With the CDJ-900, the operating information of the buttons, tempo adjustment dial, etc., can also be output in universal MIDI format. When connected by USB cable to a
computer on which MIDI-compatible DJ software is installed, the DJ software can be operated from the CDJ-900. The sound of music files being played on the computer
can also be output from the CDJ-900. For details, see About the driver software on page 24 and Using other brands of DJ software on page 25.
! Connect a computer on which Mac OS X (10.4.6 or later), Windows Vista
Connections for relay play
Relay play between two DJ players is possible by interconnecting the CDJ-900 and a Pioneer DJ player using the CONTROL jacks (page 17).