Native Instruments Traktor Kontrol S2 MK3
The Kontrol S2 MK3 is a two-channel controller with an integrated sound card. It has two integrated stereo outputs (line and 1/8” / 3.5 mm TRS), headphone outputs (1/8” / 3.5 mm TRS) and microphone inputs (1/4” / 6.3 mm TRS). The MK3 uses the standard HID protocol to send and receive signals from a computer, so it can work with Mixxx. The Kontrol S2 MK3 can run from USB bus power, and using a separate power supply has no impact on the output level or LED brightness (as opposed to the MK2).
Додато у верзији 2.2.4.
Измењено у верзији 2.3: Unbind Main knob from Mixxx’s Main Gain, because it controls the hardware volume.
Mixxx Sound Hardware Preferences
- Main output: channels 1-2 
- Headphone output: channels 3-4 
Mixxx mapping
 
Native Instruments Traktor Kontrol S2 MK3 (schematic view)
| Element | Primary function | Secondary function (+ SHIFT) | 
|---|---|---|
| 1. REV Button | Reverse play while held | Reverse play + slip mode while held | 
| 2. FLX Button | Enable and disable slip mode | |
| 3. Browse knob turn | Scroll vertically in library | Scroll horizontally in library | 
| 3. Browse knob press | Load selected track into deck | Eject current track | 
| 4. Preparation button | Add selected track to AutoDJ queue (bottom) | Add selected track to AutoDJ queue (top) | 
| 5. List view button | Toggles maximizing the library | |
| 6. Sync button | Syncs the BPM and phase (depending on quantize). Press longer to activate sync lock on that deck. | Syncs the phase to that of the other track | 
| 7. Keylock button | Enable keylock for the deck | |
| 8. Loop knob turn | Halve or double loop size | |
| 8. Loop knob press | Set a loop of the defined number of beats and enables the loop | Toggles the current loop on or off | 
| 9. Samples button | Active sampler mode (for the number buttons) | |
| 10. Hotcues button | Activate hotcue mode (for the number buttons) | |
| 11. Move knob turn | Beatjump backwards/forwards | Halve or double beatjump size | 
| 11. Move knob press | Activates a rolling loop of the defined number of beats. Once disabled, playback will resume where the track would have been if it had not entered the loop | Activate current loop, jump to its loop in point, and stop playback | 
| 12. Jog wheels | Control scratching when touched from the top (Missing: temporarily bend the pitch when touched from the side) | |
| 13. Grid button | Adjust beatgrid so closest beat is aligned with the current play position | Adjust beatgrid to match another playing deck | 
| 14. Shift button | Activates secondary functions when pressed | |
| 15. CUE button | CUE default | If the CUE point is set, jump to it and stops | 
| 16. Play button | Toggles playing | Seeks a player to the start and then stops it | 
| 17. Number buttons | Function depends on current mode | |
| Hotcue mode | If hotcue is set, seeks the player to hotcue position. Otherwise set hotcue at current position | Clear the hotcue | 
| Samples mode | Load selected track into corresponding slot. If track is loaded into corresponding slot, go to CUE point and play | If track is playing, CUE default behaviour. Otherwise eject track | 
| 18. Tempo fader | Speed control | |
| 19. Quantize button | Toggles quantization for both decks | |
| 20. Gain knob | Unmapped (adjusts the hardware gain) | |
| 21. Microphone button | Toggles microphone talkover, long press for permanent activation | |
| 22. Pre-Gain knob | Adjusts the pre-fader gain of the deck | |
| 23. HI knob | High frequency filter | |
| 24. MID knob | Middle frequency filter | |
| 25. LOW knob | Low frequency filter | |
| 26. Effect knob | Quick effect knob for the corresponding deck | |
| 27. Sample knob | Adjusts the pregain for all the sample decks combined | |
| 28. Headphone mix knob | Adjusts the cue/main mix in the headphone output | |
| 29. Headphone gain knob | Adjusts the headphone output gain | |
| 30. Effect buttons | Load preset from the Quick Effect presets list on both decks. 8 first presets from the list can be selected. Press the button once to get the first preset, press twice for the second preset. Press once (Press twice): 1 (5)  2 (6) 3 (7)  4 (8) | Load preset on selected deck | 
| 31. Headphone buttons | Toggles headphone cueing | |
| 32. Volume fader | Adjusts the channel volume fader for the corresponding deck | |
| 33. VuMeter LEDs | Show the current instantaneous deck volume | |
| 34. Crossfader | Adjusts the crossfader between both decks |