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

Audio Specifications

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

Dimension Specifications

Weight (g) 274
Weight (oz) 9.7
Charging Cable Length (m) 3
Charging 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
Audio Cable Length (ft) 3.9
Audio Cable Length (m) 1.2
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

  • PlayStation Information

    The compatibility for JBL Quantum models on PlayStation 5 is the same as it is for PlayStation 4 models.
     All JBL Quantum headset models work through 3.5mm audio jack (aux) connected to the PlayStation controller. USB models will also work on PlayStation. In addition, the wireless models works wirelessly when connected to the 2.4GHz USB dongle.


    Please note: JBL QuantumENGINE is only available on PC. Custom lighting can be set up on PC, and will carry over when connected with USB cable or 2.4GHz USB dongle. 
  • No sound in my Quantum headphones

    Ensure that the correct device is selected as the default device under Control Panel>Sound>Playback. Make sure the on headset volume control is turned up. Rotate the volume wheel on your headset to increase the volume. Check that the correct playback device is selected under Control Panel > Sound > Playback. Select the correct device, right-click, and select "Set as Default Device". Check the computer volume levels and make sure it is not muted or turned all the way down.
  • 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.

  • Xbox Information

     All JBL Quantum headset models work only through 3.5mm audio jack (aux) connected to the Xbox controller. You cannot connect to any Xbox Series console via Bluetooth. 

    Please note: JBL QuantumENGINE is only available on PC.
     

QuantumENGINE

Download

Gaming Support

Need help with your JBL Quantum? Check out the Quantum support page!

Go to Quantum Support!

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