Bare minimum equipment for DJing:
Helpful but not strictly necessary:
To be able to hear the next track you want to mix in before your audience hears it, you need two separate sound outputs. It is recommended to use one sound card with at least 4 mono output channels (2 stereo channels). Most computers come with a sound card built into the motherboard with only 1 stereo 1/8“ headphone output (2 mono channels). While it is possible to get a splitter cable or cheap sound card with only 2 more outputs and use it together with your onboard sound card, it is not recommended (see explanation below). Onboard sound cards built into computers are generally not high quality and may pick up interference from other devices in the computer such as the power supply or hard drive. When mixing digitally in software on your CPU, use 2 channels for Mixxx's Master output and 2 channels for Mixxx's headphone output (or 1 for each if using a splitter cable). When mixing on an analog hardware mixer, which is traditional (but not necessary) with vinyl control, Mixxx sends the unmixed output from each deck to the hardware mixer (using 2 channels per deck) and the headphones are plugged into the hardware mixer.
Most digital DJs prefer to use a DJ controller rather than just their keyboard and mouse for more intuitive control of their software. Most DJ controllers that cost $200 or more bundle a sound card with the controller. Cheaper controllers are available without integrated sound cards.
The simplest setup for new DJs is an all-in-one controller that can control mixing, seeking, looping, cues, and effects and has an integrated sound card. Users who want to use vinyl control will need a sound card with 2 inputs per deck (so 4 inputs for a traditional 2 deck setup) and a phono preamp for each deck. The phono preamps can either be in the turntable, in the sound card, or stand alone devices. A few small controllers may be of particular interest to vinyl DJs, particularly the Novation Dicer and Akai AMX. Some higher-end all-in-one controllers include sound cards with phono preamps. Users who also want to produce music should consider saving money and get a controller without a sound card and getting a separate, high quality sound card suitable for recording.
DJ headphones are generally better quality than typical consumer headphones. Importantly, they are designed to have good isolation, meaning they block outside sound. This allows the DJ to focus on the sound in the headphones better without having to turn up the volume to drown out sound from the monitors, PA system, and chatter. Also, DJ headphones have hinges or flexible headbands that allow the DJ to take off one headphone cup to hear the monitor or PA output better in one ear and compare it to the headphone output in the other ear. When shopping for headphones, consider how well they isolate sound and their durability. The most frequent places that headphones break are the cable attachment point and the headband. Look for headphones with detachable cables, metal headbands, and other individually replaceable parts.
In-ear monitors isolate sound better than headphones but are more expensive. Good DJ headphones can be purchased new for $150-250; IEMs with comparable sound quality cost $350-$1000. They may be a sound investment for musicians who play often in very loud environments to preserve their hearing.
These are all just guidelines; research your options and decide what you think will work best for the way you want to DJ.
See the manual for diagrams and descriptions of setups with different kinds of hardware.
See the Beginner DJ Links page for more helpful resources.
Because Mixxx is free software — free as in artistic freedom, not just price — we strive to make it work with as much hardware as we can. Mixxx is collaboratively developed by a community of volunteers and we can only make mappings for controllers that we have. If hardware does not work with Mixxx, that does not mean it is impossible, it only means that no one has made it work with Mixxx yet. Anyone, including you, who has the hardware is welcome to make Mixxx work with it.
Unlike some proprietary DJ programs, Mixxx works with any sound card that your operating system has a driver to use. USB sound cards compliant with the USB audio class standard do not need any special drivers on Linux or Mac OS X, but they do on Windows. Most USB sound cards are not class compliant. Sound cards that are advertised for use with iOS devices are class compliant.
Mixxx can work with any controller that sends MIDI or HID signals to your computer; it just needs a controller mapping to tell Mixxx what to do with the signals. Standards compliant MIDI controllers do not need any special drivers on Linux, Mac OS X, or Windows. Standards compliant HID controllers do not need any special drivers on Linux and Mac OS X, but do require drivers on Windows. Most DJ controllers are standards compliant MIDI controllers, with exceptions noted in the tables below. Controllers that have integrated sound cards require a driver on every OS for the sound card, unless it is USB audio class compliant.
Mixxx can be made to work with any standards compliant USB MIDI or USB HID controller by mapping the controller's signals to manipulate controls in Mixxx. The Mixxx developers and community have made a number of mappings for MIDI and HID controllers. There are two different levels of controller support in Mixxx:
If you notice any bugs in the mappings, or wish the mapping would work differently, please report it on our bug tracker.
Please update these tables as mappings are added to Mixxx. Keep the tables sorted by price and move devices to the bottom of the table when they are discontinued (keep the discontinued sections sorted alphabetically). Be sure to add specifications for the sound cards of controllers with integrated sound cards to the table towards the bottom.
