Elliot Kim
DJ controllers are line-level sources that are usually connected to a computer to operate. Most DJ controllers have built-in sound cards, but some DJs prefer to use external audio interfaces for better sound quality in live performances. When using a DJ controller, it is important to ensure that the volume is turned down before connecting to avoid damage and loud pops. DJs also need to consider levels for headphones, as finding the right balance can help determine which song is playing.
| Characteristics | Values |
|---|---|
| Built-in sound cards | Most DJ controllers have built-in sound cards, but audio interfaces are preferred in live situations for better sound. |
| Sound quality | The audio interfaces in cheap controllers are similar in quality to those built into laptops. |
| Connection | DJ controllers are almost always connected to a computer and use DJ software to operate. |
| Headphones | Working with headphones is essential, especially with headphone cueing. |
| Speakers | When connecting directly to PA speakers, ensure they are powered. If they're passive, connect them to a dedicated power amp first. |
| Latency | DJ software reacts to button presses or slider movements faster with lower latencies. |
| Multi-channel output | Professional DJ programs support true dual-stereo output. |
| USB sound cards | If you're starting with DJ pre-cuing, you'll need a USB sound card with 2 stereo outputs. |
| External sound cards | Using an external sound card can be a smart choice as you won't need to buy a new controller with a built-in sound card when upgrading. |
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What You'll Learn
Most DJ controllers have built-in sound cards
When using an external sound card, DJs need to ensure they have the correct cables for their setup. For example, when connecting directly to PA speakers, DJs will need to use a standard RCA to 1/4-inch cable for powered speakers or connect the speakers to a dedicated power amp if they are passive. DJs should also be cautious when connecting their DJ controller to avoid damaging their equipment. They should ensure the volume is turned down before connecting and never connect the output of a DJ controller to a phono input, as this will amplify an already amplified signal and can cause loud, distorted sounds and potential damage to speakers.
Some DJs opt for an "all-in-one" DJ controller that includes software, hardware, and a sound card for one price. This can be a good option for beginners who want a simple setup, but it may lack certain features or controls found on more advanced controllers. Additionally, when upgrading their setup, DJs who use controllers with built-in sound cards will need to spend more money on a new controller with a sound card, whereas those with external sound cards can reuse their existing sound card.
Overall, while most DJ controllers have built-in sound cards, the preference for external audio interfaces or built-in options depends on factors such as sound quality, ease of setup, and future upgrade paths.
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Audio interfaces are preferred in live situations for better sound
Audio interfaces are preferred in live situations for several reasons, all of which contribute to achieving better sound. Audio interfaces are primarily used for recording audio, but they can also be used for live streaming. They are versatile devices that can be used in a lot of different ways.
Firstly, audio interfaces enhance sound quality. The converters in an interface are of higher quality than those in a built-in sound card. For example, a user on Reddit noted that they noticed a huge improvement in sound quality through the Scarlett 2i4 with XLR cables compared to what they were getting from the RCA outputs of their DDJ 400. Additionally, audio interfaces come with built-in preamps, which help to preserve the quality of the audio. Some preamps, such as Mackie's Onyx Preamps, offer high gain with ultra-low noise, making them perfect for vocals.
Secondly, audio interfaces reduce latency. Latency can be incredibly frustrating, especially when recording or streaming live. For example, if a singer cannot hear themselves clearly in their headphones due to latency, it will be difficult for them to sing on tempo. Audio interfaces provide latency-free monitoring, which is crucial for delivering an exceptional performance.
Thirdly, audio interfaces are straightforward to use. They connect directly to your computer via USB, making them perfect for simple setups and home studios. They are relatively easy to set up and are quite user-friendly.
While mixers are better suited for live performances as they offer more extensive control over multiple audio sources, audio interfaces are still preferred in live situations for their superior sound quality and low latency. Mixers are ideal when you need to manage multiple audio sources simultaneously and make quick adjustments, as they often have onboard effects like reverb, delay, and compression. However, audio interfaces can also be used in live settings, especially when high-quality audio is a priority.
