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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: Bass dip - R107/2- help!!
clem_o

Replies: 6
Views: 4164

PostForum: KEF speakers   Posted: Thu Sep 25, 2008 8:56 am   Subject: Bass dip - R107/2- help!!
Unfortunately, it's the front edge suspension that's dominating in this case. The diaphragm + spider (corrugated cloth) is actually getting pulled by it. The rear suspension spider actually looks o ...
  Topic: total 107 refurbishment
clem_o

Replies: 25
Views: 11267

PostForum: KEF speakers   Posted: Thu Sep 25, 2008 1:35 am   Subject: total 107 refurbishment
Niiiiiiiice!

Knowing KEF I'm sure the system will still sound better than it looks!

Cheers
  Topic: Bass dip - R107/2- help!!
clem_o

Replies: 6
Views: 4164

PostForum: KEF speakers   Posted: Wed Sep 24, 2008 1:45 pm   Subject: Bass dip - R107/2- help!!
Hi speakerguru,

No other R107 to try, however have tried R104/2, R105/3 and R105/2, in the same room and at the same spot. All of these have what you may call as nice, fast and punchy bass. The 1 ...
  Topic: Bass dip - R107/2- help!!
clem_o

Replies: 6
Views: 4164

PostForum: KEF speakers   Posted: Wed Sep 24, 2008 1:21 am   Subject: Bass dip - R107/2- help!!
Thanks for the suggestions!

Amplifier was a modded Adcom 555 II, which performed very well driving a 105/3, 105/2 and 104/2. Cables are admittedly "ordinary", gauge 12 stranded wire, app ...
  Topic: total 107 refurbishment
clem_o

Replies: 25
Views: 11267

PostForum: KEF speakers   Posted: Wed Sep 24, 2008 1:12 am   Subject: total 107 refurbishment
If anyone wants to see them, either pm me or tell me how to publish them please.

Please do publish!


Cheers
  Topic: Bass dip - R107/2- help!!
clem_o

Replies: 6
Views: 4164

PostForum: KEF speakers   Posted: Tue Sep 23, 2008 2:18 am   Subject: Bass dip - R107/2- help!!
Hello everyone!

I am helping refurbish an R107/2. The midrange and treble sound really great, as expected, but the bass is distinctly weak (no punch at all), albeit goes very deep (listening done ...
  Topic: total 107 refurbishment
clem_o

Replies: 25
Views: 11267

PostForum: KEF speakers   Posted: Mon Sep 22, 2008 11:19 pm   Subject: total 107 refurbishment
pm sent! thanks!!
  Topic: total 107 refurbishment
clem_o

Replies: 25
Views: 11267

PostForum: KEF speakers   Posted: Sun Sep 21, 2008 3:04 pm   Subject: total 107 refurbishment
Would you be able to roughly remember how the bass cabinets were "stuffed" with foam? I am in the process of restoring a 107/2 and unfortunately someone's been into them before. Some of th ...
  Topic: Suggestions
clem_o

Replies: 2
Views: 2943

PostForum: DIY with KEF drive units   Posted: Sun Sep 14, 2008 2:16 am   Subject: Suggestions
Hi SaSi,

In fact I have both Laud and Praxis (with the latter on loan from the univsersity). So yes, measurement of the actual response shouldn't be a problem! :-)

I am not sure how much usabl ...
  Topic: Schematic for Kube 107/2 (?)
clem_o

Replies: 4
Views: 3722

PostForum: KEF speakers   Posted: Sat Sep 06, 2008 2:13 pm   Subject: That would be great!
A very generous offer!

I will let you know by Monday - it all depends if we come home with a pair of R107/2 then or not!

Cheers!
  Topic: Schematic for Kube 107/2 (?)
clem_o

Replies: 4
Views: 3722

PostForum: KEF speakers   Posted: Fri Sep 05, 2008 12:13 pm   Subject: Schematic for Kube 107/2 (?)
Ah!

How far off would the Kube 100 be if paired with the 107/2 loudspeaker?

(Sorry I have to ask - the loudspeakers in question are in a showroom and they don't have a Kube 107/2).

Many t ...
  Topic: Schematic for Kube 107/2 (?)
clem_o

Replies: 4
Views: 3722

PostForum: KEF speakers   Posted: Thu Sep 04, 2008 1:25 am   Subject: Schematic for Kube 107/2 (?)
Was there a specific Kube developed for the 107/2? I saw the curves published over on Stereophile, not sure if they are duplicatable on the Kube 100 or Kube 200.

Many thanks,

Clem
  Topic: Any inputs/comments: T52B, B110B and B200Gs.
clem_o

Replies: 2
Views: 3045

PostForum: DIY with KEF drive units   Posted: Wed Sep 03, 2008 10:16 am   Subject: CS9 crossover...
Hi Colin!

Many thanks for the heads-up!

I actually evaluated the sound of the CS9 design (DN27 crossover driving the B110B and the T52B). This was some time ago, paired off with the LF section ...
  Topic: Any inputs/comments: T52B, B110B and B200Gs.
clem_o

Replies: 2
Views: 3045

PostForum: DIY with KEF drive units   Posted: Wed Sep 03, 2008 8:50 am   Subject: Any inputs/comments: T52B, B110B and B200Gs.
Hi all, I need some suggestions!

Have had these drivers sitting around for quite a time, haven't really been used. After listening to a pair of 107/2 vs my 105/3, I've been inspired to give these ...
  Topic: I believe I've solved the 105.2 bass problem....Vifa!
clem_o

Replies: 19
Views: 11655

PostForum: KEF Speakers from the 1970s   Posted: Tue Dec 20, 2005 5:48 am   Subject: I believe I've solved the 105.2 bass problem....Vifa!
Just picked this up from a guy's ad selling a pair of 105.2:

"KEF REFERENCE SERIES 105.2 WITH WOOFERS REBUILT 10/05 THEY WERE BUZZING AT LOW VOLUME WAS TOLD THE SPIDER WHICH SUPPORTS THE CONE WAS S ...
 
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