Click the name of the controller for more information.
|Device||Price (USD) 1)||Description||Integrated Sound Card||Signal protocol||Supported since Mixxx version|
|Keith McMillen QuNeo||$250||2 deck all-in-one||no||MIDI||1.11|
|Hercules DJ Console RMX 2||$300||2 deck all-in-one||yes||MIDI||1.11|
|Allen & Heath Xone K2||$300||4 deck mixer + pads||yes||MIDI||1.11|
|American Audio VMS4/4.1||$400||4 deck all-in-one||yes||MIDI||1.9|
|Reloop Terminal Mix 4||$400||4 deck all-in-one||yes||MIDI||1.11|
|DJ TechTools MIDIFighter Classic||discontinued||4×4 spring-loaded arcade button grid 2)||no||MIDI||1.8|
|Denon HS5500||discontinued||2-decks-in-1 CD player with motorized platter||yes||MIDI||1.12|
|Hercules DJ Console Mk2||discontinued||2 deck all-in-one||yes||HID||1.11|
|Hercules DJ Console RMX||discontinued||basic 2 deck all-in-one||yes||HID||1.11|
|Hercules DJ Control MP3 e2||discontinued||basic 4 deck all-in-one||no||MIDI + HID||1.11|
|M-Audio X-Session Pro||discontinued||2 deck mixer||no||MIDI||1.6|
|Reloop Terminal Mix 2||discontinued||4 deck all-in-one 3)||yes||MIDI||1.11|
|Stanton SCS.3d||discontinued||1 deck control 4)||no||MIDI||1.7|
|Stanton SCS.3m||discontinued||2 deck mixer 5)||no||MIDI||1.7|
|Stanton SCS.1m||discontinued||4 deck mixer||yes||HSS1394 (MIDI)||1.9|
|Stanton SCS.1d||discontinued||1 turntable 6)||no||HSS1394 (MIDI)||1.9.1|
|Vestax VCI-400||discontinued||4 deck all-in-one||yes||MIDI||1.10.1|
All controllers listed are supported on GNU/Linux, Mac OS X, and Windows unless otherwise indicated by a footnote in the signal protocol column. If your controller is listed here but does not work with your OS, please report the bug. All of these devices have mappings included in Mixxx. There may be other mappings more suited to your workflow on the forum.
Do not add mappings to this list until they have been included in Mixxx. If you make a mapping for a controller, please add it to the Mappings In Development table and make a pull request on GitHub to include it in Mixxx when it is ready. When the pull request is merged, move your controller to this table.
|Device||Price (USD) 7)||Description||Integrated sound card||Signal protocol||Supported since Mixxx version|
|Numark DJ2GO||$60||basic 2 deck all-in-one||no||MIDI||1.10|
|Korg nanoKONTROL 2||$60||hotcues + samples||no||MIDI||1.11|
|Akai LPD8||$70||basic 2 deck all-in-one||no||MIDI||1.10.1|
|Novation Dicer||$70||hotcues and loops for use with turntables||no||MIDI||1.10|
|Novation Launchpad Mini||$75||hotcues, loops, transport||no||MIDI||1.12|
|Electrix Tweaker||$100||4 deck mixer8) + transport + loops + hotcues + samplers||no, but 5-pin MIDI I/O included||MIDI||1.12|
|Behringer BCD3000||$100||basic 2 deck all-in-one||yes||MIDI||1.6|
|Hercules DJ Control Instinct||$125||basic 2 deck all-in-one||yes||MIDI||1.10.1|
|Pioneer DDJ-SB||$250||4 deck all-in-one9)||yes||MIDI10)||1.12|
|American Audio VMS2||$250||2 deck all-in-one||yes||MIDI||?|
|Numark N4||$500||4 deck all-in-one||yes||MIDI||1.10|
|Denon MC6000MK2||$700||4 deck all-in-one||yes||MIDI||1.12|
|Pioneer CDJ-850||$900||CD player||no||MIDI or HID||1.10 (MIDI), 1.11 (HID)|
|Pioneer CDJ-2000||$2000||CD player||no||MIDI or HID||1.10 (MIDI), 1.11 (HID)|
|Akai MPD24||discontinued||2 deck mixer||no||MIDI||1.8|
|Behringer BCD2000||discontinued||basic 2 deck all-in-one||yes||MIDI||1.11|
|American Audio Radius 1000 / 2000 / 3000||discontinued||CD player||no||MIDI||1.10|
|Denon SC2000||discontinued||1 deck||no||MIDI||1.8|
|DJ Tech CDJ-101||discontinued||2 deck jog wheel||no||MIDI||1.11|
|DJ Tech DJM-101||discontinued||2 deck mixer||no||MIDI||1.11|
