Go Back   Home > Forums > Loudspeakers > Multi-Way

Multi-Way Conventional loudspeakers with crossovers

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 5th July 2004, 05:35 AM   #1
dvdwmth is offline dvdwmth  Canada
diyAudio Member
 
Join Date: Apr 2004
Location: Toronto
Default replacement tweeter for Kef model 104

Im helping someone find a replacement tweeter for a Kef Model 104 that he wants to fix and sell. I assume it will be next to impossible to find an original driver so a suitable substitute will have to do. I haven't been able to find any useful info on the web. Hopefull someone here will have some thoughts on an appropriate replacement.

thanks

btw, this is the model 104 from the 70s, not the reference 104/2
  Reply With Quote
Old 5th July 2004, 11:34 AM   #2
sreten is online now sreten  United Kingdom
diyAudio Member
 
Join Date: Nov 2003
Location: Brighton UK
The tweeter is the KEF T27 I believe, has no modern equivalent.

To match the cutout diameter (nearly) you'll need a 1" tweeter,
standard size is 104mm, a little less than the T27's 108mm.

Mylar 1" are no longer made, I'd suggest a metal dome.

http://www.madisound.com/seas/H1214.pdf

Is on sale at Madisound, and looks about right, with an L-pad.
Use some black beading around the 2mm that will be left
around the tweeter. Also fit an 8 ohm L-pad to the rear.
Make sure tweeter phasing is correct.

http://www.partsexpress.com/pe/showd...number=260-250

sreten.
  Reply With Quote
Old 5th July 2004, 02:14 PM   #3
Colin is offline Colin  United Kingdom
diyAudio Member
 
Join Date: Aug 2003
You could also try contacting Falcon Acoustics in the UK. Used to be good at suggesting replacement drivers, especially for classic designs like the various KEFs.

Colin



Falcon
  Reply With Quote
Old 5th July 2004, 04:06 PM   #4
sreten is online now sreten  United Kingdom
diyAudio Member
 
Join Date: Nov 2003
Location: Brighton UK
http://cgi.ebay.co.uk/ws/eBayISAPI.d...sPageName=WDVW

They are not impossible to find, but are much sought after, so not cheap.

So not really the way you want go for resale, recouping costs
will be extremely difficult. IMO a neat job with the Seas is the
way to go, also IMO the Seas will be an upgrade over the T27.

IMO Falcon Acoustics do not stock a suitable unit, and will not
be able to do any better than my suggestion for a replacement.

Having the original tweeter fitted is more of an issue with the
KEF 104aB crossover, which is precisely tuned to the T27, which
implies the 104 crossover isn't, so substitution is less of an issue.

Also note my suggestion of the Seas is not a result of sticking
a pin in a donkey, its a carefully considered recommendation,
(but you must use the L-pad or equivalent resistors).

sreten.
  Reply With Quote
Old 5th July 2004, 04:41 PM   #5
sreten is online now sreten  United Kingdom
diyAudio Member
 
Join Date: Nov 2003
Location: Brighton UK
If I haven't made it clear before both T27's
need replacing, even if one is still working.

You need 2 tweeters and 2 L-pads.

For resale, selling the T27 that still works (if this is
the case) seperately makes the most sense to me.

sreten
  Reply With Quote
Old 5th July 2004, 05:02 PM   #6
diyAudio Member
 
Join Date: Jul 2002
Location: HERTFORSHIRE UK
Send a message via Yahoo to ANTHONY2181
I've got a spare T27 SP 1032 if your interested.

Cheers

Anthony Kirby
  Reply With Quote
Old 5th July 2004, 07:18 PM   #7
diyAudio Member
 
Join Date: Mar 2002
Location: Canada
An other one ! good for a pair...

http://www.diyaudio.com/forums/showt...894#post236894
__________________
Praudio
  Reply With Quote
Old 5th July 2004, 07:28 PM   #8
dvdwmth is offline dvdwmth  Canada
diyAudio Member
 
Join Date: Apr 2004
Location: Toronto
Thanks all. Sreten, thanks for your particularly helpful info.

Praudio and ANTHONY2181, I have to talk to the guy that actually owns these and see what he wants to do. I suspect he will want to get these so I'll let you know ASAP. I didn't think this would be so easy
  Reply With Quote
Old 5th July 2004, 07:50 PM   #9
sreten is online now sreten  United Kingdom
diyAudio Member
 
Join Date: Nov 2003
Location: Brighton UK
For you Canadians the Praudio option is obviously the
one to go for if only one tweeter has met its demise.

End of story .......

I never considered that the post was considering replacing
only one tweeter with a substitute, this is not a good idea.

sreten.
  Reply With Quote
Old 6th July 2004, 03:14 AM   #10
dvdwmth is offline dvdwmth  Canada
diyAudio Member
 
Join Date: Apr 2004
Location: Toronto
no, your first take was correct. Both tweeters need replacing. I dont know what it would cost to get anthony2181's tweeter shipped from the uk but if it is not incredibly outrageous than thats a pair. If its too pricey at least now I know they are not impossible to find.
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Proac tweeter - current model manufacturer Al.M Multi-Way 1 1st March 2009 01:41 PM
Looking for info onan unknown Tweeter model (M&K brand)? JBCon Multi-Way 0 8th December 2008 06:08 PM
Tivoli Model 1 FM aerial connector replacement ? jives11 Parts 1 3rd March 2007 04:40 PM
spice model parameters or better program replacement mars1 Everything Else 0 10th February 2004 04:28 PM
Replacing tweeter with one from a different model? (Infinity Kappa -> Interlude) krisztoforo Multi-Way 2 25th January 2004 03:18 AM


New To Site? Need Help?

All times are GMT. The time now is 07:18 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2