How To

The intensity of the light show is dependent on the amount of audio signal being sent into the unit.

If you are experiencing a light show that doesn't move around very much, it is likely that you are not using a feature on your phone called Bluetooth Absolute Volume*. This means that the volume of your phone/tablet/device is controlled independently from the volume of the speaker.

So, if you have the Pulse 4 set to maximum volume or close to it, but the volume on your device is set at a low level, the light show will show little to no effect. All you have to do is reverse it. Turn up the volume on the device to the maximum and set the Pulse 4 to the desired volume. This will send the correct level to the speaker and the light show will show plenty of effect. This also benefits the sonic quality as well. Therefore, we recommend always having the volume on your device turned up to a high level and then adjusting the volume level on the speaker itself. This way you'll be able to enjoy the light show while also getting good audio quality. Or, if possible, setup your device for Bluetooth Absolute Volume*.

*BLUETOOTH ABSOLUTE VOLUME: Most phones/tablets/devices now use Bluetooth Absolute Volume (a.k.a. volume sync) by default. This is a feature that synchronizes the volumes of the device and the speaker, and allows the speaker volume to be controlled by changing the volume on either the device or the speaker. The volume being sent from the device is fixed at full volume.

A new firmware version has been released for the Pulse 4 (Version 0.5.1.0), below is a list of the improvements:

1. Supports Bluetooth 5.1 profile.
2. Improves the stability of stereo setup using the JBL Portable* app.
3. Improves compatibility with Mac computers.
4. Enhances light show synchronization with music.

The firmware update is installed as an OTA update:

1. Download and install the JBL Portable* app from the Google Play/App Store.
2. Connect your Pulse 4 to your phone/tablet through Bluetooth.
3. Open the JBL Portable app and wait for the Pulse 4 to appear.
4. On the Pulse 4 screen, select settings (gear cog symbol).
5. Proceed with installing the firmware update.

*JBL Portable is the new name for the JBL Connect app, the name will change in January 2021.

Press and hold the Light Show & Bluetooth buttons together for > 2 seconds.

QUANTUM 350

Software Update Release Notes

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Version:  1.4.4

Release Date: Nov 22, 2023

Release Media: OTA (over the air) Update via JBL Quantum Engine

 

What’s New

1. Add EQ store feature that retains EQ changes made in Quantum Engine

QUANTUM 360X & QUANTUM 360P

Software Update Release Notes

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Version:  3.6.5

Release Date: June 20, 2024

Release Media: OTA (over the air) Update via JBL Quantum Engine

 

What’s New

1. Add compatibility with JBL Headphone app for both iOS & Android devices

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Version:  2.3.0

Release Date: November 22, 2023

Release Media: OTA (over the air) Update via JBL Quantum Engine

 

What’s New

1. Add EQ store feature that retains EQ changes made in Quantum Engine

 

 

QUANTUM 810

Software Update Release Notes

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Version:  2.8.0

Release Date: January 26th, 2025

Release Media: OTA (over the air) Update via JBL Quantum Engine

 

What’s New

1. Add Zoom Certified

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Version:  2.3.1

Release Date: Nov 6, 2023

Release Media: OTA (over the air) Update via JBL Quantum Engine

 

What’s New

1. Improved firmware stability

QUANTUM 910

Software Update Release Notes

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Version:  3.3.0

Release Date: April 9th, 2025

Release Media: OTA (over the air) Update via JBL Quantum Engine

 

What’s New

1. Stability and performance improvement

QUANTUM 910X

Software Update Release Notes

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Version:  2.3.0

Release Date: April 9th, 2025

Release Media: OTA (over the air) Update via JBL Quantum Engine

 

What’s New

1. Stability and performance improvement

QUANTUM DUO
Software Update Release Notes
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Version:  V46
Release Date:  August 31, 2022
Release Media:  USB
Filename:  JBL Quantum Duo SW release V46.zip

What's New

1. We have improved the volume synchronization between the Quantum DUO and Windows OS, which give the user a better sound experience

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QUANTUM DUO
Software Update Release Notes
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Version:  V44
Release Date:  December 15, 2021
Release Media:  USB
Filename:  JBL Quantum Duo SW release V44.zip

What's New

1. Allow user to disable the auto standby feature via long pressing lighting pattern and right color selection button for >10 seconds
2. General Software Improvements

QUANTUM ENGINE
Software Update Release Notes
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Software Version:  V1.2.8 (MAC only)
Release Date:  July 8, 2024
Release Media:  Apple Store

What’s New

1. Improve FW upgrade stability for Quantum 810, Quantum 910, Quantum 910P & Quantum 910X

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Software Version:  V1.19.0.2025
Release Date:  June 20, 2024
Release Media:  Website & Quantum ENGINE

What’s New

1. Extend support for Quantum 50C & Quantum 360 Wireless
2. Add max volume indicator feature for Quantum Stream Wireless
3. UI improvements for better user experience

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Software Version:  V1.18.0.1985
Release Date:  January 5, 2024
Release Media:  Website & Quantum ENGINE

What’s New

1. UI improvements for better UX
2. Add support for Quantum Stream Studio & Quantum Stream Wireless

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Software Version:  V1.11.0.1511
Release Date:  September 19, 2022
Release Media:  Website & Quantum ENGINE

What’s New

1. Improved firmware stability upgrading process flow for the QUANTUM 910.

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Software Version:  V1.11.0.1510
Release Date:  August 24, 2022
Release Media:  Website & Quantum ENGINE

What’s New

1. Added support for the new QUANTUM 910 Wireless Headphones
2. Over 30 improvements addressing user interface, usability, and stability of the app for a better user experience.

QUANTUM STREAM

Software Update Release Notes

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Version:  1.3.3

Release Date: June 21, 2024

Release Media: OTA (over the air) Update via JBL QuantumENGINE

 

What’s New

1. Fixed RGB-lighting setting being saved correctly
2. Fixed volume increasing sporadically
3. Changed manufacturer name to "Harman International Inc" on MacOS

 

QUANTUM STREAM STUDIO

Software Update Release Notes

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Version:  1.4.9

Release Date: January 13th, 2025

Release Media: OTA (over the air) Update via JBL QuantumENGINE

 

What’s New

1. Zoom USB Certified
2. Stability and performance improvement