Does anyone know these ISOPHON horn drivers?? - 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 31st January 2004, 09:22 PM   #1
diyAudio Member
 
Join Date: Jun 2003
Location: Wroclaw
Default Does anyone know these ISOPHON horn drivers??

Hi,
I just got four ISOPHON horn drivers.
Two of them are tweeters named PANORAMA 2000 , 8ohm 800-15000Hz.They have extremely big ferrite (or neodymium) magnet and short aluminium horn (driver no. 2 or no. 3 from the picture).
The other two are midrange drivers with bigger (probably some kind of plastic ) horns.These have alnico magnets and no name on them (accept Isophon).These are number 1 from the picture.
Does anyone know this drivers??? are they any good.Sound quite good I think.Both of the midranges are like new ,perfect condition,and one of the tweeters is rabbing a bit at high levels (might be some dust in the voice coil).
With the drivers i got these funny ,look like heatsinks thing (also on the picture).It makes tweeters less directional when attached.
If you know anything about those please let me know.

Bartek
Attached Images
File Type: jpg isophon_ls.jpg (41.2 KB, 169 views)
  Reply With Quote
Old 31st January 2004, 09:42 PM   #2
diyAudio Member
 
Join Date: Jan 2004
Location: Germany / Bavaria / Augsburg
Where did you find that picture? Museum theft?

I experimented with those speakers in the end 70s to early 80s.

They are no good. Just crap.
Sound terrible. Just forget.

Maybe good as a siren.
__________________
Best Regards,
Cybergent
  Reply With Quote
Old 1st February 2004, 11:26 AM   #3
sreten is offline sreten  United Kingdom
diyAudio Member
 
Join Date: Nov 2003
Location: Brighton UK
The "heatsink" is an acoustic lens.

they appear to be PA drivers requiring dedicated
complicated crossover design / equalisation.

Not very good for general purpose or simple crossovers.

sreten.
  Reply With Quote
Old 1st February 2004, 10:44 PM   #4
diyAudio Member
 
Join Date: Jan 2004
Location: Germany / Bavaria / Augsburg
The acustic lens sounds like a metal bell.
The tweeter horns are no good for PA, because they burn pretty fast.

And these horns are not linear at all. They have a squeeking sound.
__________________
Best Regards,
Cybergent
  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
Anyone got spec's on the '70's Isophon drivers. Shoog Full Range 9 1st May 2009 12:24 AM
T/S parameters for horn drivers buggsson Multi-Way 7 25th March 2008 08:53 AM
Dual Drivers and Horn Humanjava Full Range 1 16th March 2007 02:38 PM
FS: horn subs, drivers, 'regular' subwoofer drivers John Sheerin Swap Meet 0 1st August 2004 11:33 PM
Data of Isophon DKT11 "Exponential-Hochtonstraler", treble horn peranders Multi-Way 3 10th December 2002 08:13 AM


New To Site? Need Help?

All times are GMT. The time now is 01:16 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