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
Quick Start Guide & 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
- Passive Frequency Response
- 20 Hz – 20 kHz
- Audio Cable Length (ft)
- 3.9
- Audio Cable Length (m)
- 1.2
- 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
- Charging Cable Length (m)
- 3
- Charging 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.
FAQs & How-Tos
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To configure the 7.1 Surround feature on your PC, please follow the guide below:
1. In the left corner on your screen right next to the Windows logo, click on the spy-glass to start a search on your PC.
2. Type in Sound --> then select Change System Sounds:
3. Make sure that your the Quantum Headphones is your Default Device for both Speakers ( Game ) and Earphone ( Communication device )
4. To configure the 7.1 Surround feature, right click on the Speakers --> then select Configure Speakers
5. Select 7.1 Surround and click on Next
6. Make sure that all boxes are selected, then click Next
7. Make sure both boxes are selected, and then click Next
8. Click on Finish. Now your Quantum headphones is configured for 7.1 Surround sound. The configuration will remain after rebooting PC or reconnecting headphones.
Enjoy your sound experience #SoundIsSurvival #DareToListen
Was this helpful? Thank you for your feedback! -
To stop hearing your own voice through your headphones, please start the JBL QuantumENGINE software, navigate to the "Microphone" tab, and change the sidetone setting to 0.Was this helpful? Thank you for your feedback!
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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.Was this helpful? Thank you for your feedback!
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JBL Quantum 400 and ONE are compatible with USB C to A cable to enjoy PS4 console with RGB Lighting on, and Quantum 600 and 800 with wireless-enabled by USB dongle also gives lighting moment on PS4 console games.
*NOTE that RGB will not light up when connecting with 3.5mm cable to any device (PC, Console, Mobile, etc.) because the cable doesn't have power enough for the RBG lighting.Was this helpful? Thank you for your feedback! -
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.
How to check your PC settings for the correct recording device
1. Go to Control Panel
2. Select Hardware and Sound
3. Click on Sound
3 Select Recording
4. Make sure to select the proper recording device.-
Right-click on it Quantum headset.
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Now select "Set Default Device" or Select "Default Communication Device"
5. Check the microphone levels by right-click on your Quantum headset. Then click on Properties
6. Choose Levels.
7. Adjust accordingly.
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.
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.
Finally, you can also do a short press on the Smart Ambient button on the headset (if your headset, has this feature)Was this helpful? Thank you for your feedback! -
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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.- Right-click on it Quantum headset.
- Now select "Set Default Device" or "Select Default Communication Device"
6. Go to Properties
7. Chose Levels and adjust accordinglyWas this helpful? Thank you for your feedback! -
Yes, you can adjust the game and chat audio balance by rotating the dial-up and down. When you rotate the dial, you'll feel a notch that indicates the balance is 50% game and 50% chat. The slider on Quantum ONE is different and has no notch but instead a visual indicator.Was this helpful? Thank you for your feedback!
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JBL QUANTUM ENGINE
Software Update Release Notes
------------------------------------------------------------------------Version: 1.19.0.2025
Release Media: Via QuantumENGINE
Release Date: June 20, 2024What’s New
- Add support for Quantum 50C & Quantum 360 Wireless
- Add max volume indicator for Quantum Stream Wireless
- UI improvements for better user experience
------------------------------------------------------------------------
Version: 1.17.0.1950
Release Media: Via QuantumENGINE
Release Date: November 21, 2023What’s New
- Add product support for Quantum Stream Talk
- Add EQ store feature for Quantum 350 & Quantum 360 P/ X
- Firmware update stability improvement for Quantum 810
- UI improvements for better user experience
------------------------------------------------------------------------
Version: 1.6.0.1053
Release Media: Via QuantumENGINE
Release Date: January 21, 2021What’s New
- Add welcome feature
- Add surround mode feature
- ANC/TT toggle has been implemented
- Sidetone setting has been turned off by default
- QuantumSURROUND/QuantumSPHERE quality and performance improvement
- Quantum 300 mic gain improvement
- Quantum 800 firmware update stability improvement
- Bugs fixed
Was this helpful? Thank you for your feedback! -
You can adjust Equalizer, Spatial Sound, RGB LED effects, change microphone settings and update the headset's firmware
Was this helpful? Thank you for your feedback! -
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.Was this helpful? Thank you for your feedback!
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