Hardware (Engine OS)


Note: Engine DJ 5.1.0 is exclusive to Denon DJ PRIME 4 G2 users. A future Engine OS update may introduce support for additional hardware features, where applicable.


New Features

  • Day One update for the Denon DJ PRIME 4 G2, enabling new features and optimized performance. This update is recommended for all PRIME 4 G2 customers.
  • Onboard Stems Rendering
  • Built-In DMX Output
  • New MPCe Performance Pad Modes and improvements delivering expanded creative performance capabilities.* 
    • Auto Loop Stems – Instantly combine Auto Loops with Acapella or Instrumental stem isolation for dynamic transitions.
    • Hot Cue Stems – Trigger Hot Cues with isolated vocals or instrumentals, perfect for mashups, beat juggling, and creative remixing.
    • Hot Cue Roll – Perform expressive cue-based rolls with multiple timing divisions. 
    • XY FX – Control effect parameters in real time using MPC-style XY pad gestures. 
    • Roll FX – Combine performance rolls and effects for impactful build-ups, drops, and transitions. 
    • Quantized Stem Performance – Quantize support now extends to compatible stem-based pad modes for tighter, more precise performances.
    • Lighting Performance Overrides – Expressive control of key Engine Lighting performance effects directly from the performance pads.
    • Lighting Color & Position Overrides – Instantly access and manipulate lighting color and movement controls from the pads.
    • Lighting Autoloop Bank Control – Quickly select and manage Engine Lighting Autoloop Banks.
    • Lighting Autoloops – Trigger up to 32 lighting Autoloops directly from the performance pads. 
    • Lighting Static Looks – Access and trigger up to 32 preset lighting scenes. 
    • Enhanced Lighting Navigation – Use Parameter buttons to seamlessly switch between Engine Lighting pad modes.
  • Spotify Support Coming Soon.


*See the user manual for complete MPCe Pad Mode details and operating instructions.


Additional Enhancements

  • Added a Mirror Favorite FX Banks option, allowing FX Bank 1 and FX Bank 2 to stay synchronized when enabled. When turned off, each FX unit can have independent favorites. 
  • Added a Zone Output Limiter.
  • Pad Modes can now be accessed directly from the Performance Pad widget via the Pad Mode icon on the performance view.
  • Added a visual effect when entering MPCe performance pad modes. This can be disabled in the settings menu. 
  • You can now adjust the Noise FX level in MPCe pad modes using the Noise FX control.
  • Removed unnecessary Track End Warning notifications while scratching.
  • Added Stem EQ Soft Takeover LED feedback to Center Wheel Displays for improved visibility during performance.
  • Mixer channel input assignments are now retained after power cycling.
  • General Center Wheel Display enhancements and usability improvements.
  • Added the ability to choose whether crossfaders, channel faders, or both trigger Fader FX.


Improvements and Fixes

  • General stability and security improvements.



Software (Engine Desktop)

New Features

  • N/A


Improvements and Fixes

  • Improved drag-and-drop performance for faster and more responsive track management.
  • Fixed an issue where selecting Remove Stems from Collection did not remove stems that were actively rendering or queued for rendering.
  • Improved Auto-Relocate Lost Files performance by prioritizing relocated files found in common user folders, such as Music and Documents, even when duplicate copies exist across multiple drives.
  • Fixed an issue where Re-import Track Information could unintentionally remove track artwork.
  • Fixed a graphics rendering issue on Windows 10 and Windows 11 that could cause application instability.
  • Improved reliability during large database migrations to prevent potential freezes or crashes.
  • Fixed a startup issue that could occur when a corrupted database file was present.
  • Improved loading performance for third-party music libraries in Engine DJ Desktop.
  • General stability and security improvements.