Recent content by axecise

The problem is almost entirely fixed when the boombox is being charged while playing - why would that be??

I have this problem too! It seems to be pretty common amongst JBL boomboxes, and it surely is a very big problem. The hissing sound is ridiculously loud at times, especially when below 50% battery. I had warranty , and I replaced the boombox for a brand new one, which had the same problem from...