JBL Quantum 400 - Black - USB over-ear PC gaming headset with game-chat dial - Hero JBL Quantum 400 - Black - USB over-ear PC gaming headset with game-chat dial - Front JBL Quantum 400 - Black - USB over-ear PC gaming headset with game-chat dial - Detailshot 1
JBL Quantum 400 - Black - USB over-ear PC gaming headset with game-chat dial - Hero

JBL Quantum 400

Gain an audio edge. JBL Quantum 400 headset keeps you one step ahead with surround sound that engages you in the game and lets you anticipate every move. Designed for precision and immersion, JBL QuantumSOUND Signature helps you level up your performance for a real advantage in combat. JBL Quantum 400 also features a voice focus boom mic for clear multiplayer interactions, a game-chat balance dial, is certified for DISCORD, and compatible with TeamSpeak and more. A lightweight headband with memory foam ear cushions lets you game in comfort for hours on end. Up your game with JBL Quantum 400 headset and dominate your opponents.

Product Specifications

General Specifications

Driver size (mm) 50
Maximum input power (mW) 30

Audio Specifications

Driver sensitivity at 1kHz/1mW (dB) 98
Dynamic frequency response range (Hz) 20 Hz - 20 kHz
Impedance (ohms) 32

Dimension Specifications

Weight (g) 274
Weight (oz) 9.7
Headphone Cable Length (m) 3
Headphone Cable Length (ft) 9.8
Ear Cup External Height (in) 3.9
Ear Cup External Width (in) 3.5
Ear Cup Internal Height (in) 2.3
Ear Cup Internal Width (in) 1.9
Ear Cup Depth (in) 1.1
Ear Cup External Height (cm) 9.9
Ear Cup External Width (cm) 8.8
Ear Cup Internal Height (cm) 5.8
Ear Cup Internal Width (cm) 4.9
Ear Cup Depth (cm) 2.7
Please consult the documents for in-depth specs

Documents & Downloads

Videos

What’s in the Box

  • 1 x JBL Quantum 400 headset
  • 1 x Type-C to Type-A cable
  • 1 x 3.5mm audio cable
  • 1 x Windshield foam for boom microphone
  • 1 x Quick Start Guide
  • 1 x Warranty card
  • 1 x Safety Sheet
JBL Quantum 400 - What's in the Box

FAQs & How-Tos

  • How to set up your microphone

    Ensure that only one voice chat application is in use while in-game. Be sure you hear a click when the microphone is flipped down. The microphone will only function when it is flipped down fully. If you see a red LED on the microphone, it is muted.
    FLIP DOWN.png


    How to check your PC settings for the correct recording device
    1. Go to Control Panel
    Control panel.png
    2. Select Hardware and Sound
    Step 2.PNG
    3. Click on Sound
    Step 3.PNG
    3 Select  Recording
    Recording tap.jpg

    4. Make sure to select the proper recording device.

    1. Right-click on it Quantum headset.

      Set default communication device.jpg
    2. Now select "Set Default Device" or Select "Default Communication Device"

      Set default communication device 2.jpg

    5. Check the microphone levels by right-click on your Quantum headset. Then click on Properties
    Properties.jpg

    6. Choose Levels.
    Levels 1.jpg

    7. Adjust accordingly.
    Levels 2.jpg  

    Category:

    Troubleshooting
  • Why can't I hear audio from my headphones?

    Make sure the headset volume control is turned up. Rotate the volume wheel on your headset to increase the volume. If you're connected to the PC via USB, check that the default device is selected under Control Panel > Sound > Playback. Select JBL Quantum 400 Game, right-click, and select "Set as Default Device".  Check on the top bar of the JBL QuantumENGINE whether your headset's game-chat balance dial is set correctly. Check the JBL Quantum 400 Game device and make sure it is not muted or turned all the way down.

    Category:

    Troubleshooting
  • How do I request or purchase peripheral parts for my JBL Quantum headset?

    Replacement parts are available from authorized dealers and Service Centers. Please contact our customer service department for more information and contact details.

  • What's in the box?

    Your JBL Quantum 400 includes the headset, a USB Type A to C cable, a 3.5mm cable, QSG l Warranty Card l Warning Card, and a microphone windshield.