|DJ Tech iMix Reload||discontinued||2 deck all-in-one||no||MIDI||1.10|
|DJ Tech Kontrol One||discontinued||4 decks||no||MIDI||1.11|
|DJ Tech Mixer One||discontinued||2 deck mixer||no||MIDI||1.10.1|
|eks Otus||discontinued||1 turntable + 2 deck mixer||yes||HID||1.11|
|Evolution X-Session||discontinued||knobs + crossfader||no||MIDI||1.6|
|FaderFox DJ2||discontinued||2 deck mixer||no||MIDI||1.6|
|Gemini FirstMix||discontinued||basic 2 deck all-in-one||no||MIDI||1.11|
|Kontrol DJ KDJ500||discontinued||basic 2 deck all-in-one||no||MIDI||1.10|
|Korg nanoKONTROL||discontinued||2 deck mixer||no||MIDI||1.8.2|
|Hercules DJ Control Steel||discontinued||2 deck all-in-one||no||HID||1.11|
|Hercules DJ Console Mk1||discontinued||2 deck all-in-one||yes||HID||1.11|
|Hercules DJ Console Mac Edition||discontinued||2 deck all-in-one||yes||MIDI 11)||1.7|
|Hercules DJ Console Mk4||discontinued||2 deck all-in-one||yes||HID 12)||1.8|
|Hercules DJ Control MP3||discontinued||2 deck all-in-one||no||HID||1.11|
|Ion Discover DJ||discontinued||2 deck all-in-one||no||MIDI||1.8|
|M-Audio Xponent||discontinued||2 deck all-in-one||yes||MIDI||1.6|
|Mixman DM2||discontinued||2 decks||yes||MIDI 13)||1.7|
|Mixvibes U-Mix Control 2||discontinued||2 deck all-in-one||no||MIDI||1.10.1|
|Mixvibes U-Mix Control 2 Pro||discontinued||2 deck all-in-one||yes||MIDI||1.11|
|Novation Launchpad Mk1||discontinued||2 deck mixer, hotcues, loops||no||MIDI 14)||1.11|
|Numark Mixtrack Pro II||discontinued||2 deck all-in-one||yes||MIDI||1.11|
|Numark Omni Control||discontinued||2 deck all-in-one||yes||MIDI 15)||1.10|
|Numark Total Control||discontinued||2 deck all-in-one||no||MIDI||1.6|
|Numark Mixtrack||discontinued||2 deck all-in-one||no||MIDI||1.8.2|
|Numark Mixtrack Pro||discontinued||2 deck all-in-one||yes||MIDI||1.10|
|Numark NS7||discontinued||2 deck all-in-one with motorized wheels||yes||MIDI||1.9|
|Numark V7||discontinued||2 deck motorized wheel||yes||MIDI||1.10|
|Pioneer CDJ-350||discontinued||CD player||no||MIDI or HID||1.8.2 (MIDI)|
|Reloop Digital Jockey 2 Controller Edition||discontinued||2 deck all-in-one||yes||MIDI||1.8|
|Reloop Digital Jockey 2 Master Edition||discontinued||2 deck all-in-one||yes||MIDI 16)||1.8|
|Tascam US-428||discontinued||mixing console||yes||MIDI||1.6.2|
|Vestax VCI-100||discontinued||2 deck all-in-one||yes||MIDI||1.6|
|Vestax VCI-300||discontinued||2 deck all-in-one||yes||MIDI||1.11|
|Vestax Typhoon||discontinued||2 deck all-in-one||yes||MIDI||1.9|
|Vestax Spin||discontinued||2 deck all-in-one||yes||MIDI||1.9|
These are devices that were not designed for DJing but have been mapped to Mixxx anyway.
These controllers have Mixxx mappings under active development. If you are considering getting one of these controllers, you are encouraged to do so. You can help the development of the mapping by testing it and providing feedback to the developer. You can also edit the mapping yourself. Click the name of the controller for more information.
This is by no means an exhaustive list; these are just DJ controllers from popular brands. There are too many DJ controllers out there to list. Some of these controllers may have mappings (of unverified quality and may be incomplete) posted on the forums that have not (yet) been included with Mixxx. If a controller you own or are interested in getting is not listed here, search the forum to see if anyone has posted a mapping. If you are willing to put in the effort to map one of these controllers, please get the controller, map it, and publish the mapping so we can include it in Mixxx. MIDI controllers are easier to map than HID controllers.
