![JBL 4739 Low-Frequency Section for JBL 3373, 4722, 4722N, 4732 and 4732T ScreenArray Cinema Loudspeakers JBL 4739 Low-Frequency Section for JBL 3373, 4722, 4722N, 4732 and 4732T ScreenArray Cinema Loudspeakers](https://www.jpleisure.co.uk/jbl_4739_1.jpg)
JBL 4739 Low-Frequency Section for JBL 3373, 4722, 4722N, 4732 and 4732T ScreenArray Cinema Loudspeakers
![Hey guys just wanted to ask if I'm not owning the Fake jbl because when I want to turn on low frequency mode it just does weird sounds and it's putting volume Hey guys just wanted to ask if I'm not owning the Fake jbl because when I want to turn on low frequency mode it just does weird sounds and it's putting volume](https://i.redd.it/dw8e1tznfl171.jpg)
Hey guys just wanted to ask if I'm not owning the Fake jbl because when I want to turn on low frequency mode it just does weird sounds and it's putting volume
![Amazon.com: JBL Professional PRX815XLFW Portable Self-Powered Extended Low- Frequency Subwoofer System with WiFi, 15-Inch, Previous Generation : Electronics Amazon.com: JBL Professional PRX815XLFW Portable Self-Powered Extended Low- Frequency Subwoofer System with WiFi, 15-Inch, Previous Generation : Electronics](https://m.media-amazon.com/images/I/81OyvM2cwlL._AC_UF894,1000_QL80_.jpg)
Amazon.com: JBL Professional PRX815XLFW Portable Self-Powered Extended Low- Frequency Subwoofer System with WiFi, 15-Inch, Previous Generation : Electronics
![I've activated Low Frequency/Debug mode and am using an app to play very low freq audio to enjoy the driver jello effect. At around 50% volume, am I risking any damage? Or I've activated Low Frequency/Debug mode and am using an app to play very low freq audio to enjoy the driver jello effect. At around 50% volume, am I risking any damage? Or](https://external-preview.redd.it/2QGMAtOxGMMUFv3vMMtnqr0jK_niRZpi92YvVLT_rjo.jpg?width=640&crop=smart&auto=webp&s=0d03796f0f9ec94a360af3534f89f4dc742237d9)