Question about Harman Kardon HKSUB 12 Subwoofer

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Subroofer i had unpluged it from the wall and now

Subroofer i had unpluged it from the wall and now it just wants to thump like the speaker is blown out

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It is throw away the speaker and put a new pile driver sub in the box.

Posted on Jun 23, 2009

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Posted on Jan 02, 2017

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1 Answer

Sound system makes a thump thump noise


Your speaker is now blown.. Replace the Speaker and you will get sound back instantly. Happened to my Drivers Speaker last week, replaced the speaker and life is good again.

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How to replacea bass driver in mackie thump 15a


"How to replace bass driver in mackie thump 15a".
Did you mean,disassembly the speaker enclosure?
Just remove the 16 screws at the rear cabinet, using a screwdriver.
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Jvc 56 inch television went black, then a large thumping noise, and I tried shutting off the power and could not, so I had to unplug the television; the television now will not come on.


sounds like the WP30 or WP74 series that has a convergence shutdown which will usually cause the thumping through the speakers. Unplug the convergence power board and see if the set will power up. Do not remove the rear cover the board is up front behind the speaker grille. Never remove the rear cover on a JVC rear projection as it can damage the digital circuits due to the safety interlock on various JVC models.

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I bouht my boston pv350 subwoofer from binglee at beresfield a bit over 12 months ago . i have hardly used it and now it wont work . It has power thats all could you please let me know what i can do with...


call customer service and request info on warranty service period. second ; unplug the sub..for 10 minutes and you should hear a thump when plugging it back to the wall socket. check that the volume is turned up-maximum and finally pull the RCA plugs out- then back into the sub. again you should hear a thump. If no thump. and customer service does not assist, it is a job for a audio repair tech.hope you see something during the steps above.

Mar 04, 2010 | Boston Acoustics PV350 Subwoofer

1 Answer

I have a 2000 Z3 and there is a thump that comes from the speaker


Check to see if at the amp there is a strand of wire crossing over. i had a friend onetime who had the same problem and they just didn't twist the wire all the way before connecting it.

Aug 20, 2009 | Car Audio & Video

1 Answer

Driver side speaker and sub woofer make an popping


they could be blown try replaceing them and see if it helps

Jul 27, 2009 | Car Audio & Video

1 Answer

Only one thump when car is turned on. problem in amp strength or subwoofer?


try pluging in a diff, speaker to the amp see if u get sound.try powering the sub with a home radio just to see if u get sound at all if ur getting sound from the sub then its the amp but u could of damaged it when the amp over heated

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Subwoofer "thumping" w. no audio feed


You need to check your ground connection. If there is a bad ground there will be feedback to the amp and it will just sit there and loop back with the Thump, Thump, Thump sound. I had to wire my amp's ground all the way back to the negative battery terminal. It was a pain but I have never had a problem since :)

Feb 12, 2008 | JBL SCS125A System

1 Answer

Speaker


any local electronics store, radio shack for example (if you have one close by). just check the speaker size or bring it with you. otherwise, you might want to just try hot gluing the speaker back together, it usually works pretty good.

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