20 Most Recent JBL S120PII Subwoofer - Page 5 Questions & Answers

You can get it online Amazon.com or alibaba.com or jumia.com

I have the same set and mine broke on me too. Though mine was the left side. It looks like you've opened up the back piece but you can get to the meat of it if you just push on the pole that ear piece sits under push back on it(don't snap) and use a little upward force on the ear piece. Then you can see where the wire has most likely disconnected. If it hasn't on that side you can do the same on the other side, it most likely has disconnected from the PCB as the wires are very very thin(what happened to mine). Just use a soldering iron and heat up the solder on the pad and put the wire back on. You need to make sure that the wire is exposed from the insulation first(I could use my nail to pull it off but the right wires looked different). I attached a picture I took with the PCB exposed. On the left and right you can see the two grey prongs you need to put some pressure on to remove the rocker and get in. On the PCB at the top left you can see the 4 pads the speaker wires connect to. My left speaker was disconnect so you won't see wires on there(red and black). right beside it is the right speaker connection(blue and white wires). those should be attached like in the picture.Use a soldering iron only if you have experience or with someone who does. I don't take responsibility for burns or fires or any other crazy mishaps. Doing this could break your headphones further, by burning the PCB or snapping the rockers on the side or any number of other things that could go wrong. So only do this if you already don't care if they break further.

https://www.youtube.com/watch?v=RBmkxX8hTQ8 https://www.youtube.com/watch?v=D2iYe0kgmig https://www.youtube.com/watch?v=qXyXBDxQSu8 https://www.jbl.com/bluetooth-speakers/JBL+Flip+4.html

Sounds to me like the connection piece is bad. It might just need resoldering. But you probably will need to open it to do that.

Try wiggling the plug.

Try the following steps to stop subwoofer hum.

1. If the subwoofer is plugged into its own outlet, plug the subwoofer's power cord into an outlet shared by the other components. Use an extension cord if necessary.
2. If the hum persists, and your system includes a cable TV, disconnect the cable line. If the hum stops, install an isolation transformer on the cable.
3. If the hum persists, disconnect the remaining component cables one at a time until the hum stops. Install a coaxial isolation transformer on that cable.
4. If the hum persists, install a line-level ground loop isolator on the subwoofer's line-level feed cable. This usually solves most hum problems.
5. If nothing helps, disconnect all the audio cables from the subwoofer. Leave the subwoofer plugged in and switched on. If the subwoofer hums, it points to a defective unit. Contact the company's customer service to technical support.