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BL8000 foam replacement result

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BenSA
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BenSA posted on Thu, Feb 7 2019 1:57 PM

Hi

I decided to replace the foam in my BL8000s. They have been working fine but as the foam causes such damage with time I thought I'd better do it. I didn't buy a kit but bought foam...cut it to size etc. Old foam was crumbly and almost felt wet. 

Once I put the speakers together again I was absolutely astonished at the change in the sound! They sounded magnificent. Treble was clearer...bass much tighter sounding and overall amazing. To be honest I almost had a tear in my eye. 

Anyone who hasn't changed their foam on their speakers....do it...its worth the hassle!

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OldJack
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Hi BenSA!

Mine are 20 years old,still going strong.Never opened.All I have done,some 4 years ago replaced fret cloths(all by myselfSmile)

Now,looks like it's time to check foam.Can you tell me what kind of foam you used as replacement?

 

Beogram 6500 MMC2,Beosound Ouverture,2xBeolab 8000,2xBelolab 4000,Beolab 2,Beolab 7.2,Beo4 navi, 2xBeocom2,Serene,Beosystem 3 mk3,H6 2nd gen,Earphones E8,A8,A9 keyring,Beoplay A1,Bottle opener,Beoplay A2 active(thanks Botty)Wine Set(thanks Botty),4Ktv Samsung 55'',Beolab 7.1 with 42''Panasonic plasma,,Oppo udp-203, LinTronic.

BenSA
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BenSA replied on Thu, Feb 7 2019 2:15 PM

Hi OldJack

To be honest I just went to a foam supplier and just looked for one that looked the most similar. I didn't worry about the colour as its inside the speaker. 

Michael
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Doesn’t sound right. BL8000 bass element uses rubber surrounds and not foam. They don’t deteriorate in the same speed or way as BL6000 does.

The BL 8000 does have foam dampeners inside that does deteriorate and can cause issues with the internal electronics and also cause sound differences due to not damping the case correctly anymore.

If you really replaced your rubber surrounds with foam on BL 8000 I’m sure there’s a different sound but the foam will wear in a bit but probably never be as light as the thin rubber is.

I also do not think that treble would improve by this operation. Maybe a difference in mids however since these speakers rely on the bass to play those frequencies too.

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OldJack
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I guess we are not talking about rubber surrounds around speakers,but about this

http://forum.beoworld.org/forums/t/15962.aspx

Beogram 6500 MMC2,Beosound Ouverture,2xBeolab 8000,2xBelolab 4000,Beolab 2,Beolab 7.2,Beo4 navi, 2xBeocom2,Serene,Beosystem 3 mk3,H6 2nd gen,Earphones E8,A8,A9 keyring,Beoplay A1,Bottle opener,Beoplay A2 active(thanks Botty)Wine Set(thanks Botty),4Ktv Samsung 55'',Beolab 7.1 with 42''Panasonic plasma,,Oppo udp-203, LinTronic.

BenSA
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BenSA replied on Fri, Feb 8 2019 8:25 AM

I meant the interior foam..the dampening. I would haven't though that changing it would have made such a drastic change in the sound but it did. The old foam totally changes consistency of time becomes like glue. Clearly the change effects the sound. 

Thames
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I am hoping that I'm not to late to get an answer to this question...

I was able to buy the 'official' foam parts for my BL8000's.

What did you use to 'glue' the replacement foam into place?

Thank you in advance.

Beobuddy
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Thames:

I am hoping that I'm not to late to get an answer to this question...

I was able to buy the 'official' foam parts for my BL8000's.

What did you use to 'glue' the replacement foam into place?

Thank you in advance.

 

None, the official foam has a sheet with instructions. No glue needed.

 

Thames
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Ok, I see now. I guess I should have considered that it is just a friction fit. Still seems like some of the long pieces might shift around. 

Thank you for that!

BTW: I think the B&O dealer may have sold me too many of these foam kits. I have 2 speakers and 6 sets of foam. Anyone need the extras?

 

Super2
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Super2 replied on Tue, Mar 23 2021 10:15 PM

Hi Thames, 

I have recently bought a gorgeous pair of mk 1 beolab 8000's. It sounds like I should replace the foam. If you still have spare then please let me know if you would like to sell a set. And I would appreciate any tips on the process. Thanks!

Thames
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Thames replied on Fri, Jul 16 2021 7:52 PM

I'm super sorry I didn't see your post until now. Do you still need the foam?

I still have qty 4 of the 'kits', enough for 2 pairs of speakers. 

If you (or anyone else) still needs them let me know. I'm not sure of the 'correct' way to trade contact information on the forum so let me know.

matador43
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Hi Alls,

Thanks to Thames, a template to custom make BL8000 foams is now available in the wiki section of the forum.

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