JBL Xtreme 3 - Low Frequency Mode On! Bass Test! How to activate LFM! | JBL Xtreme 3 - Low Frequency Mode On! Bass Test! How to activate LFM! https://youtu.be/ClZGJ8MpE2I | By
![3 Important Secrets about JBL Xtreme 2 -Low Frequency Mode, Resetting Xtreme 2, Learning Firmware V. - YouTube 3 Important Secrets about JBL Xtreme 2 -Low Frequency Mode, Resetting Xtreme 2, Learning Firmware V. - YouTube](https://i.ytimg.com/vi/jCNpavfu_Hc/maxresdefault.jpg)
3 Important Secrets about JBL Xtreme 2 -Low Frequency Mode, Resetting Xtreme 2, Learning Firmware V. - YouTube
![Amazon.com: JBL Bar 5.1 - Soundbar with Built-in Virtual Surround, 4K and 10" Wireless Subwoofer (JBL2GBAR51IMBLKAM) Amazon.com: JBL Bar 5.1 - Soundbar with Built-in Virtual Surround, 4K and 10" Wireless Subwoofer (JBL2GBAR51IMBLKAM)](https://m.media-amazon.com/images/I/61togoq+KnL.jpg)