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JBL SUB160 has power, but no sound output

I have a JBL SUB160 subwoofer. I was playing around with moving it to a few new locations today. Every time I moved it,it worked fine. Then, on my last move I sat my Yamaha receiver on top of it (along with a few other components), turned it on... and nothing! I'm using the LFE input, but I also tried the high level inputs and still nothing. Do you think moving a receiver (a.k.a. big magnet!) caused my sub to stop working? The power light on the sub still comes on (green), but it acts like it is getting no input. If I turn the volume of the sub all the way up, I get nothing (no humming). I've ried about every combination of inputs (all confirmed working) to the sub, and nothing...

Help!!

Thanks!

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SOURCE: my magnet cracked on my jbl sub woofer can it be

You might be able to get the manufacturer to replace it. Sub woofer repair is possible and some manufactures do offer that service, you'll have to check with them though. There is one other thing to consider- does it still work? If so you might be in luck. The magnet is there for its magnetic feild not how it looks. So if the magnetic field is un-affected and the voice coil is in one piece and un-obstructed it should be just fine. If the field is slighty out of place or not as strong it will probably affect its performance though. Good luck.
-Dynami

Posted on Mar 29, 2009

MECP Guy
  • 344 Answers

SOURCE: My jbl venue series subwoofer 10 keeps making a popping noise

sounds like the capacitors need to be replaced make sure you replace them with the same value mF

Posted on Feb 15, 2010

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SOURCE: JBL Subwoofer - Intermittent operation

Sometimes bad caps show a lifting or rounding of the top of the cap, sometimes this top will split from heat and pressure and sometimes it will not show any sign of damage but will be dry inside and its capacitance value will drop to a very low value. Replace the big power supply caps and test again. Get the same size, value and voltage rating. You can go higher on voltage rating and a bit on value. Getting a similar size or something that will fit in the same space is important also.

Posted on Mar 24, 2010

  • 1 Answer

SOURCE: the fuse keeps burning out in my jbl sub 10, even

poor design, the amps that are screwed to the heat sink are below a transistor which is catching all the heat,heat rises and changes the bias of the transistor so high it causes runway in circuits that results into failure also the amplifiers are sealed with no air flow, this can't be good.Maybe if they put air vents or remove the cover to panel then the heat will have somewhere to go instead of just building up inside.If this problem is not fixed a replacement is going to fail too.good price bad design.

Posted on Sep 02, 2010

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