JBL Quantum Duo
JBL Quantum Duo JBL QuantumSOUND signature - Image

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.

JBL Quantum Duo Experience every detail - Image

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.

JBL Quantum Duo Customizable lights - Image

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.


JBL Quantum Duo See the beat - Image

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.

JBL Quantum Duo Bluetooth for wireless music streaming - Image

Bluetooth for wireless music streaming

Enjoy wireless audio streaming with built-in Bluetooth.

JBL Quantum Duo Plug-and-play with intuitive controls - Image

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.

JBL Quantum Duo Compatible with any gaming system - Image

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



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)

Audio Specifications

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


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

Control and Connection Specifications

Bluetooth profiles
A2DP v1.3, AVRCP v1.5
Bluetooth frequency
2402 MHz - 2480 MHz
Bluetooth transmitted modulation
Bluetooth transmitter power
≤ 12.5 dBm (EIRP)
Bluetooth version

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
What's in The Box?

Documents & Downloads

Reviews and Q&A

Customer Reviews

Rated 5 out of 5 by 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 2 out of 5 by from Turns off during use Bought these a week ago, and they werw great. Great looking, awesome sound. BUT, they just turn off while i am using them (on pc, had no problems with bluetooth). Also, when turning them back on, it takes a while before the sound returns, which makes it quite a frustrating experience for gaming. It's a shame, because I really liked these speakers and would have had no problems recommending them. Searching the internet, it seems like I am not the only one having this issue.
Date published: 2021-03-04
Rated 1 out of 5 by 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 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 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
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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

Why does the quantum Duo not update to v44 when following all procedures properly? <running windows 11>. Great speakers otherwise...

Asked by: BC17777
Thank you for bringing this to our attention. We would like to work with you directly to troubleshoot the issues you've been experiencing with our JBL Quantum One Gaming Headset. Please reach out to our Customer Support in Canada as they could best assist you. Phone: 800 567-3275 Email: info@eriksonconsumer.com
Answered by: Customer Support
Date published: 2022-08-04

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
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