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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 B300
Jake

Replies: 5
Views: 4755

PostForum: DIY with KEF drive units   Posted: Sat Apr 03, 2004 10:01 am   Subject: KEF B300
BTW...planning to make a Subwoofer for this unit

Does anyone know if qguy succeeded in making a subwoofer? Or, does anyone know a good design with a B300B?
  Topic: KEF 103.2 Parts
Jake

Replies: 7
Views: 5807

PostForum: KEF speakers   Posted: Mon Mar 22, 2004 5:27 pm   Subject: KEF 103.2 Parts
Unscrew drive unit and replace oriented differently. I suspect that the rubbing is due to sagging. Counteract sagging by replacing unit upside down...

I thought the cone itself was off axis. Trie ...
  Topic: KEF 103.2 Parts
Jake

Replies: 7
Views: 5807

PostForum: KEF speakers   Posted: Sun Mar 21, 2004 9:55 pm   Subject: KEF 103.2 Parts
B200 SP1075 exactly. (5ohm)
The coil seems to be off axis. Upper mid range distorts. Seems like a rubbing of the coils against the magnet. (if that makes sense)
If you touch the rubber suspention on ...
  Topic: RR 103.2 crossover?
Jake

Replies: 10
Views: 5933

PostForum: DIY with KEF drive units   Posted: Sun Mar 21, 2004 7:43 pm   Subject: RR 103.2 crossover?
I don't know if the crossovers can be interchanged between R103.2 and CS3, or if the notch filter is needed. Perhaps try it and see if you can hear a difference?

Regarding polyester capacitors, the ...
  Topic: Centre Speaker for 103.2?
Jake

Replies: 2
Views: 7717

PostForum: Home cinema   Posted: Sun Mar 21, 2004 7:11 pm   Subject: Centre Speaker for 103.2?
My first post Smile

I've got four 103.2's I would like to use in a surround setup. Suggestions on what centre speaker I should use for best performance?

At this moment I own a pair of Caprice II. ...
 
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