JBL Quantum 400

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

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)

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.