|Device||Price (USD) 19)||Description||Integrated sound card||Signal protocol|
|Behringer CMD MM-1||$100||4 deck mixer||no||MIDI|
|Numark Mixtrack Edge||$100||2 deck all-in-one||no||MIDI|
|Novation Launchpad Mk2||$100||8×8 RGB button grid||no||MIDI|
|Novation Launchpad S||$125||8×8 3-color button grid||no||MIDI|
|Numark Mixtrack 3||$150||2 deck all-in-one||no||MIDI20) (and HID?)|
|Native Instruments Traktor Kontrol Z1||$200||basic 2 deck mixer||yes||HID|
|Native Instruments Traktor Kontrol F1 21)||$200||remixing pads + faders||no||HID|
|Native Instruments Traktor Kontrol X1 Mk1||$200||effects||no||NHL|
|Native Instruments Traktor Kontrol X1 Mk2||$200||effects + touch strip||no||HID|
|Gemini Slate||$200||2 deck all-in-one||yes||MIDI|
|American Audio MXR 10||$200||2 deck analog mixer + MIDI library browsing and transport||yes||MIDI|
|Akai AFX||$200||2 deck effects + pads + touch strip||no||MIDI|
|DJ Tech Tools MIDI Fighter Spectra||discontinued||4×4 spring-loaded arcade button grid with LED rings||no||MIDI|
|DJ Tech Tools MIDI Fighter 3D||$220||4×4 spring-loaded arcade button grid with LED rings + 3D motion sensing||no||MIDI|
|DJ Tech Tools MIDI Fighter Twister||$220||4×4 encoder grid with LED rings and push buttons and multicolor LEDs||no||MIDI|
|Akai AMX||$250||2 deck mixer + vinyl hookup||yes||MIDI|
|Allen & Heath Xone K1 22)||$250||4 deck mixer + pads||no||MIDI|
|Gemini Slate 4||$250||4 deck all-in-one||yes||MIDI|
|Pioneer DDJ-SB2||$250||4 deck all-in-one||yes||MIDI|
|American Audio MXR 14||$300||2 deck analog mixer + MIDI library browsing and transport||yes||MIDI|
|Hercules DJ Control Jogvision||$300||2 deck all-in-one||yes||MIDI/HID (either? both?)|
|Korg KAOSS DJ||$300||2 deck all-in-one||yes||MIDI|
|Novation Launchpad Pro||$300||8×8 RGB velocity-sensitive button grid||no||MIDI|
|Reloop Beatmix 2||$300||2 deck all-in-one||yes||MIDI|
|Pioneer DDJ WeGO 3||$300||2 deck all-in-one||yes||MIDI|
|Reloop Beatmix 4||$400||4 deck all-in-one||yes||MIDI|
|Native Instruments Traktor Kontrol S2 Mk1||discontinued||2 deck all-in-one||yes||NHL|
|Native Instruments Traktor Kontrol S2 Mk2||$400||2 deck all-in-one||yes||HID|
|Native Instruments Traktor Kontrol D2||$500||remixing pads, faders, and touch strip||no||?|
|Pioneer DDJ-SR||$600||2 deck all-in-one||yes||MIDI|
|Reloop Terminal Mix 4||$600||4 deck all-in-one||yes||MIDI|
|Livid OhmRGB||$640||2 decks + 8×8 multicolor button grid + many encoders||no||MIDI|
|Livid CNTRL:R||$700||2 decks + 4×4 and 2×16 multicolor button grids + many encoders||no||MIDI|
|Native Instruments Traktor Kontrol S4 Mk1||discontinued||4 deck all-in-one||yes||NHL|
|Native Instruments Traktor Kontrol S4 Mk2||$700||4 deck all-in-one||yes||HID|
|Numark NV||$700||4 deck all-in-one||yes||MIDI|
|Reloop Terminal Mix 8||$700||4 deck all-in-one||yes||MIDI|
|Native Instruments Traktor Kontrol Z2||$800||2 decks + effects + standalone digital mixer||yes||HID|
|Native Instruments Traktor Kontrol S8||$1200||4 deck all-in-one + remixing + standalone digital mixer||yes||NHL|
|Pioneer DDJ-SX2||$1000||4 deck all-in-one||yes||MIDI|
|Numark NS7II||$1300||4 deck all-in-one with motorized wheels||yes||MIDI|
|Numark NS7III||$1500||4 deck all-in-one with motorized wheels||yes||MIDI|
|Rane MP25||$1500||4 deck analog mixer||yes||MIDI|
|Rane MP26||$1750||4 deck analog mixer||yes||MIDI|
|Rane Sixty-Two||$2000||2 deck analog mixer + loops, cues, and effects||yes||MIDI|
|Pioneer DDJ-SZ||$2000||4 deck all-in-one||yes||MIDI|
|Rane Sixty-Four||$2200||4 deck analog mixer + loops, cues, and effects||yes||MIDI|
|Rane Sixty-Eight||$2600||4 deck analog mixer + loops, cues, and effects||yes||MIDI|
|Rane MP2015||$2900||4 deck analog rotary mixer||yes||MIDI|
|Rane TTM57||discontinued||2 deck analog mixer + loops, cues, and effects||yes||HID|
|Vestax VCI-380||discontinued||2 deck all-in-one||yes||MIDI|
Native Instruments' newer DJ controllers are USB HID class compliant devices (source). The Windows and Mac OS X drivers can translate the HID signals to MIDI, but this is not available on GNU/Linux. So, if you make a mapping for these controllers, please make an HID mapping so it is compatible with every OS that Mixxx runs on.
Native Instruments' older DJ controllers use a proprietary protocol called NHL that Mixxx does not support. The Windows and Mac OS X drivers can switch these controllers to a MIDI mode by pressing certain buttons (see the Native Instruments website for the button combination for each controller), which could be mapped to Mixxx. Unfortunately, because this is done by the driver and not the controller firmware, these controllers cannot be used as MIDI controllers on GNU/Linux. However, the snd-usb-caiaq driver in Linux supports the audio interfaces in at least some of these devices. It also registers the signals from some of the controllers as generic Linux input events. To get these devices to work with Mixxx on GNU/Linux, either the driver would need to be modified to translate these signals to HID or MIDI, Mixxx would need to be able to read Linux input events, or a program would need to translate the Linux input events to HID or MIDI.
