A self-contained unit combining two or more media players and a mixer in one chassis, requiring no separate CDJs or external mixer.
An all-in-one DJ system integrates two or more media players and a mixer into a single piece of hardware, so a DJ can play and mix from USB drives or streaming sources without connecting separate decks and a mixer. Pioneer DJ's XDJ-XZ (a 4-channel system with two internal media-player decks and two external input channels) and XDJ-RX3 (a 2-channel system) are the most common examples. The XDJ-XZ replicates a 2x CDJ-2000NXS2 plus DJM-900NXS2 club setup in a single unit; the XDJ-RX3 mirrors a simpler two-deck-plus-mixer configuration.
Why it matters
All-in-one systems reduce setup complexity, cable count, and the risk of signal chain errors, making them popular for mobile gigs, smaller venues, and home practice. Many clubs outside the top tier also install these units instead of full CDJ-plus-mixer rigs, so familiarity with the format translates directly to real bookings.
In practice
When using an all-in-one at a venue, verify that the unit's firmware matches your USB prep software's export version before the gig, as older firmware can misread beatgrids or ignore cue points written by newer software.
