Covers the JBL Speaker Extra Bass Mode here. But unfortunately, turning ON and OFF this mode does not work on the later model speakers like the one we discuss here. Hopefully though, JBL will add this feature back on in a later version of the firmware.
But if this did work, it might function as follows, just as it has on other JBL Flip speakers. Now when ON, this mode makes the passive bass radiators vibrate more. Furthermore, extra bass mode adds a “thumpy” aspect to the content playing. And which makes this speaker sound much bigger than it really is.
JBL Speaker Extra Bass Mode: How to Toggle
First off, by default, this BT speaker has this extra bass mode ON. So you already get more treble and lots of extra bass to the audio output. You just can’t turn it OFF.

How to Toggle JBL Speaker Extra Bass Mode OFF and ON
Some day, we hope that you’ll be able to turn extra bass mode OFF. This would work by pressing the Volume Down (-) and Bluetooth buttons. Then you would hold them in for about ten seconds, or until the oval ring lights up. Find these buttons on the top of the speaker.

Also, to turn extra bass mode back on, again, press the Volume Down and Bluetooth buttons. Then hold them in until the oval button ring lights up again. Then release them. Finally, when the ring goes off, extra bass mode is in effect once more.
Qualifiers
- Testing extra bass mode, we find that it works neither on firmware versions 0.5.2.0 nor 0.6.4.0.
Other JBL Speaker Posts
- JBL Speaker Connected But No Sound
- How to Turn ON Low Frequency on Speaker
- Speaker Battery
- Does the JBL Speaker Come With a Charger
- Speaker Not Charging or Turning ON
- Speaker Infinity Button Meaning
- How to Connect Speaker Together
- Speaker Not Connecting to iPhone
- Speaker Pairing Instructions
- Speaker LFM Mode