Most DJ gear comes with black or grey knobs and fader caps. Several companies sell brightly colored knobs and fader caps that can replace the standard black or grey that your gear came with. In addition to looking cool, brighter caps can be easier to see in dark environments. Some caps have a hard plastic slippery surface whereas others have a rubberized surface that fingers don't slide off as much. Some DJs prefer plastic; some prefer rubberized surfaces. Be sure to check that the caps you order fit your controller before purchasing them.
Custom caps available:
Here is a video comparing different brands.
Mixxx can use any sound card that your OS has a driver to use. The tables below list some USB soundcards that could be used for DJing. Some of them would not be very good choices for most DJs; read What to look for in a soundcard and consider your needs when looking through the tables. All listed sound cards work with Mac OS X and Windows unless otherwise noted. Most work with Linux, but not all; check the table for details.
The ALSA sound card matrix lists Linux-compatible soundcards. Linux users may also benefit from these soundcard resources for Linux DJs, courtesy of Mark Hills, the author of xwax. If you have a Firewire/IEEE 1394 interface, the only way to use it with Linux is with JACK (not ALSA). The FFADO project has a list of Firewire interfaces compatible with Linux.
Splitter cables are the cheapest way to get two separate sound outputs from your computer. These plug into the onboard sound card built into computer motherboards and split the stereo signal into two separate mono signals. However, onboard sound cards are not good quality.
Do not buy splitter cables or adapters that are not marketed as DJ splitters. Devices marketed as “headphone splitter” cables or adapters duplicate one stereo signal in two jacks. These cannot be used for headphone cueing. Also, generic stereo-to-mono splitter cables or adapters typically have two mono jack outputs. Plugging headphones or stereo speakers into a generic stereo-to-mono splitter will only play sound on one side of the headphones or speakers.
Mono output is a new feature in Mixxx 1.12. Older versions of Mixxx will not work with splitter cables.
Available DJ splitter cables:
As explained at the top of the page, it is recommended to use a sound card with at least 4 mono output channels with Mixxx. Playing audio at 16 bit sample depths and 44.1 kHz sample rate is fine for DJing; almost all music is published in this format (which was the standard set by audio CDs). If you are interested in recording music, consider getting a higher quality sound card that supports 24 bit sample depths and a 96 kHz sample rate (there is no advantage of 192 kHz sample rates). Bit depth determines the possible dynamic range of the signal and half the sample rate is the maximum frequency that can be represented by the signal (humans generally can't hear above 20 kHz, so 44.1 kHz/2 = 22.05 kHz is fine for playback).
If you are unfamiliar with professional audio equipment, read Digital DJ Tips' Essential Guide to Audio Cables for DJs to understand the different kinds of connectors on sound cards. It is better to use a sound card with balanced outputs, especially if you will run long cables directly into an amplifier or active speakers without going through an analog mixer. Balanced signals reject interference and are less susceptible to ground loop hum issues (which can be a problem when plugging unbalanced gear into separate power sources). However, most venues have DJs plug into analog DJ mixers, which typically only have RCA inputs (RCA cables cannot be balanced). Most home/computer speakers have RCA and/or 1/8” TRS stereo inputs. Most live sound mixers have balanced 1/4“ TRS mono inputs. If you need to interconnect balanced and unbalanced gear, see this guide from Presonus and this guide from Rane.
Turntables, microphones, and electric guitars all output quiet signals that need to be amplified to line level by a preamplifier before a sound card (or most audio equipment) can effectively work with them. If a device has a switch between phono, instrument, or mic level and line level, it has a preamplifier in it. If you want to plug a microphone into your sound card, it will need a microphone preamplifier. If you want to plug an electric guitar or bass into your sound card, it will need an instrument preamplifier.
If you want to use vinyl control, it is best to have phono preamplifiers (one for each deck) somewhere between your turntable and sound card to boost the turntable's phono level signal to line level. Mixxx can amplify phono level signals in software, but it is better to do it in hardware. The phono preamp can be in the turntable, in the sound card, or a stand alone device. Many higher-end all-in-one controllers include sound cards with phono preamps.
Sound cards often have multiple connectors for a single channel, resulting in more connectors than channels. So, not every connector can send or receive an independent signal. Some sound cards made for DJing have 4 output channels with 4 mono output connectors and 1 stereo headphone connector. This does not mean that the sound card can send out 6 different signals at the same time; rather, the signal on 2 of the mono outputs and the stereo headphone output would be the same.
When considering specifications, higher dynamic range, higher signal-to-noise ratio (SNR), higher maximum output level, lower THD+N (more negative dB value or smaller percentage), and lower crosstalk (more negative dB value) are better.
Laptops do not always have the most reliable power output to their USB ports, so the ability to use a separate power adapter for your sound card can be an advantage. Also, sound cards with power adapters can generally output stronger signals. A lack of an external power supply can especially be an issue for sound cards built into controllers because one USB port has to power both the lights on the controller and the sound card. However, sound cards that are USB bus powered can be used with a laptop and battery powered speakers for a completely battery powered setup.
