Upgrade Jordan JX92S - diyAudio
Go Back   Home > Forums > Loudspeakers > Full Range

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 June 2005, 04:07 PM   #1
Triumph is offline Triumph  Netherlands
diyAudio Member
 
Triumph's Avatar
 
Join Date: Jun 2005
Location: Holland
Default Upgrade Jordan JX92S

Jordan JX92S Upgrade

This is my first time ever to write something on a forum, but what I experienced lately made me so enthusiast that I decided to share it with you.
I use a single Jordan JX92S as a centerspeaker in a home cinema setting. The reason for this choice was that I found that a single wide band driver is in comparison with the more usual d’Appolito configuration much more direct. Especially for voice the sound from a single wide band driver is special, as probably all of you have experience this already. As an amplifier I use a Linn Classic Movie Di, which I integrated in the centerspeaker. The speaker is double TML, double because of the forced ventilation of the Linn (at one side of the TML cool air comes in the other side warm air out). Built in the centerspeaker the Linn’s internal ventilator is silent. The speaker direct underneath my television.

But at every good side there is a bad side. With the Jordan I found the middle was too loud so I added a BSC. This was much better but still I found the sound a little too warm, round and wooly. There is a bit lack of high. Inspired from the Jordan/Aurum Cantus Gs2i mini monitor design I tested the Jordan with some tweeters. But there were some problems mostly space, diffuse sound, complex filter, cost etc. I also experimented with small piëzo car speakers, too sharp!

Until I read in the German DIY magazine Hobby Hifi from February 2005 a test from 11 tweeters. One of them was the EB Cantare Surface Slim. In the same month another German DIY magazine Klang Und Ton came with the design from “the little Wing” a Veravox 5s wide band with the Surface Slim. It looks like the Surface Slim could be the answer for my prayers. These magazines from my German neighbors are well documented and one of the best DIY magazines I ever saw.

The Surface Slim is a Italian made tiny magnetostat supertweeter wich you can use from 7.5KHz to 40KHz. It measures 36mm round and only 9 mm thick! 3.20 Ohm, 87dB. I made a small housing for it and placed it on the edge of the Jordan, as close as possible. The only thing I used is a 3,3 µF capacitor, that’s it, no 2e or 3e order Butterworth or complex crossovers. It probably kicks in around 10KHz. For experimental use I added two switches between the supertweeter and to shortcut the BSC.

The effect from this little miracle was enormous. The round and wooly sound was gone, but still there was a distinguished Jordan sound, certainly not sharp just right. This is the sound I was looking for and better matching with my other speakers the Diapason Ares. I have listened too lots of music DVD and movies the last few weeks and it was a great time. The Surface Slim has added something to the Jordans what I think they were missing. With voice, piano, saxophone it is the difference between the sound of a braking beer bottle and the sound of braking Swarovski crystal. There is more detail. With movies you can hear the dialogs better, you even can hear whereto the microphone is aimed or if it is a later on synchronized studio recording, voice over. Do not be afraid of sharp S, T and F sounds in vocals, there is nothing more than without the Surface Slim. Also the off middle listening position is much less critical.
Now you can upgrade your Jordans to SACD. It even makes the use of a BSC less necessary (also depends from its housing).
It can challenge any center d’Appolito speaker for directness. Have you noticed that a d’Appolito center sounds better standing vertical than horizontal? Now only on the bass you can loose, that you can improve with a sub (Jordan recommends the great JM acoustic).

You can choose any other supertweeter but the funny part of it is that the Surface Slim is so small and so easy to add, connect and cheap you can add it to almost any existing design “The Wall” “Tidy TL” “Essence” etc.
If you don’t trust me, try it. They are so small you can stick it with some tape on the edge of the Jordan! The cost only €55,-. you can order them at http://www.lautsprechershop.de/

On the website of Ted Jordan at FAQ there is something about the adding of a supertweeter is not recommended because for the Jordans exceptional detail and fase coherency . I must disagree on this. I noticed no reduce of detail, on the contrary, and no problems with fase coherency.

I have no measuring equipment to prove all of this, just my ears. So probably you can improve it even better with a more tuned crossover. I leave that to the forum.


Ps.
There is almost nothing to find on the internet over the EB Acoustic technology Cantare Surface Slim. Even on the EB acoustic website there is nothing http://www. ebacoustic.it.

Try http://www.lautsprechershop.de/ Iris Strassacker K+T then on the Klang und Ton workshop you can find the “Little Wing” with the Surface slim.
On the same website go from the homepage to Peter Strassacker - Zeitschriften Hobby HiFi- Inhalt der hefte Hoby - HiFi 2/2005- test 11 hochtöner There you can order the Surface Slim.
__________________
Triumph
  Reply With Quote
Old 5th June 2005, 04:10 PM   #2
Speakerholic
diyAudio Moderator
 
Cal Weldon's Avatar
 
Join Date: Jan 2004
Location: Near Vancouver
Hi Triumph, welcome to the forum. I think you'll find the people here very informative.

Boy, for someone who has never written in to a forum, you sure made up for lost time.

Do you have a question in all that?

Cal
__________________
Next stop: Margaritaville
Some of Cal's stuff | Cal Weldon Consulting
  Reply With Quote
Old 5th June 2005, 04:46 PM   #3
diyAudio Member
 
Join Date: Jun 2004
Location: 75 kms south- west of Frankfurt / Main
Hi.

