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

------------------------------------------------------------------------

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

------------------------------------------------------------------------

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

------------------------------------------------------------------------

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

------------------------------------------------------------------------

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

------------------------------------------------------------------------

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

------------------------------------------------------------------------

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 DUO
Software Update Release Notes
------------------------------------------------------------------------
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

------------------------------------------------------------------------
------------------------------------------------------------------------

QUANTUM DUO
Software Update Release Notes
------------------------------------------------------------------------
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
------------------------------------------------------------------------
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

------------------------------------------------------------------------
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

------------------------------------------------------------------------
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

------------------------------------------------------------------------
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.

------------------------------------------------------------------------
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

------------------------------------------------------------------------

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

------------------------------------------------------------------------

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

 

QUANTUM STREAM TALK

Software Update Release Notes

------------------------------------------------------------------------

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

QUANTUM STREAM WIRELESS

Software Update Release Notes

------------------------------------------------------------------------

Version:  3.1.0 (Lightning) 

Release Date: November 22nd, 2024

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

 What’s New

1. Stability and performance improvement

------------------------------------------------------------------------

Version:  2.9.0 (Lightning) ; 3.3.0 (USB-C)

Release Date: February 26, 2024

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

 

What’s New

1. Stability and performance improvement

It is not possible to have Ambient Aware or TalkThru activated at the same time as Sidetone when the microphone is turned on during a call. This is the case no matter if you are using Bluetooth or the 2.4 GHz mode.
You can use Ambient Aware during a call if Sidetone is turned off. You are able to do this in both Bluetooth or the 2.4 GHz mode.
All three audio modes are activated if the microphone on your device is turned off no matter if you are using Bluetooth or the 2.4 GHz mode.
 

QUANTUM TWS

Software Update Release Notes

------------------------------------------------------------------------

Version:  4.2.0

Release Date: January 10th, 2025

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

 

What’s New

1. Stability and performance improvement

------------------------------------------------------------------------

Version:  3.8.2

Release Date: Nov 20, 2023

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

 

What’s New

1. Updated BT name from "JBL QUANTUM TWS" to "JBL Quantum TWS"

To restore your JBL Rallybar/S/XL to factory settings, Press + and ⏵ buttons simultaneously for 10 seconds.

To skip the tracks forward, press and hold the volume up (+) button for 1-2 seconds and you will advanced to the next song. To start the current song you are listening to over, press and hold the volume down (-) button for 1-2 seconds. Please note: You can only advance to the next song be skipping forward, you cannot skip tracks backward. You can only restart the current song over by pressing the volume down (-) button.

To connect to a different Bluetooth device, first switch the headphones off. Now press and hold the center button on the headphone remote control for about 3-5 seconds. You should see the light blinking red/blue to indicate pairing mode, and the voice prompt should state “looking for device”. You should see "Reflect Mini 2" appear on the source's BT list. Choose that option, and wait for the voice prompt to state “connected”

Button 1 - Answer phone or 1 click: Play/Pause, 2 clicks: Skip to next, 3 clicks: Skip to previous.

The JBL Connect app will be renamed as JBL Portable on the App Store and Google Play store in January 2021, it will still be possible to find the app in each store by searching for either JBL Connect or JBL Portable.

To reset the headphones, power on the headphones and plug in the USB cable into a USB charger or USB port. Paired mobile devices should disconnect and the led should be constant white. When unplugging the USB cable, the headphones will power off. When manually powering on the headphones, and the last connected mobile phone is not in range, the headphones will revert to Bluetooth Pairing mode ( blue led will blink ) after 5 seconds.

In the United States a business must charge sales tax in states where they have a physical presence (a warehouse, store, administrative office, sales office, etc.). When buying direct from Harman or any of our subsidiaries, we are required by law to charge sales tax in the following states where we have a physical presence. All other states are not subject to sales tax.

California 

Connecticut 

Florida 

Georgia 

Kentucky 

Michigan 

Missouri 

New Jersey 

New York 

North Carolina 

Pennsylvania 

South Carolina 

South Dakota 

Tennessee 

Washington 

West Virginia 

Wisconsin

If the screen appears dark, try repositioning the Horizon 2 for the light sensor to work to the fullest. In some positions, the Horizon 2 cannot effectively detect the ambient light level in the room.