Question about KEF Audio KIT100 System

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KEF KIT 100 Sub woofer continuously buzzing

Subwoofer buzzes and distorts sound to the point it cannot be heard, as time goes by 1 to 2 hours this diminishes. Also noticed the fan is not spinning.

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Send me a request to my email address axel_g@mail.com and I send you a fix, Axel

Posted on Aug 10, 2008

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Why does our subwoofer all of a sudden start to buzz when we turn on our stereo/home theatre system on?


Well if it buzzes only for a couple minutes after turn on then it could be when the woofer starts pumping it produces pressure in the cabinet which creates a bonding motion that then closes the cracks, kinda like glue. Like blowing a balloon up in a box. The balloon is the pressure, OR Yes it could be your woofer is going bad. All speakers have voice coils. Tiny wire wrapped around a thin layer of cardboard then attached to the cone. This cone could be getting loose. But when the woofer heats up after a couple minutes it probably bonds the tiny wires so then the vibration or buzzing disappears. Over time woofers can die especially if it produces a lot of distortion, In a speakers life distortion kills and it doesn't matter how much power it can handle or how much money you spent on it.
Not all sub-woofers are alike. Some can handle the really low lows, and some can not. Check your settings too. Over time the vibration of the woofer will start to undo the glue, nails, screws, and even burn through the tiny wires in the voice coil. Oh and make your china crawl across the table... Have you been watching a lot more action movies? Some of the older woofers can't handle the newer digital deep bass frequencies... You may have to reconfigure your setup.

Sep 12, 2014 | Home Theater Systems

1 Answer

Kef Kit100 subwoofer buzzing


You have a bad set of Audio output IC's for the sub. There is two of them. TDA7293 REPLACE BOTH!!!
There is 4 on one side of board,and 2 on other "also 1 small one" The the two are for the sub,the other 4 are for the main speakers/surround. They sell on Ebay for $6-10 each or a kit of all 6 for $25.

Jan 18, 2009 | KEF Audio KIT100 System

1 Answer

I have a kef Kit100. My subwoofer is making a loud buzzing noise, what do I do?


You might have a bunch of bees living inside the sub?
You have a bad set of Audio output IC's for the sub. There is two of them. TDA7293 REPLACE BOTH!!!
There is 4 on one side of board,and 2 on other "also 1 small one" The the two are for the sub,the other 4 are for the main speakers/surround. They sell on Ebay for $6-10 each or a kit of all 6 for $25.

Jan 18, 2009 | KEF Audio KIT100 System

1 Answer

KEF KIT100 Buzzing


You have a bad set of Audio output IC's for the sub. There is two of them. TDA7293 REPLACE BOTH!!!
There is 4 on one side of board,and 2 on other "also 1 small one" The the two are for the sub,the other 4 are for the main speakers/surround. They sell on Ebay for $6-10 each or a kit of all 6 for $25. I would replace all 6 on your system. To insure that the other's do not go bad after fixing the bad ones.

Dec 03, 2008 | KEF Audio KIT100 System

1 Answer

Kef kit100 buzzing subwoofer


You have a bad set of Audio output IC's for the sub. There is two of them. TDA7293 REPLACE BOTH!!!
There is 4 on one side of board,and 2 on other "also 1 small one" The the two are for the sub,the other 4 are for the main speakers/surround. They sell on Ebay for $6-10 each or a kit of all 6 for $25.

Oct 25, 2008 | KEF Audio KIT100 System

1 Answer

Kef kit 100 buzzing popping


You have a bad set of Audio output IC's for the sub. There is two of them. TDA7293 REPLACE BOTH!!!
There is 4 on one side of board,and 2 on other "also 1 small one" The the two are for the sub,the other 4 are for the main speakers/surround. They sell on Ebay for $6-10 each or a kit of all 6 for $25. I would have all 6 replaced. It is better to run a matched set.

Sep 05, 2008 | KEF Audio KIT100 System

2 Answers

KEF KIT100 buzzing clicking noise


You have a bad set of Audio output IC's for the sub. There is two of them. TDA7293 REPLACE BOTH!!!
There is 4 on one side of board,and 2 on other "also 1 small one" The the two are for the sub,the other 4 are for the main speakers/surround. They sell on Ebay for $6-10 each or a kit of all 6 for $25.

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I see your email address, will do, Axel

May 29, 2008 | KEF Audio KIT100 System

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Kef Kit 100 Subwoofer Buzz


i got the same buzz problem

Oct 26, 2007 | KEF Audio KIT100 System

3 Answers

Kef kit 100 subwoofer buzzing


if you have still the problem, I got the solution from Kef USA. It is somewhat involved in taking the unit apart and replacing a resistor and capacitor. With the instructions supplied any electronic techician or TV repair man can do it in less then 1 hour. email me and I forward the instruction in PDF: Xxel_g@mail.coX . Replace the first X with a and last X with m in my email address.

Jul 13, 2007 | KEF Audio KIT100 System

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