not installing on Mac OS Sierra"
I tried the solution suggested there, and everything goes as mentioned on the pdf, but when I look to the sound devices there is no ddj-rb there.
I used the last drivers from the site
Allowed the drivers from Security and privacy
I checked the usb drivers and those are installed for ddj-rb correctly, rekordbox is working perfectely but only with the MacBook internal sound device/speakers.
Mac OS 10.13.4
Please advice
@iSolitaire > Sorry for the delay in getting back to you, and I'm happy to hear that your issue was resolved. For others finding this post, I'll note that there is an announcement along side the drivers:

投稿コメントは受け付けていません。
Hi
any advice?
Tnx
Hi and thank u you for the quick response pioneer mwhahaha...
Like old man said, if you have to get things done, you have to do it your self :)
https://www.igeeksblog.com/how-to-disable-system-integrity-protection-on-mac/
Cheers