Beocenter 9500 sound problems

15 replies
EB
Offline
Epic B and O
Bronze
Posted September 12, 2023 at 08:21 GMT
#1642677
I have a question. I have a pair of Beolab 6000 from the 90s connected to my Beocenter 9500, and I have noticed that both speakers sound muffled.
I’ve bought new 8pin dins and there’s no difference. Is there a fault in the 9500 I need to look out for, or is it possible the drivers on the 6000 have gone at the same time?

I connected my Penta’s to the 9500, and they seem ok.

Any help would be greatly appreciated

Best regards
filip_kbh
Offline
filip_kbh
Bronze
Posted September 13, 2023 at 09:46 GMT
#1658759
Take off the fret and inspect the speakers. Quite sure that they need a refoam job which is quite easy.

Location: Copenhagen

EB
Offline
Epic B and O
Bronze
Posted September 13, 2023 at 14:00 GMT
#1658765
Thank you for your help.

Yes I did notice that one of the speakers drivers had a split in the foam, but would that cause both speakers to sound muffled?
EB
Offline
Epic B and O
Bronze
Posted September 13, 2023 at 14:03 GMT
#1658766
The cables between the Beocenter and Beolab are new, but I’ll check the sockets for the 8 pin din cables.

I did connect my Penta speakers to the Beocenter, and they sounded ok
filip_kbh
Offline
filip_kbh
Bronze
Posted September 13, 2023 at 17:24 GMT
Edited September 13, 2023 at 17:25 GMT
#1658769
Whoever did that refoaming job should have left it to somebody else. Besides the excess of glue, it even looks like the speaker cone is not touching the rubber surrounds. If the other speaker looks anywhere near this, I can totally understand that you would not get the expected sound results.

Location: Copenhagen

DI
Offline
Dillen
BronzeModeratorFounder
Posted September 13, 2023 at 17:37 GMT
#1658771
I agree.

Martin
EB
Offline
Epic B and O
Bronze
Posted September 13, 2023 at 22:27 GMT
#1658776
Yes it wasn’t done by a professional unfortunately.

I will order new drivers off eBay. My only concern is the part numbers don’t exactly match. The one’s on eBay are 8480232, and mine is 8480239
filip_kbh
Offline
filip_kbh
Bronze
Posted September 14, 2023 at 10:09 GMT
#1658781
Why don't you just order new foam surrounds and do the job properly? It really isn't complicated to do. Cut of the old misalligned surrounds and rinse of the glue with isopropyl alcohol. Order new foam surrounds from a certain store in Holland and do the job properly.

Location: Copenhagen

EB
Offline
Epic B and O
Bronze
Posted September 14, 2023 at 14:46 GMT
#1658785
Can you recommend a good quality foam kit?

I live in Australia
GL
Offline
Glitch
Bronze
Posted September 14, 2023 at 15:41 GMT
#1658786
Epic,

I suggest that you try to remove the old surrounds and glue before ordering replacement surrounds. You may end up fatally damaging the driver cones, depending on the glue used and your skill at removing the olds parts. This also opens up the possibility of ordering surrounds that will conceal any flaws left from the previous work.

I would also be very careful with using any solvents. They can have unintended consequences. When they work, they can work very well. When they don't, it can be a real mess. Small test areas are the prudent way to proceed.

Glitch
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