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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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  Topic: BAF internal wadding
ColinR

Replies: 9
Views: 6280

PostForum: DIY with KEF drive units   Posted: Sun Oct 07, 2012 2:38 am   Subject: BAF internal wadding
Google this material

http://www.falconacoustics.co.uk/acoustic-wadding-polyester-damping-loudspeaker-cabinets-enclosures.html

(not an advert Wink )

it's used to stuff pillows and duvets, ...
  Topic: New B110A's for............
ColinR

Replies: 4
Views: 4876

PostForum: LS3/5a   Posted: Tue Oct 02, 2012 3:00 pm   Subject: New B110A's for............
Follow your nose to



http://www.falconacoustics.co.uk/falcon-kef-b110-sp1003-new-ls35a-ab1.html
  Topic: A little something that I've had a slight involvement with..
ColinR

Replies: 4
Views: 2689

PostForum: KEF Speakers from the 1970s   Posted: Tue Oct 02, 2012 2:59 pm   Subject: A little something that I've had a slight involvement with..
Follow your nose to


http://www.falconacoustics.co.uk/falcon-kef-b110-sp1003-new-ls35a-ab1.html

I expect the speaker smashers on sleezeBay to get a little upset now as the matched pairs do come ...
  Topic: Coupled cavity bass.... What's the thinking ?
ColinR

Replies: 52
Views: 17940

PostForum: KEF speakers   Posted: Mon Sep 17, 2012 3:03 pm   Subject: Coupled cavity bass.... What's the thinking ?
T'was Hi-fi World who lifted my contribution to www.soundfountain.com about Mordaunt Short MS-737s without prior permission or consent.

So would any reasonable individual believe their test methods ...
  Topic: detoriated cloth surround
ColinR

Replies: 1
Views: 2593

PostForum: Other speakers   Posted: Thu Sep 13, 2012 11:29 am   Subject: detoriated cloth surround
Like shock sled silicone damping for radio controlled cars to damp lift/lower deices or dampers on tone arms, you should be able to source some cellulose dope from model plane/glider enthusiast source ...
  Topic: Which units were used in which speakers ?
ColinR

Replies: 2
Views: 2710

PostForum: KEF speakers   Posted: Fri Jul 13, 2012 2:04 pm   Subject: Which units were used in which speakers ?
http://www.madisound.com/services/replacement-suggestions.php

&

http://www.madisound.com/pdf/kef/Kef%20Loudspeaker%20Systems%20Guide%201990.pdf
  Topic: Loudspeaker magnets
ColinR

Replies: 12
Views: 6985

PostForum: KEF speakers   Posted: Fri Jul 13, 2012 10:41 am   Subject: Loudspeaker magnets
Google the "electrochemical series" metals higher up the list will dissolve into solution to "protect" those lower down - i.e. form a battery.

The salient point is dissolve, if ...
  Topic: Model P60
ColinR

Replies: 36
Views: 28028

PostForum: KEF speakers   Posted: Wed Jul 04, 2012 2:25 pm   Subject: Model P60
Stick a hair dryed in the tweeter hole on it's coolest setting and a domestic fan just in front of the woofer hole to "de-pong" your boxes.
  Topic: Kef 104/2 restauration advice needed from Australia
ColinR

Replies: 8
Views: 4934

PostForum: KEF speakers   Posted: Fri Jun 15, 2012 2:04 pm   Subject: Kef 104/2 restauration advice needed from Australia
Main question about my Mid range
The lower midrange cone B110 is damaged in speaker 014139A., is not working well & Can it be repaired or even exchanged with original or replacement? & is ...
  Topic: Canadian Tangent Speaker information
ColinR

Replies: 39
Views: 36289

PostForum: Other speakers   Posted: Wed Jun 13, 2012 10:32 am   Subject: Canadian Tangent Speaker information
Interior cabinet lined with soft, white fiberglass type stuff

It's the same material used for stuffing duvets/pillows, therefore available from non-audio related sources Very Happy .
  Topic: Rebuilding a pair of Kef 105 Mk I's T52 Replacement ?
ColinR

Replies: 17
Views: 9054

PostForum: KEF Speakers from the 1970s   Posted: Sat Jun 09, 2012 11:39 am   Subject: Rebuilding a pair of Kef 105 Mk I's T52 Replacement ?
He smashed them up Crying or Very sad ~10 days after his last post and parted them out on sleezeBay to add to his 1200+ dealer feedback.
  Topic: Speakers for Turkeys on ePrey
ColinR

Replies: 144
Views: 72556

PostForum: KEF speakers   Posted: Sun Jun 03, 2012 10:36 am   Subject: Speakers for Turkeys on ePrey
For all you North American bextrene smokers and those who cannot work out currency exchange rates,

http://www.canuckaudiomart.com/details/649002177-kef_cantana_nos_or_nos_in_factory_sealed_box/

...
  Topic: Enclosure damping
ColinR

Replies: 5
Views: 4185

PostForum: KEF Speakers from the 1970s   Posted: Mon May 28, 2012 11:07 am   Subject: Enclosure damping
Is felt or clay mixed to bitumen to improve properties of bitumen

Back to Newton's Laws and moments of inertia Very Happy, adding mass to a damping material will lower its resonant frequency and therefore ...
  Topic: Enclosure damping
ColinR

Replies: 5
Views: 4185

PostForum: KEF Speakers from the 1970s   Posted: Sun May 27, 2012 4:00 pm   Subject: Enclosure damping
Evode is now owned by Bostik so bitumen based automotive products now fall under the Supaglue brand.

Dupont is the other big player but requres large volumes so Falcon Acoustics has stopped doing D ...
  Topic: Speakers for Turkeys on ePrey
ColinR

Replies: 144
Views: 72556

PostForum: KEF speakers   Posted: Sun May 27, 2012 3:43 pm   Subject: Speakers for Turkeys on ePrey
Very Happy

My minor contribution comes from a bextrene smoker, 849 "Buy Now" for a pair of Constructor Series B139s.

Apart from the unauthorised links to copyright sites, he states that the ...
 
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