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 9 matches
SpeakerTalk Forum Index
Author Message
  Topic: KEF 107/2
Dyolf

Replies: 16
Views: 8460

PostForum: KEF speakers   Posted: Mon Mar 30, 2015 8:13 pm   Subject: KEF 107/2
I have added info from the Kube manual. The kube goes between preamp and poweramp(s) Preferably 2 identical amps, but if you use two different, I would use the "bigger" on the bass section. ...
  Topic: Specs on T33 - SP1265
Dyolf

Replies: 4
Views: 2198

PostForum: KEF speakers   Posted: Thu Jan 22, 2015 5:07 pm   Subject: Re: Specs on T33 - SP1265
........ but all KEF soft dome tweeters had a resonance of about 1 kHz.

The SP1265 is the later aluminium dome tweeter used in 107/2. Is an FS in the 1000Hz region still a good estimate?
Steen
  Topic: Specs on T33 - SP1265
Dyolf

Replies: 4
Views: 2198

PostForum: KEF speakers   Posted: Wed Jan 21, 2015 11:55 pm   Subject: Specs on T33 - SP1265
Once again I'm trusting the knowledgeable members in this forum to help with info!
I have found nothing on the web regarding this tweeter, but would be happy just to get the main numbers:
The free a ...
  Topic: Repair or replacement - B250
Dyolf

Replies: 11
Views: 4097

PostForum: KEF speakers   Posted: Sun Jan 11, 2015 12:55 pm   Subject: Repair or replacement - B250
#2 update
Speakergure is right of course. I have made a reviced "clamp" and will use the driver as it is without the glue. Waiting for the foam repair kit, I have now installed "new&q ...
  Topic: Trying to understand the logic of the 107 design
Dyolf

Replies: 9
Views: 4758

PostForum: KEF speakers   Posted: Sun Jan 04, 2015 3:28 pm   Subject: Re: Trying to understand the logic of the 107 design
They are mounted out of phase mechanically and connected out of phase electrically. Thus two phase reversals resulting in in-phase acoustically and force cancelling mechanically to the box.

I think ...
  Topic: Repair or replacement - B250
Dyolf

Replies: 11
Views: 4097

PostForum: KEF speakers   Posted: Sat Jan 03, 2015 7:56 pm   Subject: Repair or replacement - B250
An update:
I think the coil is actually OK. I have made a contraption that allows me to adjust the rear polepiece, and by doing so the basket/coil is now alligned and moving freely. What has obviousl ...
  Topic: Repair or replacement - B250
Dyolf

Replies: 11
Views: 4097

PostForum: KEF speakers   Posted: Wed Dec 10, 2014 11:23 pm   Subject: Repair or replacement - B250
Speakerguru, why is there so little, or none actually, info on the net regarding the SP1215 driver? To find a replacement unit, it would help a lot if one knew what to look for. Another thing. If I op ...
  Topic: Repair or replacement - B250
Dyolf

Replies: 11
Views: 4097

PostForum: KEF speakers   Posted: Wed Dec 10, 2014 10:35 pm   Subject: Repair or replacement - B250
Thanks for replying so fast. I have read, I think, most of the forum posts on the net regarding the R107 and R107/2, and almost every one summs up that the driver/crossover design in theese speakers, ...
  Topic: Repair or replacement - B250
Dyolf

Replies: 11
Views: 4097

PostForum: KEF speakers   Posted: Wed Dec 10, 2014 9:57 pm   Subject: Repair or replacement - B250
Hello, my first post here.
Sadly one of my 107.2 woofers (SP1215) have gone frozen. Voice coil stuck on one side of gap, and bottom plate or magnet seriously askew. In a shortlived thread over on Diy ...
 
Page 1 of 1
All times are GMT + 1 Hour
Jump to:  


Powered by phpBB © 2001, 2005 phpBB Group