JBL Quantum Duo

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Connectivity

Audio through 3.5mm Jack

PC Splitter Extension

USB Audio Adapter

USB Type C to A

2.4GHz Wireless

Bluetooth 5.2

Bluetooth 5.2 (5.2)

Bluetooth 5.2

Sound

JBL QuantumSOUND Signature

Stereo (3.5mm Audio Cable)

Windows Sonic Spatial

JBL QuantumSURROUND Sound

DTS Headphone X: v2.0

JBL QuantumSPHERE 360™

Frequency Response 20Hz - 40kHz

Frequency Response 20Hz - 20kHz

Frequency Response 60Hz - 20kHz

Features

JBL QuantumENGINE

ANC (Active Noise Cancelling)

RGB (USB C to A)

RGB (USB Dongle)

Discord certified

Game-Chat Balance Dial

Voice-Focus Boom Mic

Learn More

JBL QuantumSOUND signature

From the tiniest footsteps to the loudest explosion, JBL QuantumSOUND Signature makes every scene epic and every gamer more competitive. The high excursion 2.5” drivers and tweeters deliver a sound curve tuned by JBL audiologists and specifically designed for gaming. Our signature surround sound technology, together with Dolby digital, creates the most realistic soundstage. Be fully devoted in the game and win the game as it allows you to hear every enemies coming by.

Experience every detail

You'll never miss a bullet, a crunch in the gravel or a moan of the undead with the incredible sound clarity and powerful, intense bass. Delivered by exposed drivers and rear facing bassports.

Customizable lights

Supercharge your gaming rig with cool lighting effects that take you deeper into the action. JBL Quantum Duo PC gaming speakers come with different colour presets and lighting patterns. Set the mood easily with the lighting control button.

Features

See the beat

By syncing lights to the beat, audio sync lets you see your favorite tracks as well as hear them. Visualize your music and choose your vibe with the Wave or Flow lighting patterns. Or try the Solid setting in any color you like.

Bluetooth for wireless music streaming

Enjoy wireless audio streaming with built-in Bluetooth.

Plug-and-play with intuitive controls

No additional setup required. Plug-and-play JBL Quantum Duo PC speakers enhance any gaming experience. Intuitive controls mean you can change volume and lighting effortlessly, keeping you focused and in the moment.

Compatible with any gaming system

Connect JBL Quantum Duo PC gaming speakers effortlessly to any system via Audio-in and USB. Fully compatible with PC, Mac, Windows and gaming consoles.

Specs & Downloads

Item# JBLQUANTUMDUOBLKAM

Description

Sound is survival

Level up with powerful JBL Quantum Duo PC gaming speakers. Go deeper into the action with pitch-perfect sound and unique lighting effects. Easily pinpoint incoming fire, hear enemies creeping up on you and feel the roar of explosive action. With JBL proprietary gaming surround sound and Dolby Digital in a cool, distinctive design. Never miss a step, shot or jump with exposed drivers and tweeters for incredible sound clarity. With the different colour presets and lighting patterns to personalize your setup, gaming has never felt more real.

General Specifications

Output power (W): 20

Audio Specifications

Dynamic frequency response range (Hz): 60 Hz - 20K Hz

Dimensions

Dimensions (cm): 8.9 x 21 x 17.6
Dimensions (in): 3.5 x 8.3 x 6.9
Weight (kgs): 2.8
Weight (lbs): 6.2

Control and Connection Specifications

Bluetooth profiles: A2DP v1.3, AVRCP v1.5
Bluetooth frequency: 2402 MHz - 2480 MHz
Bluetooth transmitted modulation: GFSK, π/4 DQPSK, 8DPSK
Bluetooth transmitter power: ≤ 12.5 dBm (EIRP)
Bluetooth version: 4.2

What's in The Box?

1 x JBL Quantum Duo
1 x 1.5m audio in cable
1 x 1.5m USB cable
1 x 1.5m power cable
1 x Quick-Start Guide
1 x Warranty card

Documents & Downloads

Declaration of Conformity

Quick Start Guide (Multilingual)

USB driver for JBL Quantum Duo Window 7 user

USB driver for JBL Quantum Duo Window 8.1 user

USB driver for JBL Quantum Duo Window 10 user

Firmware Update for Quantum Duo Version 46

Spec Sheet (English)

Reviews and Q&A

Customer Reviews

Rated 5 out of 5 by Pete0 from Great Quality Sound Been using the JBL Quantum Duo for a couple weeks and thought to share my opinion. Sound is amazing. Crystal clear no matter if the volume is really low or on full blast!!! Used them with mini jack to the telly and PS4 for gaming, Bluetooth from the laptop for music and gaming and quality on the sound is bang on. Lights are a nice feature too (had them side ways to look at them). The only thing I don't like is the on off button and bluetooth are flat and not so easy to find if it's dark. Still though easy to get used to. Minijack input in the front could be handy but personally haven't used it as I like the sound in the room and don't have the need to keep quiet.