Mixxx can use multiple sound cards at the same time. However, before Mixxx 1.12, this would result in crackling in the headphones. Every sound card has its own clock crystal and no two are precisely the same frequency even if the devices are the same model and from the same production run. Mixxx before 1.12 synchronized its audio generation to the clock crystal of whichever device is selected as the master output (deck 1 output if no master is selected) so that the crowd won't hear the artifacts. As a result, secondary devices either fall behind or run ahead of the primary one, causing them to play silence until Mixxx generates the next audio buffer exactly in time for the primary device. Playing bits of audio interspersed with bits of silence sounds like crackling. Mixxx 1.12 can compensate for this, but it is still better to use one sound card with 4 outputs.
Many extremely cheap ($1-$10) 2 channel output USB sound cards that look like USB flash drives are available, but these tend to be very poor quality, even worse than onboard sound cards.
See this video for a comparison of cheap DJ sound cards. Note that it does not include the Numark DJ iO 1 or 2 though.
|Device||Price (USD) 23)||Channels out||Output connectors||Channels in||Input connectors||Preamps||Bit depths||Sample rates (kHz)||power adapter||Linux|
|Behringer U-Control UCA202 & UCA222 24)||$30||2||2 RCA, 1 1/8” headphone, 1 SPDIF Toslink||2||2 RCA||none||16||32, 44.1, 48||no||yes|
|Behringer U-Phono UFO202||$30||2||2 RCA, 1 1/8“ headphone||2||2 RCA||1 phono||16||32, 44.1, 48||no||yes|
|Numark Stereo iO||$50||2||2 RCA||2||4 RCA||1 phono||16||44.1||no||likely 25)|
|Numark DJ iO||$50||4||4 RCA, 1 1/4” headphone||1||1 1/4“ mic||1 mic||24||44.1, 88.2||optional||no|
|Griffin DJ Connect 26)||$90||4||2 RCA, 1 1/8” headphone||0||none||none||16||48||no||likely 27)|
|Numark DJ iO 2||$100||4||2 RCA, 1 1/4“ headphone||1||1 1/4” mic||1 mic||24||44.1||no||likely 28)|
|Native Instruments Traktor Audio 2 DJ (Mk2)||$100||4||2 1/8“ stereo||0||none||none||24||44.1, 48, 88.2, 96||optional, sold separately for $25||likely 29)|
|Native Instruments Traktor Audio 2 (Mk1)||discontinued (was $120)||4||2 1/4” stereo||0||none||none||24||44.1, 48, 88.2, 96||no||yes|
|Electrix Ebox-44||discontinued (was $100)||4||4 RCA, 1 1/4“ headphone||5||4 RCA, 1 1/4” mic||2 phono (one switch for both), 1 mic||16||44.1, 48||no||yes|
|Mixvibes U-Mix44||discontinued (was $100)||4||4 RCA, 1 1/8“ headphone||5||4 RCA, 1 1/4” mic||2 phono, 1 mic||16||48||no||yes|
|Reloop Play||$130||4||4 RCA, 1 1/4“ headphone||0||none||none||24||96||no||yes|
|Focusrite Scarlett 2i4||$200||4||2 1/4” balanced, 4 RCA, 1 1/4“ headphone, 1 5-pin MIDI||2||2 XLR+1/4” balanced combo, 1 5-pin MIDI||2 mic, 2 instrument||24||44.1, 48, 88.2, 96||no||yes|
|Native Instruments Komplete Audio 6||$230||6 (4 analog, 2 digital)||4 1/4“ balanced, 1 1/4” headphone, 1 5-pin MIDI, 1 optical SPDIF||6 (4 analog, 2 digital)||2 XLR+1/4“ balanced, 2 1/4” balanced, 1 5-pin MIDI, 1 optical SPDIF||2 mic, 2 instrument||16, 24||44.1, 48, 96||no||yes|
|Focusrite Scarlett 6i6||$250||6 (4 analog, 2 digital)||4 1/4“ balanced, 2 1/4” headphone, 1 5-pin MIDI, 1 optical SPDIF||6 (4 analog, 2 digital)||2 XLR+1/4“ balanced combo, 2 1/4” balanced, 1 5-pin MIDI, 1 optical SPDIF||2 mic, 2 instrument||24||44.1, 48, 88.2, 96||yes||yes|
