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

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.

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
What can you do with JBL QuantumENGINE software?
You can adjust equalizer, RGB LED effects, change microphone settings and update the headset's firmware.
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.

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.

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.

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”.
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”.

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.

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
JBL QuantumENGINE Features

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

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  

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

QuantumENGINE

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