Date published: 2020-08-22

Rated 1 out of 5 by Robbybobby from Turns itself off I paid quite a bit for these speakers and from day one i've had the same problem as others where they switch off randomly. Searching the web a lot of people are having this issue and there doesn't appear to be any acknowledgement from the makers.

Date published: 2021-04-18

Rated 5 out of 5 by chrissy85 from amazing sound quality sounds amazing the lights changing colours with the music is a great feature i can close myself away in my little dark room office, stick on a tune and let let the lights jam away with the music its like your own mini rave or disco they connect easily and was very simple to get set up i have no complaints about these what so ever and when used for gaming wow just wow the sound quality off these speakers is beyond what i thought they could do and have proved to be a fab addition to our house after testing these speakers i have decided to buy them as they are just too good to send back

Date published: 2020-09-10

Rated 5 out of 5 by Bexbex999 from Amazing sound These speakers fit so well with my pc setup.They look the part and the sound quality is superb. Even when they are at full blast (which of course you do when you buy new speakers!) there isn't any distortion. Easy to set up and they are several options for the speakers colours. Exactly the quality you would expect from a top brand like JBL.

Date published: 2020-09-01

Rated 3 out of 5 by Itsmeemmer from Great colours I had trouble contecting these to my Nintendo switch and xbox. There was just a very strange humming noise. I could connect to my phone very easily and the bass was fantastic. As i had these for gaming i was very disappointed. The volume that they could go up too was very good and i loved that i could change the colours to have it a consistent colour, or a range of colours to the beat, is a really clever idea. The bluetooth was easy to connect too and very simple to set up for my phone.

Date published: 2020-08-23

JBL Quantum Duo Reviews - page 2

Product Q&A

Hello will lights OFF be an option on these speakers

Asked by: bobo123

Lights can be off

Answered by: Hutz6263

Date published: 2021-06-21

Brilliant speakers! At the time of this writing, these speakers are sold out. Would like to know more or less when they would be back in stock?

Asked by: Xentory27

It's sad they are avilable in Australia and other countries. But not in USA.. I just checked. I dont care to pay more shipping but they dont sell them..

Answered by: An9elo22

Date published: 2022-05-24

Does this work with the PS5 or Xbox Series X? I can to see in the docs how it would connect 

Asked by: Malteser

The Quantum Duo can be used with the PS5 via USB and with the X Box Series X via AUX cable. Suitable accessories are included with the product

Answered by: DirkB

Date published: 2021-06-28

Would they work with a smart tv using Bluetooth?

Asked by: Raymond73

It may work with TVs, however, it's best to use a wired (3.5mmjack) connection for better video and audio sync.

Answered by: Jem at Customer Support

Date published: 2021-06-06

Can you use these with other JBL speakers I own using JBL connect(+)?

Asked by: sheck

Thank you for your question, this is not possible.

Answered by: Noah at Customer Support

Date published: 2021-06-06

Can you set these speakers to the colour purple only? 

Asked by: MichelleFordine

Thank you for your question. You can pre-set the colour and stay on it, one of the colours is indeed dark purple or light mauve. Should you wish to receive further support, you may contact the Harman Customer Support team by telephone, email or chat in order to receive direct assistance. Please see https://uk.harmanaudio.com/support-contact.html#ns for further details. 

Answered by: Stuart A

Date published: 2021-06-06

Can you plug these just into a tv please?

Asked by: Danneth

Thank you for your question. It will not be possible to plug these into the TV, we would recommend a Soundbar instead. Should you wish to receive further support, you may contact the Harman Customer Support team by telephone, email or chat in order to receive direct assistance. Please see https://uk.harmanaudio.com/support-contact.html#ns for further details. Thank you.

Answered by: AJ1612

Date published: 2021-06-06

will I be able to link multiple pairs together to create a surround sound experience

Asked by: Al3x_Grainger

Thank you for your question, unfortunately this is not possible. But a single pair has already virtual Surround for gaming for example.

Answered by: Noah at Customer Support

Date published: 2021-06-06

JBL Quantum Duo Questions - page 2

Support

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JBL Quantum Duo

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