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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: Monitor Audio Ma1
Rait

Replies: 17
Views: 21628

PostForum: Other speakers   Posted: Fri Apr 22, 2016 10:44 am   Subject: Monitor Audio Ma1
Not sure if posters in this thread are aware but, the original series MA1 to 7 of the Monitor Audio line were designed by Martin Colloms, so he may be worth contacting for info. Not sure if he was in ...
  Topic: T27 replacement
Rait

Replies: 5
Views: 4484

PostForum: DIY with KEF drive units   Posted: Wed Feb 17, 2010 8:41 pm   Subject: T27 replacement
Thanks for the offer T.O. Chef, but I was looking to not only replace the T27s, but to improve on their performance with a modern, superior, tweeter.
  Topic: T27 replacement
Rait

Replies: 5
Views: 4484

PostForum: DIY with KEF drive units   Posted: Fri Feb 05, 2010 5:49 pm   Subject: T27 replacement
Yes, I agree that the Vifa 27SG29-04, does not stack up as a plausible option, however, the Vifa D27TG35-06 does & has, i believe, been used successfully. It is also considerably cheaper than the ...
  Topic: new member - recent ebay purchase - any info appreciated
Rait

Replies: 22
Views: 17474

PostForum: KEF Speakers from the 1970s   Posted: Thu Feb 04, 2010 11:34 pm   Subject: new member - recent ebay purchase - any info appreciated
Both the HiFi Answers version & the Pro9-TL are 13.5" wide!!
I have both sets of plans in front of me as i type having built the HiFi Answers TSL, in the 70's & contemplated building t ...
  Topic: T27 replacement
Rait

Replies: 5
Views: 4484

PostForum: DIY with KEF drive units   Posted: Thu Feb 04, 2010 9:42 pm   Subject: T27 replacement
I have heard that the Morel CAT298, 1" soft dome is an modern drop in replacement for the T27, having the same mounting hole positions & superior performance. Has anyone tried this & is ...
  Topic: new member - recent ebay purchase - any info appreciated
Rait

Replies: 22
Views: 17474

PostForum: KEF Speakers from the 1970s   Posted: Thu Feb 04, 2010 8:48 pm   Subject: new member - recent ebay purchase - any info appreciated
Rather than the Pro 9, i think you'll find they are based on Chris Rogers' earlier design which was published in HI-FI ANSWERS. That version used the Kef drivers & Coles supertweeter as well as t ...
  Topic: Modern Concerto
Rait

Replies: 5
Views: 3945

PostForum: DIY with KEF drive units   Posted: Wed Jul 23, 2003 7:24 pm   Subject: Modern Concerto
Does anyone know of a modern, tall, narrow cabinet design to house the old concerto drive units?
I have recently acquired a pair of some of the last produced Concertos in v.good cond. but am very dis ...
 
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