SpeakerTalk Forum Index SpeakerTalk
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.
 
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

Search found 557 matches
SpeakerTalk Forum Index
Author Message
  Topic: 105.2 clone with T33 tweeters?
audiolabtower

Replies: 20
Views: 1074

PostForum: DIY with KEF drive units   Posted: Mon Jul 16, 2018 9:13 pm   Subject: 105.2 clone with T33 tweeters?
That is the one Fincham or Linkwitz has no knowledge of, thus not a Kef design and most probably sent in by an owner or third party.
  Topic: Can someone ID these KEF AWA speakers?
audiolabtower

Replies: 3
Views: 43

PostForum: KEF speakers   Posted: Mon Jul 16, 2018 2:44 pm   Subject: Can someone ID these KEF AWA speakers?
Sorry, I'm in the UK and would not have any idea of the market in NZ, if that is where you are. Obviously non original tweeters will affect things.
  Topic: Can someone ID these KEF AWA speakers?
audiolabtower

Replies: 3
Views: 43

PostForum: KEF speakers   Posted: Sun Jul 15, 2018 12:16 pm   Subject: Can someone ID these KEF AWA speakers?
They look like Calindas, if the bass unit has no voice coil and a passive radiator, and the tweeter cut out is certainly for a T27.

http://uk.kef.com/explore-kef/kef-museum/1970s/corelli-calinda-an ...
  Topic: 105.2 clone with T33 tweeters?
audiolabtower

Replies: 20
Views: 1074

PostForum: DIY with KEF drive units   Posted: Tue Jul 10, 2018 10:12 pm   Subject: 105.2 clone with T33 tweeters?
I investigated that active crossover and got in touch with Laurie Fincham at THX and Siegfried Linkwitz who did the Wireless World active design with his 4th order crossovers and neither could remembe ...
  Topic: 105.2 clone with T33 tweeters?
audiolabtower

Replies: 20
Views: 1074

PostForum: DIY with KEF drive units   Posted: Tue Jul 10, 2018 12:45 pm   Subject: 105.2 clone with T33 tweeters?
rather small ferrite coils.

For info Kef used iron dust rather than the cheaper ferrites in the reference series because had much superior saturation performance as well as lower low level distorti ...
  Topic: KEF 104/2 - restoring, surrounds, ferro fluid and caps
audiolabtower

Replies: 14
Views: 459

PostForum: KEF speakers   Posted: Wed Jun 13, 2018 11:31 am   Subject: KEF 104/2 - restoring, surrounds, ferro fluid and caps
Perhaps a surplus of viscosity makes the coil more difficult to move and thus reduces sensitivity to produce a less bright sound?
  Topic: What idiot decided to cut a hole in these?
audiolabtower

Replies: 4
Views: 423

PostForum: KEF Speakers from the 1970s   Posted: Sun May 27, 2018 1:30 pm   Subject: What idiot decided to cut a hole in these?
I did wonder if they left the series cap in the bass circuit too!
  Topic: What idiot decided to cut a hole in these?
audiolabtower

Replies: 4
Views: 423

PostForum: KEF Speakers from the 1970s   Posted: Sat May 26, 2018 7:08 pm   Subject: What idiot decided to cut a hole in these?
Wink
  Topic: What idiot decided to cut a hole in these?
audiolabtower

Replies: 4
Views: 423

PostForum: KEF Speakers from the 1970s   Posted: Fri May 25, 2018 8:32 pm   Subject: What idiot decided to cut a hole in these?
https://www.ebay.co.uk/itm/kef-floor-standing-speakers-model-105-and-full-technics-music-system/132626012320?hash=item1ee12058a0:g:vp0AAOSwlgNa~KOF

eBay item number:132626012320
  Topic: Bringing the 105.2 back to life
audiolabtower

Replies: 10
Views: 5231

PostForum: KEF Speakers from the 1970s   Posted: Wed May 16, 2018 12:48 pm   Subject: Bringing the 105.2 back to life
Good story, well worth doing. In their day they were one of the finest speakers you could buy, and even today unless you need 110 dB to go deaf quickly they are still one of the best ever.
  Topic: 103/4 - B160 SP1278 Swap w/ B160 SP1314
audiolabtower

Replies: 8
Views: 659

PostForum: KEF speakers   Posted: Thu May 10, 2018 11:32 pm   Subject: 103/4 - B160 SP1278 Swap w/ B160 SP1314
What a great story, and a fine way to restore a speaker the original designers and makers spent a great deal of effort on.
  Topic: 105.2 clone with T33 tweeters?
audiolabtower

Replies: 20
Views: 1074

PostForum: DIY with KEF drive units   Posted: Sat Mar 03, 2018 1:03 pm   Subject: 105.2 clone with T33 tweeters?
There's no way you could put a B300 in a 105.4 bass section because it was designed for two B200s (in parallel perhaps?), but with one certainly rolled off before the other for a single unit ranged i ...
  Topic: 105.2 clone with T33 tweeters?
audiolabtower

Replies: 20
Views: 1074

PostForum: DIY with KEF drive units   Posted: Tue Feb 27, 2018 7:09 pm   Subject: 105.2 clone with T33 tweeters?
Air core would be very much more resistance and probably diverge from the design if substituted just on values alone. Kef used iron dust core ferrites in the reference series which had lower distortio ...
  Topic: 105.2 clone with T33 tweeters?
audiolabtower

Replies: 20
Views: 1074

PostForum: DIY with KEF drive units   Posted: Mon Feb 26, 2018 9:45 pm   Subject: 105.2 clone with T33 tweeters?
Falcon do kits for the 105 crossovers replacing the alcaps. If they can supply the coil values too you would be well on the way. I replaced all my caps years ago but if you went for alcaps now they sh ...
  Topic: Tangent TM1 revival
audiolabtower

Replies: 2
Views: 3413

PostForum: Other speakers   Posted: Thu May 25, 2017 5:21 pm   Subject: Tangent TM1 revival
Personally I think that square reflex tube was purely a gimmick. It must lead to "chuffing" and non linear behaviour under high output - just read the research done recently on port design e ...
 
Page 1 of 38 Goto page 1, 2, 3 ... 36, 37, 38  Next
All times are GMT + 1 Hour
Jump to:  


Powered by phpBB © 2001, 2005 phpBB Group