• gemini-MDJ-900-professional-usb-media-player

MDJ-900 – Professional USB Media Player

V-Case: Music Management Software. Available Now

Looking for a convenient media controller that practically does the work for you? The MDJ-900 is expertly designed to focus on ease of use – meaning you’ll spend less time learning and more time pushing this unit to its full potential.

Dramatic Accuracy

A large 4.3-inch vivid full-color screen is the brilliant focal point of this unit, providing real-time visual feedback of your tracks. Full track information including Title, Time, BPM, and Pitch are clearly displayed alongside the precise full-size waveform window. You’ll appreciate the additional visual feedback for Slip Mode, Hot Cues and Auto/Manual Loops meaning you can confidently use scratches or hot cues without ruining your mix. The 100mm pitch fader ranges pitch from 4% to 100%; you’ll mix with surgical precision.

Expand Your Style

LINK mode enables up to 4 players to be connected over Ethernet and share music from the same USB stick. Two players can connect with standard Ethernet, and four players can quickly and simply connect via a LAN Router. Sharing your personal music library may have gotten easier, but we guarantee it’s just the beginning of what you can do.

Connecting four MDJ-900s may seem daunting, so enable SYNC and match the tempos for a smoother mixing experience. This will free up precious time for you to experiment with the 4 Hot Cues, 8 Auto Loops, and the 8″ touch-sensitive jog wheel with LCD display and resistance control to Slip and Scratch. With bonus MIDI capabilities, you can even control the parameters of your favorite DJ software directly from the unit, routing your audio through its 24-bit/192kHz soundcard.

MDJ-900 Features

  • Flagship-quality USB media player with 4.3″” color screen, moving waveform, and onboard search and analysis
  • 8″ ultra-high resolution capacitive touch platter with center display delivers professional quality performance
  • Network linking opens up features like library sharing and BPM sync between units
  • Extensive auto-looping support includes 8 auto loops, loop roll mode, and dividing or multiplying loop lengths to create that perfect build
  • Up to 4 hotcues per track give you instant access to those important parts of your music
  • Built-in Hipass / Lowpass filter gives you unique mixing possibilities not found on other products
  • The smooth 100mm pitch fader and adjustable pitch ranges from 4% to 100% let you mix with surgical precision
  • Adjustable platter tension and start / stop times let you dial in the feel that’s perfect for you
  • Multiple platter modes available, including slip mode, reverse play, vinyl, and stutter cue
  • MIDI Mode turns your MDJ-900 into the ultimate platter controller – complete with on-screen deck info* (*in Virtual DJ)
Firmware Update

Please download the Gemini Updater software for your operating system.

To update: connect your MDJ to your computer via USB, enter MIDI mode and open this software to check for updates.

PC: Download Here
MAC: Download Here

Release Notes


Fixed bugs:

  • Added feature to double or halve the BPM value of the current track
  • Added Platter Nudge sensitivity setting
  • Added setting to control auto track analysis
  • Added Continuous Play setting
  • Added setting to swap SYNC and MASTER between shifted and primary functionality
  • Added setting to control Slip mode behavior
  • Added setting to show or hide track info panel in the Browser
  • Added shifted function for platter to quickly scroll through a track
  • Added compatibility for new version of V-Case
  • Improved button debounce performance
  • Improved waveform rendering and sync with audio playback
  • Various bug fixes and stability improvements


Fixed bugs:

  • Added feature for MDJ-600 to automatically close the CD tray if left open for 60 seconds.
  • Added ability to adjust the beat offset of synced songs without altering the tempo (to fix phrasing issues). Now you can nudge the platter to align beats without changing the pitch.
  • Added the capability of using SHIFT+JOG PLATTER to search through songs quickly. Playback resumes when user releases the SHIFT button.
  • Fixed bug in song counter – no longer counts folders as songs.
  • Improved button performance to help eliminate double triggers.


Fixed bugs:

  • Created new beat sync engine for improved sync between networked players
  • Added option to swap behavior of SEARCH buttons to MASTER/SYNC
  • Added option in settings for continuous play
  • Added more on-screen information when in MIDI mode
  • Added option to turn automatic BPM analysis on or off in settings
  • Added FILE NAME to text mode options
  • Fixed autoloop sizes smaller than ½ beat
  • Optimized the waveform display
  • Optimized hotcue performance
  • Fixed several BPM display issues
  • Reduced lag when scrolling through large libraries
  • Various small fixes and performance adjustments


Fixed bugs:

  • Fixed slow buffering issue when using SEARCH buttons

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About Gemini

History has always been an important part of the Gemini Culture.

Since 1974, we've provided innovative products for DJs, musicians, sound contractors and professional installers around the globe.