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).
Novetat de la versió 2.2.4.
Canviat a la versió 2.3: Unbind Master knob from Mixxx’s Main Gain, because it controls the hardware volume.
Mixxx Sound Hardware Preferences
- Master 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) | 
|---|---|---|
| 
 | Reverse play while held | Reverse play + slip mode while held | 
| 
 | 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 | |
| 
 | Syncs the BPM and phase (depending on quantize). Press longer to activate master sync 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 | 
| 
 | Control scratching when touched from the top (Missing: temporarily bend the pitch when touched from the side) | |
| 
 | 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 | |
| 
 | CUE default | If the CUE point is set, jump to it and stops | 
| 
 | 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 | If track is loaded into corresponding slot, go to CUE point and play | If track is playing, CUE default behaviour. Otherwise eject track | 
| 
 | Speed control | |
| (19) Quantize button | Toggles quantization for both decks | |
| 
 | 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 | |
| 
 | High frequency filter | |
| 
 | Middle frequency filter | |
| 
 | Low frequency filter | |
| (26) Effect Superknob | Quick effect superknob for the corresponding deck | |
| 
 | 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 | Enable or disable effect units for both decks | |
| (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 | |
| 
 | Adjusts the crossfader between both decks |