Please be aware, that both magazines are not really helpfull when it comes to erratas and updates.
Both magazines are having problems on that part.
Often they publish wrong crossover schematics, wrong driver data or wrong measurement graphs...

But some of their constructions are good, some of them...

It is very helpfull to visit their websites often to get erratas before they are published 2 months later.

But I'm not trying to warn you in any way, it's just meant as "goodwill tip"...

And welcome to the forum.

Greetings, B.
__________________
JayBeeOnline.de
  Reply With Quote
Old 5th June 2005, 04:59 PM   #4
soongsc is offline soongsc  Taiwan
diyAudio Member
 
soongsc's Avatar
 
Join Date: Mar 2005
Location: Taiwan
Triumph,

I would be willing to send you a compensation circuit design that I designed if you are interested in trying it out and providing me with your comments.

This would be just for the JX92S alone. It is designed to balance the frequency spectrum.
__________________
Hear the real thing!
  Reply With Quote
Old 5th June 2005, 05:37 PM   #5
diyAudio Member
 
jan.didden's Avatar
 
Join Date: May 2002
Location: Great City of Turnhout, Belgium
Blog Entries: 7
Triumph,

Just to show my ignorance, what's a BSC??

Jan Didden
__________________
If you don't change your beliefs, your life will be like this forever. Is that good news? - W. S. Maugham
Check out Linear Audio!
  Reply With Quote
Old 5th June 2005, 05:43 PM   #6
diyAudio Member
 
Scottmoose's Avatar
 
Join Date: Mar 2005
Location: UK
BSC = Baffle Step Correction. It's a compensation circuit which is usually designed to reduce response in a specific part of the audio band. Typically an inductor and resistor in parallel in the hot lead, with a zobel network across + & -, though some leave out the zobel.
__________________
Community site www.frugal-horn.com Commercial site www.wodendesign.com
  Reply With Quote
Old 5th June 2005, 05:59 PM   #7
diyAudio Member
 
jan.didden's Avatar
 
Join Date: May 2002
Location: Great City of Turnhout, Belgium
Blog Entries: 7
Quote:
Originally posted by Scottmoose
BSC = Baffle Step Correction. It's a compensation circuit which is usually designed to reduce response in a specific part of the audio band. Typically an inductor and resistor in parallel in the hot lead, with a zobel network across + & -, though some leave out the zobel.

Ahh thanks, yes I know about BSC, just didn't connect it with BSC.

Jan Didden
__________________
If you don't change your beliefs, your life will be like this forever. Is that good news? - W. S. Maugham
Check out Linear Audio!
  Reply With Quote
Old 7th June 2005, 06:55 AM   #8
Triumph is offline Triumph  Netherlands
diyAudio Member
 
Triumph's Avatar
 
Join Date: Jun 2005
Location: Holland
Thanks forum for your reply and welcome.

Cal, at first I did not have a question but after forum comments I have.
Benny, I am warned now. It sounds great already it can only go better.
Soongsc, Yes I am interested but your circuit must be able to match with the surface slim because I am not wanted to miss it any more.

So therefore I enclosed some information about my current system:

The BSC
-0,68 mH
-22 µF
-3,3 Ů
No notchfilter is used.

The Surface Slim is connected with only a 3,3 µF cap.

Forum suggestions for improvement? Famous saying in Holland: Let’s make things better.

I also attached factory information about recommended crossover and values for the Surface Slim.

T.
Attached Images
File Type: jpg ss1.jpg (50.3 KB, 1607 views)
__________________
Triumph
  Reply With Quote
Old 7th June 2005, 06:59 AM   #9
Triumph is offline Triumph  Netherlands
diyAudio Member
 
Triumph's Avatar
 
Join Date: Jun 2005
Location: Holland
Second attachment.
Attached Images
File Type: jpg ss2.jpg (56.6 KB, 1694 views)
__________________
Triumph
  Reply With Quote
Old 7th June 2005, 07:04 AM   #10
soongsc is offline soongsc  Taiwan
diyAudio Member
 
soongsc's Avatar
 
Join Date: Mar 2005
Location: Taiwan
Quote:
Originally posted by Triumph
Thanks forum for your reply and welcome.

Soongsc, Yes I am interested but your circuit must be able to match with the surface slim because I am not wanted to miss it any more.

So therefore I enclosed some information about my current system:

The BSC
-0,68 mH
-22 µF
-3,3 ?
No notchfilter is used.

The Surface Slim is connected with only a 3,3 µF cap.

Forum suggestions for improvement? Famous saying in Holland: Let’s make things better.

I also attached factory information about recommended crossover and values for the Surface Slim.

T.
I couldn't find the Surface Slim product at the site you referenced.

I think lots of people compensate the JX92S in ways that actually cut off the hi end and not really using the potential of the JX92S. But since you are already happy with the Surface Slim, you do not need my compensation circuit.
__________________
Hear the real thing!
  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
Looking for Jordan JX92S oshifis Swap Meet 5 28th December 2013 12:26 AM
FS Jordan JX92S JohnnyBoy Swap Meet 0 17th October 2006 10:58 PM
Jordan JX92S Gaffer74 Full Range 11 31st May 2006 09:42 PM
jordan jx92s TL box pstephenson Full Range 3 26th October 2004 12:56 PM
Searching for Jordan jx92s pamaz Swap Meet 1 7th September 2004 08:47 PM


New To Site? Need Help?

All times are GMT. The time now is 12:52 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