JBL Quantum 300
|Driver sensitivity at 1kHz/1mW (dB)||100 dB SPL @1 kHz / 1mW|
|Dynamic frequency response range (Hz)||20 Hz - 20 kHz|
|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|
Documents & Downloads
Quick Start Guide
What’s in the Box
- 1 x JBL Quantum 300 headset
- 1 x USB audio adapter
- 1 x Windshield foam for boom microphone
- 1 x Quick Start Guide
- 1 x Warranty card
- 1 x Safety Sheet
FAQs & How-Tos
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. 5. Check the microphone levels by right-click on your Quantum headset.
6. Go to Properties
7. Choose 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.
Right-click on it Quantum headset.
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)
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.
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.
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.
Software Update Release Notes
Release Date: 1/21/21
Welcome feature has been implemented.
Surround Modes feature has been implemented.
ANC/TT toggle has been implemented.
The sidetone has been turned off by default for all models to avoid confusion.
QuantumSURROUND/QuantumSPHERE quality & performance have been improved.
Quantum 300 Mic Gain has been improved.
Quantum 800 FW update reliability has been improved.
Minor Bugs Fixed
The JBL Quantum 300 headset is compatible with PC, PlayStation, Xbox, Nintendo Switch, Mobile, Mac and VR.
You can also use the included USB dongle on PC, PlayStation and Mac.
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