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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: Kef crossover RR 105.4
willem-57

Replies: 4
Views: 1264

PostForum: KEF speakers   Posted: Fri Dec 16, 2016 8:21 am   Subject: Kef crossover RR 105.4
Thx,
So i gambled right, the bigger one must be L1. Very Happy

To make the picture complete i've made a picture with the up and down side of the crossover together. It,s important to say that this is only ...
  Topic: Kef crossover RR 105.4
willem-57

Replies: 4
Views: 1264

PostForum: KEF speakers   Posted: Thu Dec 15, 2016 12:30 pm   Subject: Kef crossover RR 105.4
Thx for the reaction speakerguru,

What i wanna know certain if the L1 is the left one on the photo, ik think so, but i'm not shure. Because i cannot see it on the Kef drawing i got. Thatswy i have ...
  Topic: Kef crossover RR 105.4
willem-57

Replies: 4
Views: 1264

PostForum: KEF speakers   Posted: Wed Dec 14, 2016 11:08 am   Subject: Kef crossover RR 105.4
At first i will wish you all a happy Christmas and Newyear! Very Happy


As you know i've refurbished-rebuild a set of the 105.4 and still have questions about it's crossover. As Speakerguru already menti ...
  Topic: Shirley Horn
willem-57

Replies: 0
Views: 712

PostForum: Music for Lovers of Vintage KEF Speakers   Posted: Mon Dec 12, 2016 6:20 pm   Subject: Shirley Horn
Shirley Horn has made several beautiful albums witch you can call high-end productions.
I got 7 albums of her and can recommend the following:
You Won't Forget Me from 1991,
Here's to Life from 1 ...
  Topic: Kef 105.4 crossover refurbish & new bascabinets (p-6)
willem-57

Replies: 169
Views: 76063

PostForum: KEF speakers   Posted: Mon Dec 12, 2016 3:13 pm   Subject: Kef 105.4 crossover refurbish & new bascabinets (p-6)
I thought why also not damp the metal chassis strip of the B110, also less reflection there, for another sonic improvement... i hope. I have used velvet for this purpose. Not a big chance, but it help ...
  Topic: Kef 105.4 crossover refurbish & new bascabinets (p-6)
willem-57

Replies: 169
Views: 76063

PostForum: KEF speakers   Posted: Tue Dec 06, 2016 11:13 am   Subject: Kef 105.4 crossover refurbish & new bascabinets (p-6)
I tried to sell the Kef's 105.4 but at the end i didn't. Of course there where enough people who wanted them, but for the money they offered... i thought, never can buy these wonderful speakers again ...
  Topic: Audio Professional (floating) Synthese 2 tl speaker 1988
willem-57

Replies: 10
Views: 7100

PostForum: Other speakers   Posted: Sat Nov 26, 2016 9:10 am   Subject: Audio Professional (floating) Synthese 2 tl speaker 1988
The Seas tweeter that is in all 3 models of the mk1 version is the Seas H107.
Later mk 2 version of the Synthese 1 and 2 have other tweeter, i don't know whitch model.

The H107 without FerroFluid. ...
  Topic: Audio Professional (floating) Synthese 2 tl speaker 1988
willem-57

Replies: 10
Views: 7100

PostForum: Other speakers   Posted: Sat Oct 22, 2016 7:01 pm   Subject: Audio Professional (floating) Synthese 2 tl speaker 1988
The Synthese 1, 2 and 3 in the brochure of Audio Professional.
https://preview.ibb.co/nfuTLQ/Synthese1_2_3.jpghttps://preview.ibb.co/cBfFZk/Synthese2_MP23_12_16.jpg
  Topic: Audio Professional (floating) Synthese 2 tl speaker 1988
willem-57

Replies: 10
Views: 7100

PostForum: Other speakers   Posted: Fri Oct 14, 2016 7:44 am   Subject: Audio Professional (floating) Synthese 2 tl speaker 1988
I do not really know mutch how this works, but i do know that the developer, mr Schellekens, has experimented mutch before he was satified. Indeed the damping does mutch of the trick. Wink

Here ...
  Topic: Audio Professional (floating) Synthese 2 tl speaker 1988
willem-57

Replies: 10
Views: 7100

PostForum: Other speakers   Posted: Thu Oct 13, 2016 9:05 pm   Subject: Audio Professional (floating) Synthese 2 tl speaker 1988
These speakers where a hit in the Netherlands, Belgium and Germany in the 1980's and 90's. I have never seen them in an American or English magazine.
The transmission line ends at the bottom, the sam ...
  Topic: Audio Professional (floating) Synthese 2 tl speaker 1988
willem-57

Replies: 10
Views: 7100

PostForum: Other speakers   Posted: Sun Oct 09, 2016 2:35 pm   Subject: Audio Professional (floating) Synthese 2 tl speaker 1988
Past week i have visited a fellow music lover who has the bigger an top medel of the range, the Synthese 1 speakers and have not 1 but 2 pairs of them. Strange thing is that they are not 100% the same ...
  Topic: Audio Professional (floating) Synthese 2 tl speaker 1988
willem-57

Replies: 10
Views: 7100

PostForum: Other speakers   Posted: Thu Oct 06, 2016 8:58 am   Subject: Audio Professional (floating) Synthese 2 tl speaker 1988
I forgot to mention that the 'pillar' where the tweeter and midrange are housed is made from a heavy composite material and is completely dead. Idea
More than 10 years later B&W also used this ...
  Topic: Audio Professional (floating) Synthese 2 tl speaker 1988
willem-57

Replies: 10
Views: 7100

PostForum: Other speakers   Posted: Wed Oct 05, 2016 1:13 pm   Subject: Audio Professional (floating) Synthese 2 tl speaker 1988
Since a month i have also a pair of Synthese 2 speakers from 1988 from the Belgian speaker builder Ivan Schellekens, who designed them in the early 1980's and i must say, they sound awesome. The woofe ...
  Topic: Kef 105.4 crossover refurbish & new bascabinets (p-6)
willem-57

Replies: 169
Views: 76063

PostForum: KEF speakers   Posted: Mon Mar 14, 2016 10:51 am   Subject: Kef 105.4 crossover refurbish & new bascabinets (p-6)
Yust few pictures i made.

http://i816.photobucket.com/albums/zz86/willem-57/KefRR105.4-bovenzicht2-14.3.16_zpshgpbffpz.jpghttp://i816.photobucket.com/albums/zz86/willem-57/KefRR105.4-front3-14.3.16 ...
  Topic: Q90 Tweeter units
willem-57

Replies: 3
Views: 2580

PostForum: KEF speakers   Posted: Sat Mar 12, 2016 8:06 pm   Subject: Q90 Tweeter units
Sorry, but that can happen with a second hand deal. No warranty!
Now make the choice, ok, little more expensive as planned.
 
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