Harman Kardon JBL Flip black "high pitched noise subwoofer" Questions

...makes high pitched buzzing noise. When plugged in it does not. I have the same problem. But after a short time it stops even in battery mode (i.e. unplugged). Did you find a solution in the

high pitch noise coming out when plugged into the outlet; not hooked to any sound source; what can I do? thanks It can be the filter caps or the power amp module is going bad, read the service manuals

...high pitched noise and some cracking noises as well. It does seem to work otherwise. I get the same noise when the cable to the stereo is unplugged. Tried plugging it into another outlet. What could ...

...high pitched, then goes low pitched (progressively) and then stops. Sounds kind of like a capacitor is dissapating through the sub. The sub for sure isn't blown, and I've already removed and replaced ...

...high pitched squeal with or without input signal, gets loader after warming up. Most likely there are electrolytic capacitors in the power supply and also possibly in the amp sections that are going ...

...high pitch whistling noise.. Do you know where I can get hold of a Curcuit Diagram Since this is a sub I assume the sound is not coming from the speaker but is mechanical and coming from the amp in ...

high pitch screamming noise that would not stop. There is a chance that your wiring is producing this problem. Manufacturers don't always make equipment that is compatible with each other. The biggest

...high pitched trebble burning a hole in your head, Ok heres a cheap test, Take the speakers to another amp and test them, If same result then you know the answer Let me know the results thanks Make ...

...high pitched noise. When I exited I noticed one of my Alesis M1 MK2s wasn't working. It won't turn on now. A friend suggested it's just a fuse blown and I could replace it myself. If this is basic I ...

...high pitched intermittant squeal. It only stops when I switch the unit off. All other speakers working fine. Could be either the amp inside it or an Electrolytic Capacitor in the power section of it. ...