Harman JBL Quantum400, Quick Start Manual

HARMAN International Industries, Incorporated
8500 Balboa Boulevard, Northridge, CA 91329 USA
www.jbl.com

© 2020 HARMAN International Industries, Incorporated. All rights reserved. JBL is a trademark of HARMAN 
International Industries, Incorporated, registered in the United States and/or other countries. Features, specifications 
and appearance are subject to change without notice. 

What’s in the box:

JBL Quantum 400 headset
Type-C to Type-A cable
3.5mm audio cable
Windshield foam for boom microphone
QSG / Warranty card / Safety sheet

Technical specifications:

Driver size: 50mm Dynamic drivers

Frequency response: 20Hz – 20kHz

Microphone frequency response:  
100Hz – 10kHz

Max input power: 30mW

Sensitivity: 98dB SPL @1kHz/1mW

Microphone sensitivity: -40dBV @ 1kHz/Pa

Impedance: 32 ohm

Cable length: 3.5mm audio cable (1.2m) + 
Type-C to Type-A cable (3m)

Microphone pickup pattern: Directional

Microphone size: 4mm x 1.5mm

Weight: 274g

Features and Benefits

Live the game with JBL QuantumSURROUND and DTS

Enjoy the game’s most immersive sound experience with personalized surround sound powered by 
the included JBL QuantumENGINE PC software. JBL QuantumSURROUND puts you at the center 
of the most engaging experience, allowing you to up your game and triumph over the competition. 
Also equipped with DTS headphone:X v2.0. 

JBL QuantumSOUND Signature gives you a true audio edge

From the tiniest footsteps to the loudest explosion, QuantumSOUND Signature makes every scene 
epic and every gamer more competitive. Our signature audio delivers the most realistic soundscape 
for a competitive advantage in any battle.

Play even longer in memory foam comfort

The lightweight headband and memory foam ear cushions were designed for even the longest 
gaming sessions.

Voice focus directional flip-up boom microphone 

JBL Quantum 400 headset lets you rally the troops and opponents with clarity. The flip-up,  
voice focus directional boom mic comes with auto on/off and mute features.

Game-chat dial for seamless communication

JBL Quantum 400 headset features a Game-chat Balance Dial certified by DISCORD.  
Also compatible with TeamSpeak and other communication platforms.

Made for your favorite platforms

Created for PC gaming, JBL Quantum 400 headset is also compatible with Xbox

™

, PlayStation

™

, 

Nintendo Switch

™

, Mobile, Mac, and VR.

User-friendly JBL QuantumENGINE software suite

JBL’s unique QuantumENGINE PC software powers the immersive surround sound. Select your 
preferred surround sound settings and personalize your JBL Quantum 400 gaming headset from 
a user-friendly dashboard, creating separate profiles and RGB effects, and modifying microphone 
settings. You can also adjust the equalizer or choose from 6 presets.

USB over-ear gaming headset with game-chat balance dial 

QUANTUM 

400