You can change how loud the bass is on the JBL Xtreme 3, by turning on its bass mode. When active, this extra bass mode makes the passive radiators vibrate a great deal more. Plus, it adds a deep rumble trait to the playing program as well as a bit of extra treble too. This enhanced thump travels pretty far from the speaker too.
JBL Xtreme 3 Bass Mode Explained
By default, the JBL Xtreme 3 has its bass mode ON after resetting. This adds some treble and increased bass to the audio output as compared to when this mode is OFF. Also, the midrange levels sound like they drop a bit when bass mode is running.

You can turn extra bass mode ON by pressing and holding in the Volume Down (-) and Bluetooth buttons for about ten seconds, until the Power and Bluetooth buttons, and the oval that surrounds them, all light up white, as shown in the next picture. We point at this with the green arrow. E.g. Find all these buttons on the top of the speaker, as shown in the picture above.

To put bass mode back to what it was before, then again, press and hold the Volume Down and Bluetooth buttons in until the oval, along with the Power and Bluetooth buttons light up white. Then release the buttons. Finally, when the the oval goes out, the low frequency mode has resumed once again.
Warning
The drivers really thump when bass mode is ON. So use care in how loudly you play this speaker, to avoid damage to the speaker drivers inside. In fact, if the bass is ever crackling, tapping, or otherwise distorting, turn it down !
Related Posts to JBL Xtreme 3 Bass Mode Explained
Other Posts About the JBL Xtreme 3 Powerbank Speaker
- How to Charge JBL Xtreme 3 BT Speaker
- JBL Xtreme 3 Charge Time to Fully Recharge
- How to Use the JBL Xtreme 3 Party Boost Button
- Bluetooth Pairing Tips for the JBL Xtreme 3
- Factory Resetting the JBL Xtreme 3
References for JBL Xtreme 3 Bass Mode
Revision History
- 2022-08-15: First published.