|Native Instruments Traktor Scratch A6||$300||6||6 RCA, 1 1/4“ headphone||6||6 RCA||2 phono||16, 24||44.1, 48, 88.2, 96||optional||yes|
|Denon DS1||$300||4||4 RCA||4||4 RCA||2 phono||24||44.1, 48, 96||no||?|
|Audient iD14||$300||4||2 1/4” balanced, 1 1/4“ headphone||2||2 1/4” balanced/XLR combo, 1 1/4“ TS instrument||2 mic, 1 instrument||24||44.1, 48, 88.2, 96||optional||?|
|Focusrite Scarlett 18i8||$350||8 (6 analog, 2 digital)||2 1/4” balanced, 2 1/4“ headphone, 1 5-pin MIDI, 1 optical SPDIF||18 (8 analog, 10 digital)||4 XLR+1/4” balanced combo, 4 1/4“ blanced, 1 optical SPDIF, 1 optical ADAT||4 mic, 2 instrument||24||44.1, 48, 88.2, 96||yes||yes|
|Native Instruments Traktor Scratch A10||$500||10||10 RCA, 1 1/4” headphone||10||10 RCA, 1 1/4“ mic||4 phono, 1 mic||16, 24||44.1, 48, 88.2, 96||optional||?|
|Rane SL2||$500||4||4 RCA||4||4 RCA||2 phono||24||44.1, 48||optional||no|
|Rane SL3||$700||6||6 RCA||6||6 RCA||3 phono||24||44.1, 48||optional||no|
|Rane SL4||$900||8||8 RCA||8||8 RCA||4 phono||24||48, 96||optional||no|
|ESI MAYA 44 USB||discontinued||4||4 RCA, 1 1/8” headphone, 1 optical SPDIF||4||4 RCA||none||16||44.1 48||no||no|
|Device||Price (USD) 30)||Channels out||Output connectors||Channels in||Input connectors||Preamps||Bit depths||Sample rates (kHz)||Linux|
|Behringer BCD3000||$100||4||2 RCA, 1 1/4“ headphone||5||4 RCA, 1 XLR mic||2 phono, 1 mic||24||44.1||yes|
|Hercules DJ Control Instinct||$125||4||2 RCA, 2 1/8” stereo||0||none||none||16||44.1||yes|
|Hercules DJ Console RMX 2||$200||4||2 XLR, 2 RCA, 2 1/4“ headphone||5||4 RCA, 1 XLR||2 phono, 1 mic||24||44.1, 48, 88.2, 96||yes|
|American Audio VMS2||$250||4||2 XLR, 4 RCA, 1 1/4” headphone||4||4 RCA, 1 XLR mic, 1 1/4“ mic||2 phono, 1 mic||16||44.1||yes|
|Pioneer DDJ-SB||$250||4||2 1/4” balanced, 2 RCA, 1 1/4“ headphone, 1 1/8” headphone||1||1 1/4“ mic||1 mic||24||44.1||yes|
|Allen & Heath Xone K2||$300||4||2 RCA, 1 1/8” headphone||0||none||none||16||48||yes|
|Reloop Terminal Mix 4||$400||4||4 RCA, 2 1/4“ balanced, 1 1/4” headphone, 1 1/8“ headphone||3||2 RCA, 1/4” mic||1 phono, 1 mic||?||?||?|
|Numark N4||$500||4||4 RCA, 2 XLR, 1 1/4“ headphone, 1 1/8” headphone||4||4 RCA||2 phono||16||44.1||?|
|Denon MC6000Mk2||$700||4||2 1/4“ balanced, 2 XLR, 2 RCA, 1 1/4” headphone||9||8 RCA, 1 1/4“ mic, 1 XLR mic||4 phono, 1 mic||24||44.1||?|
|Behringer BCD2000||discontinued||4||2 RCA, 1 1/4” headphone||5||4 RCA, 1 XLR||2 phono, 1 mic||24||44.1||yes|
|Hercules DJ Console RMX||discontinued||4||4 1/4“ balanced, 4 RCA, 2 1/4” headphone||5||4 RCA, 1 1/4“ mic||2 phono, 1 mic||16, 24||44.1, 96||yes|
|Mixvibes U-Mix Control 2 Pro||discontinued||4||4 RCA, 1 1/4” headphone, 1 1/8“ headphone||5||4 RCA, 1 1/4” mic||2 phono, 1 mic||?||?||?|
|Numark Mixtrack Pro II||discontinued||4||2 RCA, 1 1/4“ headphone, 1 1/8” headphone||1||1/4“ mic||1 mic||16||44.1, 48||yes|
|Numark Omni Control||discontinued||4||4 RCA, 1 1/4” headphone||1||1/14“ mic||1 mic||24||44.1, 88.2||no|
|Reloop Terminal Mix 2||discontinued||4||2 1/4” balanced, 4 RCA, 1 1/4“ headphone, 1 1/8” headphone||3||2 RCA, 1 1/4“ mic||1 phono, 1 mic||?||?||?|
|Tascam US-428||discontinued||2||2 RCA, 1 optical SPDIF, 2 5-pin MIDI||4||2 1/4” balanced, 2 1/4“ unbalanced, 2 XLR, 1 optical SPDIF, 2 5-pin MIDI||?||24||48||yes|
|Device||Price (USD) 31)||Channels out||Output connectors||Channels in||Input connectors||Preamps||Bit depths||Sample rates (kHz)||Linux|
