JBL Quantum 400

JBL Quantum 400

USB over-ear PC gaming headset with game-chat dial

Sold from 2020 until now

Getting started with your JBL Quantum 400

Getting started with your JBL Quantum 400

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Documents & Downloads

Product Specifications

Driver size (mm)
50
Driver sensitivity at 1kHz/1mW (dB)
98
Dynamic frequency response range (Hz)
20 Hz - 20 kHz
Impedance (ohms)
32
Ear Cup Depth (cm)
2.7
Ear Cup Depth (in)
1.1
Ear Cup External Height (cm)
9.9
Ear Cup External Height (in)
3.9
Ear Cup External Width (cm)
8.8
Ear Cup External Width (in)
3.5
Ear Cup Internal Height (cm)
5.8
Ear Cup Internal Height (in)
2.3
Ear Cup Internal Width (cm)
4.9
Ear Cup Internal Width (in)
1.9
Headphone Cable Length (m)
3
Headphone Cable Length (ft)
9.8
Weight (g)
274
Weight (oz)
9.7
3.5 mm audio cable Input
Yes
Audio cable
Yes
Built-in Microphone
Yes
Over-ear
Yes
Replaceable Earpads
Yes

Sound is Survival

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.

Enjoy the game’s most immersive sound experience with personalized surround sound powered by the included JBL QuantumENGINE PC software. JBL QuantumSURROUND™ puts you at the center of the most engaging experience, allowing you to up your game and triumph over the competition. Also equipped with DTS headphone:X v2.0.
From the tiniest footsteps to the loudest explosion, JBL QuantumSOUND Signature makes every scene epic and every gamer more competitive. Our signature audio delivers the most realistic soundscape for a competitive advantage in any battle.
The lightweight headband and memory foam ear cushions were designed for even the longest gaming sessions.
JBL Quantum 400 headset lets you rally the troops and opponents with clarity. The flip-up, voice focus directional boom mic comes with auto on/off and mute features.
JBL Quantum 400 headset features a Game-Chat Balance Dial certified by DISCORD. Also compatible with TeamSpeak and other communication platforms.
The JBL Quantum 400 headset is compatible via USB with PC, PS and Mac. 3.5mm audio jack with PC, PlayStation™, Xbox™, Nintendo Switch™, Mobile, Mac and VR. The features powered by JBL QuantumENGINE (JBL QuantumSURROUND, RGB, EQ, Microphone settings etc.) are only available on PC. Check the connectivity guide for compatibility. *Compatible with PlayStation (PS5 and PS4) **Compatible with Xbox (Xbox Series X S and One)
JBL's unique QuantumENGINE PC software powers the immersive surround sound. Select your preferred surround sound settings and personalize your JBL Quantum 400 gaming headset from a user-friendly dashboard, creating separate profiles and RGB effects, and modifying microphone settings. You can also adjust the equalizer or choose from 6 presets.

FAQs & How-Tos

12 results
  • 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  

    Please also make sure the volume control on the headset is turned up. Rotate the volume wheel on your headset to increase the volume.
    Check that your headset's Game-Chat balance dial and ensure that the balance is correct, you might refer to the screenshot below from the QuantumEngine PC software.
    Volume issue Q800 - Part3.png

    If you still cannot hear the game or music audio, or if the volume is still very low, check if the TalkThrough is activated via the QuantumEngine software.
    Volume issue Q800 - Part4.png

    Finally, you can also do a short press on the Smart Ambient button on the headset (if your headset, has this feature)
    Volume issue Q800 - Part5.png

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

  • You can clean it by wiping it gently with a damp cloth. Take extra care not to let water leak into the speaker chamber, as it will damage the speaker drivers.
  • 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”.

  • Yes. You can configure the volume of the mic monitoring in JBL QuantumENGINE. The default setting of the mic monitoring is "OFF”.
  • 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.

  • You can adjust equalizer, RGB LED effects, change microphone settings and update the headset's firmware.
  • JBL Quantum 300, 350, 400, 600, 610, 800, 810 ONE, TWS and Stream are working with the QuantumENGINE
  • 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.

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