JBL Quantum 300

Key Features

  • Over the Ear
  • Wired Headphones
  • Microphone
  • 20 Hz (Min) – 20 kHz (Max) Frequency Response
  • 50 mm Driver
  • 32-ohm Impedance
  • 100 dBmW Sensitivity
  • Inline Remote


JBL Quantum 300

Get a more immersive gaming experience with the JBL Quantum 300. The 50mm drivers provide a deep bass, which makes that exploding grenade sound even more realistic. You can adjust the volume of the headset using the buttons on the ear cup. Fold out the microphone to communicate with your friends online.

If you want to take a sip of your drink while the game is loading, you can easily point the microphone upwards. Thanks to the closed design of the ear cups, you’ll be less bothered by ambient noise like a vacuum or a truck driving past. On top of that, you can connect the headset to all your devices using the 3.5mm connector or the included USB-A connector piece.

From the tiniest footsteps to the loudest explosions. JBL QuantumSOUND Signature makes every scene epic and every gamer more competitive.


Step up your game with superior audio. JBL Quantum 300 wired headset creates a new level of immersion thanks to JBL QuantumSOUND Signature and accurate audio positioning. JBL QuantumSURROUND generates a realistic soundscape that drops you in the middle of the action, gives you an edge, and maximizes your performance on your PC. Designed for durability, the lightweight headband and memory-foam ear cushions keep you comfortable.


The JBL Quantum 300 headset is compatible via 3.5mm jack with PC, PlayStation, Xbox, Nintendo Switch, Mobile, Mac and VR.
Select your preferred surround sound settings and personalize your JBL Quantum 300 gaming headset from a user-friendly dashboard, creating separate profiles. You can also adjust the equalizer or choose from 6 presets.

Full Specifications


Brand JBL
Model Quantum 300
Type Over the Ear
Connectivity Wired

Design and Body

Dimensions 320 x 250 x 140 mm
Weight 245 g
Cord Length 1.2 m
Foldable Yes
Microphone Yes
Water Resistant No
Monaural No

Sound Features

Deep Bass No
Impedance 32 ohm
Sensitivity 100 dBmW
Frequency Response 20 Hz (Min) – 20 KHz (Max)
Driver Unit 50 mm
Driver Type Dynamic


Sales Package 1 Headphone, USB Audio Adapter, Windshield Foam for Boom Microphone, Quick Start Guide, Warranty Card and Safety Sheet
Inline Remote Yes
Power Features
Power Input 30 mW


Warranty 1 year
Warranty Type Manufacturer
Covered in Warranty Manufacturing Defects
Not Covered in Warranty Physical Damage