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B2B Beta
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Set up your sound

A USB controller with rekordbox

Follow these steps in order. The app's setup takes you through the same ones.

Any issues? Email support@djb2b.com

Your gear

Pick what you DJ on. USB controller

  1. On a Mac: Plug in your controller and open your DJ software.
  2. On a Mac: In your DJ software's audio settings, set the output to your controller itself, not a combined (aggregate) device.
  3. On a Mac: Keep deck 2 empty in your DJ software. Its fader is your partner's.
  4. On a Mac: Then, in Settings → MIDI Learn, map a fader for your partner.
  5. Map your partner's fader, EQ and filter to a channel you're not playing on: your DJ software hears these knobs too.
  6. After you've taken over, pull your partner's fader all the way down for 10 seconds, and they're told they can stop: the same as pressing Partner mixed out.

Your software

Pick the DJ software you play with. rekordbox

  1. Pick rekordbox, under DJ software.

In a set, you'll see these buttons and messages:

  • READY · Set starts in · Handover · Accept handover · Partner mixed out · Fader up
  • You have control. Press Partner mixed out when you're in; your partner can stop their track.
  • Handover complete. Keep your track playing until your partner mixes you out.
  • Your partner has mixed you out. You can stop your track now.
  • After you've taken over, pull your partner's fader all the way down for 10 seconds, and they're told they can stop: the same as pressing Partner mixed out.
  • Your partner's fader is down. Push it up before you Accept.

Your internet

Use a wired connection if you can: an Ethernet cable from your computer to your router. Wi-Fi drops out more often, and a dropout can be heard in the set.

Upload speed: 5 Mbps or more, or quality may drop. The app checks both uploads when you link. On a slower upload, that DJ's part of their partner's recording is at the live sound's quality. If a connection slows during the set, the full-quality recording needs time to finish after you leave, up to 15 minutes; anything it can't finish by then is at the live sound's quality.

How a set sounds depends on both DJs' internet connections, which we don't control. We can't promise a connection will be good enough, so try a short set together first.