Unfortunately, the usual way adjust the bass response of the JBL Charge 5, by turning on and off its low frequency mode does not seem to work. Plus, we know of no other way to activate this mode. Hopefully, JBL will re add this feature in a later version of the firmware. But if this did work, it might work as follows, as it has on other speakers in the JBL Charge line. Now when ON, this mode makes the passive bass radiators vibrate noticeably more. Furthermore, low frequency mode adds a decidedly “thumpy” aspect to the content playing, which makes this speaker sound much bigger than it really is.
How to Toggle JBL Charge 5 Low Frequency Mode
First off, by default, this BT speaker has this extra bass mode turned on. Moreover, if this toggling actually worked, when this mode is on, it would also add more treble and lots of extra bass to the audio output as well.

How to Toggle JBL Charge 5 Low Frequency Mode Off and On
Some day, we hope that you’ll be able to turn this extra bass mode off by pressing and holding in the Volume Down (-) and Bluetooth buttons for about ten seconds. Plus, you would keep holding them until the oval ring around the buttons lights up, as shown in the next picture. E.g. Find these buttons on the top of the speaker, as shown in the picture above.

Also, to turn extra bass mode back on, again, you would press and hold the Volume Down and Bluetooth buttons in until the oval button ring lights up again. Then release the buttons when you see that. Finally, when the ring goes off, low frequency mode activates once more.
Qualifiers
- Speaker firmware version for this test: 0.5.2.0.
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References
Revision History
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- 2021-08-02: First published.