|Native Instruments Traktor Kontrol Z1||$200||4||2 RCA, 1 1/8” headphone||0||none||none||24||96||yes|
|American Audio MXR 10 32)||$200||4||4 RCA, 2 XLR, 1 1/4“ headphone||5||4 RCA, 1 1/4” mic||2 phono, 1 mic||24||48||?|
|Gemini Slate||$200||4||2 RCA, 1 1/8“ headphone||1||1/4” mic||1 mic||?||?||? 33)|
|Gemini Slate 4||$250||4||2 RCA, 1 1/8“ headphone||1||1/4” mic||1 mic||?||?||? 34)|
|Akai AMX||$250||4||2 RCA, 1 1/8“ headphone||4||4 RCA||2 phono||24||96||likely 35)|
|Numark Mixtrack Pro 3||$250||4||2 RCA, 1 1/4” headphone, 1 1/8“ headphone||1||1/4” mic||1 mic||24||44.1||yes|
|American Audio MXR 14 36)||$300||4||4 RCA, 2 XLR, 1 1/4“ headphone||6||4 RCA, 2 XLR mic||2 phono, 2 mic||24||48||?|
|Hercules DJ Control Jogvision||$300||4||4 RCA, 1 1/4” headphone, 1 1/8“ headphone||3||1/4” mic, 1/8“ stereo||1 mic||16, 24||44.1, 48, 96||?|
|Korg KAOSS DJ||$300||4||2 RCA, 1 1/4” headphone||3||2 RCA, 1 1/4“ mic||1 mic||24||44.1, 48||?|
|Pioneer DDJ WeGO 3||$300||4||2 RCA, 1 1/4” headphone, 1 1/8“ headphone||1||1 1/4” mic||1 mic||24||48||?|
|Reloop Beatmix 2||$300||4||2 RCA, 1 1/4“ headphone||1||1/4” mic||1 mic||?||?||?|
|Reloop Beatmix 4||$400||4||2 RCA, 1 1/4“ headphone||1||1/4” mic||1 mic||16||48||?|
|Native Instruments Traktor Kontrol S2 Mk1||discontinued||?||?||?||?||?||?||?||?|
|Native Instruments Traktor Kontrol S2 Mk2||$400||4||2 RCA, 2 1/4“ balanced, 1 1/4” headphone||1||1 1/4“ mic||1 mic||16, 24||44.1, 48, 88.2, 96||?|
|Pioneer DDJ-SR||$600||4||2 1/4” balanced, 2 XLR, 2 RCA, 1 1/4“ headphone, 1 1/8” headphone||9||8 RCA, 1 XLR mic, 1 1/4“ mic||2 phono, 1 mic||24||44.1||?|
|Native Instruments Traktor Kontrol S4 Mk1||discontinued||?||?||?||?||?||?||?||yes|
|Native Instruments Traktor Kontrol S4 Mk2||$700||4||2 RCA, 2 1/4” balanced, 1 5-pin MIDI||5||4 RCA, 1/4“ mic, 1 5-pin MIDI||2 phono, 1 mic||16, 24||44.1, 48, 88.2, 96||?|
|Reloop Terminal Mix 8||$700||4||2 1/4” balanced, 4 RCA, 1 1/4“ headphone, 1 1/8” headphone||3||2 RCA, 1 1/4“ mic||1 phono, 1 mic||?||?||?|
|Native Instruments Traktor Kontrol Z2 37)||$800||4||2 1/4” balanced, 2 XLR, 2 RCA, 1 1/4“ headphone, 1 1/8” headphone||7||6 RCA, 1 1/4“ mic||2 phono, 1 mic||24||48||likely 38)|
|Pioneer DDJ-SX2||$1000||4||2 1/4” balanced, 2 XLR, 2 RCA, 1 1/4“ headphone, 1 1/8” headphone||8||8 RCA, 1 XLR+1/4“ combo, 1 1/4” mic||2 phono, 2 mic||24||44.1||?|
|Native Instruments Traktor Kontrol S8 39)||$31200||4||2 RCA, 2 1/4“ balanced, 2 XLR, 1 1/4” headphone, 1 5-pin MIDI||5||4 RCA, 1 1/4“ mic, 1 XLR mic, 1 5-pin MIDI||2 phono, 1 mic||24||48||?|
|Numark NS7II||$1300||4||2 1/4” balanced, 2 XLR, 4 RCA, 1 1/4“ headphone, 1 1/8” headphone||10||8 RCA, 2 XLR+1/4“ combo||4 phono, 2 mic||24||44.1||?|
|Numark NV||$700||4||4 RCA, 2 XLR, 1 1/4” headphone||3||2 RCA, 1 1/4“ mic||1 mic||?||?||?|
|Rane MP25 40)||$1500||10||N/A||12||N/A||4 phono||24||48||likely 41)|
|Rane MP26 42)||$1750||10||N/A||12||N/A||4 phono||24||48||likely 43)|
|Pioneer DDJ-SZ||$2000||4||2 1/4” balanced, 2 XLR, 2 RCA, 1 1/4“ headphone, 1 1/8” headphone||8||8 RCA, 1 XLR+1/4“ combo, 1 1/4” mic||2 phono, 2 mic||24||44.1||?|
|Rane Sixty-Two 44)||$2000||8||N/A||12||N/A||2 phono||24||48||?|
|Rane Sixty-Four 45)||$2200||10||N/A||12||N/A||4 phono||24||48||?|
|Rane Sixty-Eight 46)||$2600||12||N/A||10||N/A||4 phono||24||48||?|
|Rane MP2015 47)||$2900||10||N/A||14||N/A||4 phono||24||44.1, 48, 96||likely 48)|
|Rane TTM57 49)||discontinued||10||N/A||10||N/A||2 phono||24||44.1, 48, 96||likely 50)|