Help identify these Seas tweeters - diyAudio
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 30th December 2012, 11:58 AM   #1
DeonC is offline DeonC  South Africa
diyAudio Member
 
DeonC's Avatar
 
Join Date: May 2002
Location: Kimberley, South-Africa
Default Help identify these Seas tweeters

Hi guys

I got these tweeters today. They look like they are 35mm domes. I want to use them as replacements for KEF T27 tweeters in a pair of KEF Concerto speakers. One of the T27s is blown, so I am replacing both with these. The pics are below.

Thanks guys,
Deon
Attached Images
File Type: jpg Kimberley-20121230-00440.jpg (148.0 KB, 166 views)
File Type: jpg Kimberley-20121230-00441.jpg (133.6 KB, 156 views)
File Type: jpg Kimberley-20121230-00443.jpg (128.1 KB, 155 views)
__________________
I don't suffer from insanity. I enjoy every minute of it.
Have a look at my favorite thread: Interesting YouTube video clips
  Reply With Quote
Old 30th December 2012, 12:07 PM   #2
diyAudio Member
 
StigErik's Avatar
 
Join Date: Feb 2008
Might be a SEAS H087 ?
__________________
dipoles dipoles dipoles dipoles dipoles dipoles dipoles dipoles and dipoles
  Reply With Quote
Old 30th December 2012, 12:07 PM   #3
system7 is online now system7  United Kingdom
diyAudio Member
 
system7's Avatar
 
Join Date: Aug 2008
Aren't those the old famous SEAS units that used to be fitted in Dynaco and B&O units in the seventies? They crossed over quite low (1.5kHz) on a single capacitor IIRC.

But I can't remember what they were called.
__________________
Good Night, and Good Luck. Best regards from Steve in Portsmouth, UK.
  Reply With Quote
Old 30th December 2012, 02:21 PM   #4
diyAudio Member
 
Join Date: Dec 2012
Location: Bath
They are H-087 8ohm units!
  Reply With Quote
Old 30th December 2012, 06:02 PM   #5
system7 is online now system7  United Kingdom
diyAudio Member
 
system7's Avatar
 
Join Date: Aug 2008
They (SEAS H087 or Dome H87) were used with a simple 1ohm series with 8uF capacitor and a 0.27mH shunt coil in the BeoVox 2702, which was a speaker I liked. Simple Cap and attenuator in the well documented Dynaco A25.

What is their DC resistance? No-one mentions it. For all that, a very different animal from the KEF T27.
Attached Images
File Type: jpg Beovox-2702.jpg (42.7 KB, 130 views)
File Type: jpg Dynaco A25.jpg (59.8 KB, 124 views)
__________________
Good Night, and Good Luck. Best regards from Steve in Portsmouth, UK.
  Reply With Quote
Old 30th December 2012, 08:35 PM   #6
DeonC is offline DeonC  South Africa
diyAudio Member
 
DeonC's Avatar
 
Join Date: May 2002
Location: Kimberley, South-Africa
Thanks, guys. Now I can Google the specs, and then fit them. It will only be a temporary fit, because I found out tonight from a friend of mine that it will be relatively cheap to have the T27 fixed. Problem is the guy that can fix them is a few hundred miles away, so I'll have to send it via post. The Seas will be a temporary stop-gap measure. I just want to be able to match the sensitivity via an l-pad. Then I'll have to figure out what to do with them next. Maybe a Dynaco clone? We'll see. Thank you very much again.

Deon

PS. Someone seems to have measured their DC resistances, because the one has 6-ohm written on the back, and the other 5,9-ohm.
__________________
I don't suffer from insanity. I enjoy every minute of it.
Have a look at my favorite thread: Interesting YouTube video clips

Last edited by DeonC; 30th December 2012 at 08:39 PM.
  Reply With Quote
Old 30th December 2012, 09:10 PM   #7
pdul is offline pdul  Denmark
diyAudio Member
 
Join Date: Jan 2009
Location: Copenhagen
I have just salvaged 2 of those from some old B&O speakers, but it says 3ohm on the units
  Reply With Quote
Old 31st December 2012, 12:02 AM   #8
diyAudio Member
 
Join Date: Dec 2012
Location: Bath
Madisound archive says 4.6 ohms coil resistance, which sounds about right...
  Reply With Quote
Old 31st December 2012, 12:10 AM   #9
diyAudio Member
 
Join Date: Dec 2012
Location: Bath
Of course, if I hadn't messed up my first post by saying they were 8 ohms, that would make more sense.
They are indeed 6ohm impedance, 4.6ohm coil resistance.
If you Google seas h-087 then click the 'images' tab, you should find a picture of the spec list fairly near the top- I did...
  Reply With Quote
Old 27th July 2013, 02:38 AM   #10
kiwi88 is offline kiwi88  United States
diyAudio Member
 
Join Date: Apr 2006
Location: boston
Blog Entries: 1
B+O were 4 ohms
  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
FS - Aurum Cantus G2 ribbon tweeters/Seas 5" excel midrange/Seas prestige 10" omegaslast Swap Meet 13 9th August 2012 09:31 PM
Can anyone identify these tweeters? Ronj Multi-Way 4 11th July 2011 12:16 AM
can someone identify these morel tweeters? terry j Multi-Way 2 27th May 2009 01:10 PM
Seas Millenium tweeters and Seas W22EX-001 sephiroth619 Swap Meet 2 5th March 2007 07:34 AM
New Seas Tweeters ANTHONY2181 Multi-Way 0 15th August 2002 05:47 PM


New To Site? Need Help?

All times are GMT. The time now is 10:01 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