Our initial tests show that some issues occur when running the following products under OS X El Capitan. We therefore cannot recommend our customers to update to OS X El Capitan.
DJ Mixer
DJM-S9 / DJM-2000NXS / DJM-2000 / DJM-900NXS / DJM-900SRT / DJM-850 / DJM-750 / DJM-T1 / DJM-5000
DJ Controller
DDJ-RZ / DDJ-SZ
DJ System
XDJ-AERO / XDJ-RX
Remix Station
RMX-500
Multi Player
MEP-7000