Picture of the left front of the JBL Flip 6 portable speaker.

How to Turn ON LFM on JBL Speaker

Unfortunately, How to Turn ON LFM on JBL Speaker (low frequency mode) does not appear to work. Hopefully, 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, low frequency mode adds a “thumpy” aspect to the content playing. And which makes this speaker sound much bigger than it really is.

How to Turn ON LFM on JBL Speaker: How to Switch ON and OFF

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.

Picture of the -Pairing- and -Volume Down- buttons on the JBL Speaker.
The -Pairing- and -Volume Down- buttons on the JBL Speaker.

How to Turn ON LFM on JBL Speaker

Some day, we hope that you’ll be able to turn low frequency 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.

Picture of all lights on the button panel glowing.
All lights on the button panel glowing.

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, low frequency mode is in effect once more.

Qualifiers

  1. Testing low frequency mode, we find that it works neither on firmware versions 0.5.2.0 nor 0.6.4.0.

Other JBL Speaker Posts

  1. JBL Speaker Pairing
  2. JBL Speaker Tricks
  3. Hard Reset Hack
  4. Can JBL Speaker Play While Charging
  5. Typical Features
  6. How to Power OFF
  7. Does JBL Speaker Turn OFF Automatically
  8. When JBL Speaker Does Not Turn ON
  9. How Long to Charge

References

  1. Official JBL Speaker Support Page
  2. Where to Buy the JBL Speaker