Hercules DJControl Inpulse 300

New in version 2.2.4.


This controller is a class compliant USB MIDI and audio device, so it can be used without any special drivers on GNU/Linux, Mac OS X, and Windows. However, if you wish to use the ASIO sound API under Windows, please install the latest driver package available from the Support page.


Firmware upgrade (v1.72) is required for pads to work correctly in FX Mode.

When using Firmware v1.68 and earlier, pads in FX Mode will not work as expected.

For more details about upgrading the Firmware.

Sound card setup

This controller has built-in 4 channel output sound card, with MAIN output (RCA) and HEADPHONE output (3.5mm jack).

  • Open Preferences > Sound Hardware

  • Select the Output tab

  • From the Main drop-down menu, select the audio interface, then Channels 1-2

  • From the Headphones drop-down menu, select the audio interface, then Channels 3-4

  • Click Apply to save the changes.

See also

The example setups section provides more details about the audio configuration in Mixxx.


The Master and Headphone knobs, as well as the Master button are hardware controls and interact directly with the integrated sound card’s output. Although they also send MIDI messages, they have NOT been mapped in Mixxx, so do not expect an on-screen reaction when using them. This was done to prevent the knobs to adjust both the gain on the controller’s sound card and in Mixxx.

Mapping description




SYNC button

Toggle Sync Lock.

SHIFT + SYNC button

Set deck as Sync leader.

CUE button

Specifies, plays or recalls temporary cue point.

SHIFT + CUE button

Return to the beginning of the track.

Play button

Play/Pause the current track.

SHIFT + Play button

Cue Stutter.

VINYL button

Toggle scratch mode (default: on)

Loop IN button

Enable Beatloop 4 beats.

SHIFT + Loop IN button

Halve the current loop size.

Loop OUT button

Disable Beatloop.

SHIFT + Loop OUT button

Double the current loop size.

Beat Align LED

Track end warning (make sure BEATMATCH GUIDE is on for this to work).


Toggles splip mode.


Toggles quantize.


Adjusts beatgrid so closest beat is aligned with the current playposition.




BROWSER encoder (turn)

Move up/down list.

SHIFT + BROWSER encoder (turn)

Move left/right (fold/unfold) list.

BROWSER encoder (press)

Switch focus between list and file view.

SHIFT + Encoder (press)

Maximize/Minimize library view.


Toggle AutoDJ (be sure a playlist was created for AutoDJ before activating this function).




ON pad

Toggle FX 3 on/off.

SHIFT + ON pad (select)

Cycle to the next effect after the currently loaded effect.

Performance Pads

Hot Cue Mode



Pad 1 - 8

Set and trigger hotcue 1 - 8

SHIFT + Pad 1 - 8

Delete hotcue 1 - 8.

Roll Mode



Pad 1

Activate Beatloop of 1/8 beat size.

Pad 2

Activate Beatloop of 1/4 beat size.

Pad 3

Activate Beatloop of 1/2 beat size.

Pad 4

Activate Beatloop of 1 beat size.

Pad 5

Activate Beatloop of 2 beat size.

Pad 6

Activate Beatloop of 4 beat size.

Pad 7

Activate Beatloop of 8 beat size.

Pad 8

Activate Beatloop of 16 beat size.

FX Mode



Pad 1 - 3

Toggle Effect 1 - 3.

Pad 5 - 7

Cycle to the next effect for Effect 1 - 3.

Pad 4

Toggle Effect Unit 1.

Pad 8

Toggle Effect Unit 2.

Shift + Pad 1 - 3

Toggle Effect 1 - 3. (Effect Unit 3 / 4 for deck A / B)

Shift + Pad 5 - 7

Cycle to the next effect for Effect 1 - 3 (Effect Unit 3 / 4 for deck A / B).

Shift + Pad 4

Toggle Effect Unit 3.

Shift + Pad 8

Toggle Effect Unit 4.

Sampler Mode



Pad 1 - 8 (deck A)

Trigger Sampler 1 - 8.

Pad 1 - 8 (deck B)

Trigger Sampler 9 - 16.

Beatjump Mode



Pad 1 - 2

Jump backward/forward by 1 beat.

Pad 3 - 4

Jump backward/forward by 2 beats.

Pad 5 - 6

Jump backward/forward by 4 beats.

Pad 7 - 8

Jump backward/forward by 8 beats.

Known issues

Controls not included in this mapping

  • Master knob (Hardware control)

  • Headphone knob (Hardware control)

  • Master buttons (Hardware control)

  • Beatmatch guide (Hardware control)

  • PADS: Slicer/Slicer Loop

  • PADS: Toneplay