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BeoLab 4000 - Clicking noise

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This post has 8 Replies | 1 Follower

ebcct
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ebcct Posted: Tue, Mar 31 2020 5:01 PM

Hello everyone. I'm new here and very happy to be part of the forum. ( Is there a presentation section ? )

I’m a 25 French teacher and I have a question! (Many actually but It’ll come later ;) )

I have Mk1 BeoLab 4000 speakers linked to a BeoSound 4, everything works fine and I’m very pleased with it. But I noticed months ago that, when in standby mode (I never turn them off), my speakers randomly make a kind of ticking noise. I doesn’t happen when there’s music playing or the TV sound on, it always work perfectly perfect. It sounds like a metal sounds, as if the metal was contracting or expanding (like wood that “works” on its own). It’s not much of a problem since everything works fine, but I thought I should ask anyway.

Thanks for your help, have a good day.

Manu

matador43
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matador43 replied on Tue, Mar 31 2020 6:07 PM

Hi Manu, and welcome to Beoworld…

Now you mention that Big Smile

Is it a regular cracking sound or does it happened from time to time only?

I have a pair of BL4000 too, they're standing on wood cubes and I sometimes use to hear small "detonations".

I have always put them on the wood work (it is raw, not processed), but now you talk, maybe it is from the speakers ?

ebcct
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ebcct replied on Tue, Mar 31 2020 7:08 PM

Hello, thanks for the answer!

The time between the tic sounds isn't regular, but it happens very often, mostly after I use the speakers for several hours and put them in stand by mode. I don't think it comes from the audio parts because nothing's wrong when there's audio playing, and it really sounds like metal, not like an amp 'blop'. I was thinking about taking it to a specialist but I think it might be costly and useless!

Keith Saunders
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This is actually quite a common problem with the early Beolab 4000's

If you open up one of your Beolab 4000's you will almost always find that the foam inside is falling apart into a soft almost liquid form.

Have a look at the tread HERE scroll down and you will see a picture of what happens and teh damage it can cause.

Regards Keith....

Keith Saunders
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Also have a look at the thread HERE

Regards Keith....

ebcct
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Lyon, France
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ebcct replied on Tue, Mar 31 2020 8:09 PM

Thanks for the tip Keith, I checked the thread.

Unfortunately I'm not skilled and confident enough to open them up myself. I'm gonna call my (fantastic) repair guy when the containment will be over. I hope it's just the aluminium cooling down and expanding or contracting... But still happy that they're working great

ebcct
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ebcct replied on Thu, Apr 9 2020 12:53 PM

Update - Mine have the white foam, number 18xxxxx! Still trying to figure it out. My BO repair guy doesn't know!

leosgonewild
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When this clicking sound occurs, does the led go from red to green?

"You think we can slap some oak on this thing?"

ebcct
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ebcct replied on Thu, Apr 9 2020 4:33 PM

Nope, still green and doesn't affect the music playing, and still red  on stand by mode

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