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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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Author Message
  Topic: IMF TLS50
mech986

Replies: 2
Views: 4946

PostForum: Other speakers   Posted: Tue Apr 01, 2014 11:10 pm   Subject: IMF TLS50
Just to update for those that might find this thread, Falcon Acoustics in the UK now carry the replacements for mids, tweeter and super tweeter as well as crossover parts for the IMF TLS 50 and 50 Mk. ...
  Topic: Troubles with a pair of IMF TLS 50
mech986

Replies: 7
Views: 6834

PostForum: Other speakers   Posted: Tue Apr 01, 2014 10:46 pm   Subject: Troubles with a pair of IMF TLS 50
https://www.dropbox.com/s/6576gsaiunzm8tx/IMF%20TLS%2050%20MKII.jpg

I would strongly recommend as above to replace all resistors and capacitors with new from Falcon. Also, unsolder one leg from ea ...
  Topic: TDL Reference Standard Transmission Line missing bass!
mech986

Replies: 6
Views: 4892

PostForum: Other speakers   Posted: Tue Apr 01, 2014 10:32 pm   Subject: TDL Reference Standard Transmission Line missing bass!
Did you ever get the drivers repaired, or was there a problem with the crossover? Usually, the TDL woofers are pretty robust, seems odd that one from each speaker would have failed.
  Topic: 15 and 11 ohm Rogers LS3/5a's
mech986

Replies: 7
Views: 11009

PostForum: LS3/5a   Posted: Sat Apr 15, 2006 3:55 am   Subject: 15 and 11 ohm Rogers LS3/5a's
Here's a little information on the Rogers transistion from the "15 ohm" to "11 ohm" versions and why some Rogers look like they had B110B SP1057's.

Well, to be fair, the KEF B11 ...
  Topic: B110 Sp 1057
mech986

Replies: 6
Views: 5621

PostForum: DIY with KEF drive units   Posted: Sat Apr 15, 2006 3:52 am   Subject: B110 Sp 1057
Well, to be fair, the KEF B110C SP1228 looks very much like the B110B SP1057 because they use a similar looking flatter surround and have a smooth outer cone surface (the damping is on the back of the ...
  Topic: Advice sought on problem with B200 SP1075
mech986

Replies: 6
Views: 5597

PostForum: KEF speakers   Posted: Tue Oct 19, 2004 6:45 pm   Subject: KEF B200 SP1075 voice coil rub
Hi,

Try remounting the B200 in a different position, i.e., turn the driver 120 degrees for about 2 weeks, then again 120 degrees for 2 weeks. The voice coil spider suspension tends to sag after ...
 
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