How to connect XDJ RX and Macbook AIR to live transmission on Facebook

So i don't need the music card USB? Only that i need is soundflower?

Did i must plug my Macbook Air and XDJ RX by USB? Or can i use only LINK?

Were you planning on using it via link? The instructions I provided are for using rekordbox in PERFORMANCE mode and yes, you'd need to install Soundflower.

I have a problem i've ready download Soundflower-2.0b2.dmg but there is a problem when i installed them.

At the end of instalation wrote" the instalation cannot be done"

Ok i've already download and install soundflowe.

Also i do it the same in instruction: the instructions here 

But the sound doesn't play in output:

Please help!

That's because your XDJ-RX drivers are not properly installed. See how it shows it as being a 0-input / 0-output device?

Follow these instructions to reinstall your drivers and allow it through the OS security:

1. Disconnect the XDJ-RX.
2. Download the driver.
3. Open the driver package and run the uninstaller file.
4. Reboot your computer.
5. Open the driver package and run the driver installation file.
6. After the installation has completed, give the drivers permission.
7. Reboot your computer.
8. Connect the XDJ-RX and test as normal.

I do this what you write upper. But in in OBS also i don't have sound ( photo)

And i take  screen from midi settings and rekordbox:

I seem to be having the same error as above with my XDJ-RX2. I downloaded the drivers, and followed the instructions above, but I still see 0 output / 2 input for my device. My end goal is to send the audio directly from my XDJ into OBS for streaming on Twitch. IE. I want to bypass Rekordbox. Any ideas? (Right now I'm running Mac OS Catalina.

Thank you! :) 

@avanniekerk > The XDJ-RX2 does not feature an audio input; if you want to stream, you'll need another audio interface to act as a capture device.