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Lesson 2

Connecting and Configuring Your DDJ-FLX4 in Rekordbox

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Introduction

In our last session, we took a comprehensive tour of your DDJ-FLX4, identifying its key sections and the purpose of its main controls. You now know what the jog wheels, faders, and knobs do. Today, we'll bridge the gap between the physical hardware and your digital music world. This lesson is all about the crucial connection and configuration process. By the end of this session, you'll have your controller successfully communicating with your computer and the Rekordbox software, with audio correctly routed to your speakers and headphones. This is the foundational technical setup that makes everything else possible.

Step 1: Installing and Launching Rekordbox

Before plugging anything in, the first step is to ensure your computer is ready with the DJ software. Your DDJ-FLX4 is designed to work seamlessly with Rekordbox, and it even "unlocks" the core features of the software for free, a concept known as "hardware unlock."

This first video gives a quick, clear overview of getting the software running.

Just Bought an FLX 4? Do This First. (Full Setup Tutorial)

This clip from Jared Daniel Jensen's channel explains the initial software setup before you even plug in the controller.

Watch the section from the beginning. The key takeaways are that you should download and install Rekordbox, and that the free plan is perfectly sufficient for our purposes. You'll need to create a free Rekordbox account if you don't have one.

Once you have Rekordbox installed and you've logged into your account, you're ready to connect the hardware.

Step 2: Making the Physical Connections

Now it's time to bring your controller to life. The connection process involves providing power and data to the controller, and then directing the audio out to your speakers and headphones.

Let's first look at the ports on your DDJ-FLX4.

This image shows the connection ports on your controller. Pay attention to the USB-C ports (1), the RCA Master Out (3), and the headphone jack (7).

Here’s the breakdown of what you need to connect:

  1. Computer to Controller (Power and Data): The DDJ-FLX4 uses a single USB-C cable for both power and sending control information to Rekordbox. This is the primary connection you need to make.
  2. Controller to Speakers (Master Output): The main sound that your audience would hear comes from the MASTER output ports (labeled '3' in the image). These are RCA ports (the red and white sockets). You will need an RCA-to-whatever-input-your-speakers-have cable (e.g., RCA-to-RCA or RCA-to-3.5mm Aux).
  3. Headphones to Controller (Cue Output): Your headphones plug into the 3.5mm jack on the front of the controller (labeled '7'). This is how you'll listen to tracks privately before you mix them in.

This next video demonstrates the simple connection to the computer.

How to set up Pioneer DDJ-FLX4 with Rekordbox (Tutorial)

This tutorial from Gustav - DJ Tutorials & Mixes shows the physical connection in action.

Watch the short clip from this point. Notice how the controller powers on as soon as it's plugged into the laptop. Go ahead and connect your DDJ-FLX4 to your computer now with the USB-C cable.

At this stage, you should have your controller powered on, your speakers connected to the Master Out ports, and your headphones plugged into the front.

Step 3: Configuring Audio in Rekordbox

With everything physically connected, we need to tell Rekordbox how to handle the audio. The software needs to know that the DDJ-FLX4 is its primary audio device, responsible for both processing the sound and sending it to the right outputs.

Rekordbox is usually very good at detecting this automatically, but it's essential that you know where these settings are in case you need to troubleshoot. This next video walks you through the audio preferences panel.

How to set up Pioneer DDJ-FLX4 with Rekordbox (Tutorial)

Let's return to the tutorial from Gustav. This part is the most critical part of today's lesson, as it shows the software side of the setup.

Watch this section from the beginning. Follow along on your own computer: Open Rekordbox. Go to File > Preferences (on Windows) or Rekordbox > Preferences (on Mac). The shortcut is the small gear icon in the top right of the screen. In the Audio tab, make sure the Audio dropdown menu at the very top is set to DDJ-FLX4. Scroll down to the Output channels section. This is where you tell Rekordbox where to send the sound. It should be automatically set as follows: Master Output: DDJ-FLX4 : MASTER Headphones Output: DDJ-FLX4 : PHONES The video demonstrates a test where the sound comes from the laptop speakers. This happens if you don't have the DDJ-FLX4 selected as your audio device. Our goal is to have the controller handle all audio, so ensuring it's selected is key.

This configuration creates the standard DJ workflow: the main mix plays out of the speakers connected to your controller's master output, and your private cueing happens in the headphones connected to the controller's headphone jack.

Step 4: The Final Sound Check

Let's confirm everything is working as expected. We will load a track and check both the master and headphone outputs. Rekordbox includes some sample tracks you can use for this.

  1. Find a Track: In the Rekordbox interface, look at the tree view on the left. Find "Sampler" and then click the "SAMPLER" sub-item. You should see a list of short audio samples.
  2. Load the Track: Click and drag one of the samples (e.g., "Scratch") onto Deck 1 on the screen. The track name should appear on the virtual deck.
  3. Check Master Output:
    • Make sure the Channel 1 fader (the vertical slider for deck 1 in the mixer section) is pushed up.
    • Make sure the Master Volume knob is turned up to about the 10 o'clock position.
    • Press the Play/Pause button on Deck 1 of your controller.
    • You should hear the track playing through the speakers connected to your Master Out. The volume meters for Channel 1 on the controller and on-screen should be lighting up.
  4. Check Headphone Output:
    • Press the CUE button for Channel 1 on the mixer section (it's the button just above the channel fader). It should light up.
    • Turn the Headphones CUE/MASTER knob all the way to the left (to CUE).
    • Turn up the Headphones Level knob.
    • With the track still playing, you should now hear the same audio in your headphones. If you turn the CUE/MASTER knob to the right, you'll hear the master output in your headphones instead.

If you can hear the track through your main speakers and isolate it in your headphones using the cue button, your setup is complete and correct.

Conclusion

Congratulations, your DJ setup is now fully operational. You've completed the essential process of linking your hardware with your software. You learned how to physically connect the DDJ-FLX4, your speakers, and headphones, and how to configure the audio settings within Rekordbox to route sound correctly. This establishes the complete signal flow: from the commands on your controller, through the processing power of Rekordbox, and out to the speakers and headphones.

Now that your system is ready, the next step is to start building your music library. In our next lesson, we will explore the characteristics of a "DJ-friendly" track and learn how to find and download free, high-quality music that is perfect for practicing your new skills.