Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Multi-Way Conventional loudspeakers with crossovers

Thiel-small Testing Jig
Thiel-small Testing Jig
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
Thread Tools Search this Thread
Old 6th February 2003, 10:28 AM   #1
palesha is offline palesha  India
diyAudio Member
Join Date: Nov 2001
Location: Pune India
Default Thiel-small Testing Jig

Herewith attached 3 jig pictures. I have used first two of them. I find first to be better and giving consistence results. But there are many views about the fixture for thielsmall testing. I want view of the other friends of this group to share the experience.
Further Loudspeaker cookbook says that we have to use lowest signal level for testing thielsmall. Opinion about the signal level is also welcome.
  Reply With Quote
Old 6th February 2003, 11:18 AM   #2
Doug is offline Doug  Canada
diyAudio Member
Doug's Avatar
Join Date: Dec 2002
Location: Guelph, Ontario, Canada
Default Thiele/Small testing

The jpg's that you attached are not attached LOL

Thiele/Small in itself is a "small signal analysis", which means everything is calculated at very low power.

When you use Thiele/Small parameters in most enclosure modelling programs what you get is an indication of the response you will get for any given box volume, based on low power applied to the driver.

In the real world, a speaker is a very non-linear device, and as you increase the power level to the driver the voice coil heats up etc. and the alignment of the enclosure changes. Usually the "Q" of the system will increase.

Some of the more expensive speaker modelling programs will allow you to model and predict what will happen as you increase the power level. One of these programs is called LEAP from LinearX Systems in the USA.


Hope this helps a little; DOUG
  Reply With Quote
Old 6th February 2003, 04:06 PM   #3
palesha is offline palesha  India
diyAudio Member
Join Date: Nov 2001
Location: Pune India
sorry friends,
Here is the image.
Attached Images
File Type: jpg thielsmall jig.jpg (41.1 KB, 171 views)
  Reply With Quote


Thiel-small Testing JigHide 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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
which is better method for Thiel small parameter testing? jaya000 Multi-Way 15 13th May 2008 01:17 PM
thiel small testing software? mhtplsh Multi-Way 3 26th December 2007 06:02 PM
Thiel small testing mhtplsh Subwoofers 16 25th December 2007 06:46 PM
Testing Thiel Small parameters. AndrewT Multi-Way 2 13th May 2005 07:05 PM
thiel small testing palesha Multi-Way 37 22nd November 2002 06:00 AM

New To Site? Need Help?

All times are GMT. The time now is 01:07 AM.

Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.79%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright ©1999-2017 diyAudio