JBL Quantum 300

Quick Start Guide & Downloads

FAQs & How-Tos

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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.

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Hearing the difference between Stereo and Surround Sound

Make sure your headset is configured correctly in your Windows settings. The setting should normally be JBL Quantum *Game* to experience QuantumSURROUND.
Please check out this video to assist you further!

https://www.youtube.com/watch?v=LA80RmBrbYg

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How do I clean my JBL Quantum 910 Wireless headset?

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.

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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. Choose Levels and adjust accordingly
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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.

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.
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. 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)
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JBL QUANTUM ENGINE: Software Update Release Notes
JBL QUANTUM ENGINE
Software Update Release Notes
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Version: 1.19.0.2025
Release Media: Via QuantumENGINE
Release Date: June 20, 2024

What’s New
1. Add support for Quantum 50C & Quantum 360 Wireless
2. Add max volume indicator for Quantum Stream Wireless
3. UI improvements for better user experience
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Version: 1.17.0.1950
Release Media: Via QuantumENGINE
Release Date: November 21, 2023

What’s New
1. Add product support for Quantum Stream Talk
2. Add EQ store feature for Quantum 350 & Quantum 360 P/ X
3. Firmware update stability improvement for Quantum 810
4. UI improvements for better user experience
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Version: 1.6.0.1053
Release Media: Via QuantumENGINE
Release Date: January 21, 2021

What’s New
1. Add welcome feature
2. Add surround mode feature
3. ANC/TT toggle has been implemented
4. Sidetone setting has been turned off by default
5. QuantumSURROUND/QuantumSPHERE quality and performance improvement
6. Quantum 300 mic gain improvement
7. Quantum 800 firmware update stability improvement
8. Bugs fixed
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JBL Quantum ONE and Quantum TWS: How do I clean my headset?

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.

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Microphone Sound or Distortion Issues

Make sure both the QuantumENGINE software and the headset's firmware is updated to the most recent version, and that the microphone is plugged all the way in.

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Non-removable microphone feature

We've intentionally designed the flip-up boom mic to stay affixed to the headset. We know from experience that losing or breaking the detachable mic is never fun. Therefore, we designed the mic to fold neatly into the headset - this design also allows the mic to automatically mute when elevated. If you're wanting a detachable mic, please check out the Quantum 100 or the Quantum ONE.

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No sound in my Quantum headphones

Make sure the headset volume control is turned up. Rotate the volume wheel on your headset to increase the volume. If you're using the USB dongle, check that the correct playback device is selected under Control Panel > Sound > Playback. Select the proper playback 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.

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