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SpeakerTalk
This forum has been set up to facilitate discussion of 1970s KEF speakers and drive units. The owner of the Forum has no connection with KEF Audio.
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Kefsui
Introductory Contributor
Joined: 12 Jul 2006
Posts: 1
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 Posted: Wed Jul 12, 2006 11:46 pm Post subject: 3-sided B200 |
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Hi all. I am new here but possess KEF Coda IIIs (in beautiful condition), KEF Caprice IIs, and have a pair of original Chorales on the way.
The 3-sided B200 on one of my Caprice IIs is very noisy - a scratching sound accompanies music and is repeated if I lightly touch the surface of the cone - worse near the outer areas.
I suspect its the voice coil but am open to correction...
My question is:
Is there anything I can do to try and fix this drive unit?
and
If not, does anybody know where I might be able to source a replacement drive unit?
Many thanks for any help you can give to a newbie in this forum!
Cheers
Matt |
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ColinR
Über Contributor 1000+
Joined: 31 Jul 2004
Posts: 1175
Location: Staffordshire
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| Posted: Thu Jul 13, 2006 12:18 am Post subject: |
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Your B200G's spider has sagged with age allowing the voice coil to touch the former.
Rotating the unit by 120 degrees now and again in six months time may equalise-out the sag.
Look out for them on German ePay and US ePay, where they pop-up from time to time. |
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