Question about JBL S120PII Subwoofer

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No sound JBL 10'' POWERED, MODEL SUB 10, SKU7706477, BTP 2677695969,SERIAL 0406, PURCHASE 8/2006 Power is on, rumbles when system is tested, but makes no sound when the system is in use. 'Volume'' is turned all the way up. Thanks, Chas

Posted by gochas3 on


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TV 954

  • 3 Answers

SOURCE: jbl PB12 powered sub woofer problem

These subs have had many problems, all associated with the amplifier section. PB 12's with an "M" as part of the ser. no. were assembled in Mexico and these are the ones with the amp problems. JBL fixed mine and sent it back no charge, BUT it cost me nearly $100 to send it to them in the first place. I have another one that has had no problems at all. Try sending it back for repair. At best you'll get a rebuilt unit back, at worst a substantial discount from the company for a new sub.

Posted on Aug 09, 2007



SOURCE: jbl PB12 powered sub woofer

if your serial number starts with ha then it's probably a bad capacitor C72 . 6.8uf 100v np electrolytic. replace it with a higher voltage capacitor of the same value.

Posted on Jan 05, 2008


SOURCE: JBL Sub 12 continues to make clicking noise

check the audio amplifiers of the sub

Posted on Jul 13, 2009


  • 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


  • 1 Answer

SOURCE: My JBL Venue Sub 10 light stays red, will not

i have the same problem. don't as yet have a solution

Posted on Apr 17, 2010

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if your serial number starts with ha then it's probably a bad capacitor C72 . 6.8uf 100v np electrolytic. replace it with a higher voltage capacitor of the same value.

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