    Category:

    Product information
  • Why can't your teammates hear you?

    Make sure the headset volume control is turned up and your microphone is unmuted. Check that only one voice chat application is in use while in-game. If you're connected to the PC, make sure that the communication device is selected under Control Panel > Sound > Recording. Select the JBL product and select "Set as Default Device". Check on the top bar of the JBL QuantumENGINE whether your headset's game-chat balance dial is set correctly.

    Category:

    Troubleshooting
  • Why are my headphones shown as “speakers” on Windows?

    The “Speaker” mode allows the JBL QuantumENGINE to receive more than two channels of audio. It also prevents some applications from adding extra signal processing intended for other headphones, which would negatively impact the performance of the JBL QuantumSURROUND or JBL QuantumSPHERE 360 technology.

    Category:

    Product information
  • How to set up your microphone

    Ensure that only one voice chat application is in use while in-game. Be sure you hear a click when the microphone is flipped down. The microphone will only function when it is flipped down fully. If you see a red LED on the microphone, it is muted.

    Check that the PC is using the correct recording device.

    1. Go to Control Panel

    2. Select  Sound 

    3 Select  Recording

    4. Make sure to select the proper recording device.
    1. Right-click on it Quantum headset.
    2. Now select "Set Default Device" or "Select Default Communication Device"
    5. Check the microphone levels by right-click on your Quantum headset.

    6. Go to Properties

    7. Chose Levels and adjust accordingly

    Category:

    Troubleshooting
  • Which products are supported by the JBL QuantumENGINE software?

    JBL Quantum 300, 350, 400, 600, 610, 800, 810 ONE, TWS and Stream are working with the QuantumENGINE

  • Mic Monitoring (side tone) Support

    Yes. You can configure the volume of the mic monitoring in JBL QuantumENGINE. And the default setting of the mic monitoring is set of “OFF”.

    Category:

    Product information
  • The story behind our Quantum name

    We wanted the name to reflect this futuristic inspiration married with cutting-edge technology. The Quantum name was ultimately chosen as it conjures images of both the technology aspect through the advances in quantum computing but also a very organic feel with reference to quantum physics and the science behind building upon small elements to make massive improvements. 

  • Mic Monitoring Support

    Yes. You can configure the volume of the mic monitoring in JBL QuantumENGINE. The default setting of the mic monitoring is "OFF”.
  • What can you do with JBL QuantumENGINE software?

    You can adjust equalizer, RGB LED effects, change microphone settings and update the headset's firmware.

    Category:

    Product information
  • Game-Chat Balance Support

    For JBL Quantum 100/200/300 models, they do not offer Game-Chat audio dial function.
    To get the Game-Chat dial feature, you need JBL Quantum 400, and up, then you can adjust game-chat balance by rotating the dial-up and down.

    For models that support Game-Chat dial, when you rotate the dial, you will feel a notch that indicates 50% game and 50% chat. Or you can see the status on the top bar of the JBL QuantumENGINE.

    Category:

    Product information
  • Purchase parts for Quantum headphones

    Replacement parts are available from authorized dealers and Service Centers. Please contact our JBL customer service department for more information and contact details.

    Category:

    Product information
  • How to clean your Quantum headphone

    You can clean your headphones by wiping it gently with a damp cloth. Take extra care not to let water get into the speaker chamber, as it will damage the speaker drivers. If you need replacement ear pads, please reach out to your local JBL Customer Support to inquire about replacement parts.

    Category:

    Recommendations
  • JBL QuantumENGINE Features

    You can adjust Equalizer, Spatial Sound, RGB LED effects, change microphone settings and update the headset's firmware

    Category:

    Product information
  • Physical damage on headphones

    If your JBL Quantum headphone is under warranty, you can visit our Support Site at

    https://support.jbl.com/us/en/

    Category:

    Product information
  • Supported Platforms

    The JBL Quantum 400 headset is compatible via 3.5mm jack with PC, PlayStation, Xbox, Nintendo Switch, Mobile, Mac and VR.
    You can use the USB connection with PC, PS4, Nintendo Switch, and Mac.

    Category:

    Product information

QuantumENGINE

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