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DJ controllers are line-level sources, so do not connect to phono inputs
DJ controllers are line-level sources, so they should not be connected to phono inputs. Phono level signals require amplification to be usable, and phono inputs will amplify the incoming signal with a preamp built into the mixer. On the other hand, line inputs will not amplify the signal, as they are just line-level inputs.
The LINE signal is the highest level of audio signal before it gets amplified further. It is the standard signal used to transmit analog sound between audio components like CD and DVD players, mixers, and TVs. If you connect a DJ controller to a phono input, it will amplify an already amplified signal, producing a very loud and distorted sound that can damage your speakers.
DJ controllers are typically connected to a computer via a USB cable and use special DJ software to operate. The RCA outputs on the controller are then connected to the RCA inputs on the computer speakers. If the computer speakers do not have RCA inputs, RCA to XLR or RCA to TS cables may be needed.
When setting up a DJ controller, it is important to turn everything down before connecting to avoid loud pops and potential damage. Additionally, it is recommended to have booth outputs, which allow you to hear the same signal coming out of the mains, eliminating any delay issues.
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Headphone cueing requires two stereo outputs
Headphone cueing is a technique used by DJs to preview the next track in their headphones before sending it to the master output for the audience to hear. To do this, two stereo outputs are required. The first stereo output (channels 1-2) is used as the master output, supplying the main mix to the audience. The second stereo output (channels 3-4) is used for cueing and previewing the next track in the headphones.
Most laptops only have a single stereo output, which can be redirected to headphones by plugging them into the headphone jack. However, this does not provide a second stereo output for headphone cueing. A splitter cable can be used to separate the stereo output of a headphone jack into two separate mono outputs, but it is not ideal for DJing as it results in a mono output for the audience.
To achieve true stereo output for both the master and headphone cueing, a sound card with at least four mono outputs (for two stereo pairs) is recommended. External sound cards like the Scarlett series offer higher quality audio than those built into laptops and provide the necessary outputs for DJing. Additionally, DJ software like Mixxx and djay can utilize these external sound cards for headphone cueing, allowing DJs to preview tracks and mix with more options.
Some DJs may opt for dedicated DJ controllers with built-in sound cards, which can provide similar functionality. However, the quality of built-in sound cards can vary, and external sound cards often offer superior audio. For those seeking the best sound quality, investing in a dedicated external sound card is recommended.
In summary, headphone cueing requires two stereo outputs, typically provided by a sound card with at least four mono outputs. This setup enables DJs to preview tracks in their headphones while maintaining a stereo output for the audience, enhancing their performance and allowing for a more immersive listening experience.
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Using an external sound card can be a smart choice
For DJs, one of the main advantages of an external sound card is the ability to connect directly to monitors, microphones, and external instruments. This makes it much easier to set up and manage equipment during performances. Additionally, external sound cards offer independent gain control for each input, which is essential when using multiple microphones.
External sound cards also offer higher-quality digital-to-analogue conversion (DAC) than internal sound cards. This results in a higher-quality audio output with less noise and distortion. The higher-quality DACs found in external sound cards are crucial for accurate mixing and mastering, providing a better overall listening experience.
Furthermore, external sound cards can reduce CPU stress by handling input, output, and AD/DA conversion. This frees up processing power for other tasks, improving the overall performance of the DJ's equipment.
While an external sound card may be more expensive and require additional desktop space, it is a worthwhile investment for DJs seeking improved audio quality, easier equipment connectivity, and reduced technical issues during performances.
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Frequently asked questions
Most DJ controllers have built-in sound cards, but audio interfaces are preferred for live performances as they offer better sound quality.
Having a built-in sound card means you have everything you need in one piece of equipment, making it a convenient and cost-effective option.
The audio quality of built-in sound cards is often not as good as that of external audio interfaces. If you want to upgrade your sound card, you may need to purchase a new controller as well.
Yes, you can use an external audio interface with a DJ controller that has a built-in sound card. You can improve the sound quality by unplugging the speakers from the controller and plugging them into the external interface instead.
