ML-TL or ML-TQWT with very low Qt driver - 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 25th September 2006, 09:01 AM   #1
Henkjan is offline Henkjan  Netherlands
diyAudio Member
 
Henkjan's Avatar
 
Join Date: Jan 2006
Location: Berkel en Rodenrijs
Default ML-TL or ML-TQWT with very low Qt driver

I think of making a TL of some sort for a driver with a very low Qt (0.14), what type of design suits best for this?
Attached Images
File Type: jpg thiel_ts.jpg (26.7 KB, 397 views)
  Reply With Quote
Old 25th September 2006, 11:29 AM   #2
diyAudio Member
 
Scottmoose's Avatar
 
Join Date: Mar 2005
Location: UK
A horn, unless you want to run active Eq, or you don't mind a hefty set of values in the correction circuit. Try a BIB with the dimensions I suggested for the FE166E. Jeff's site has these up: www.zillaspeak.com/bib.asp Look in the Fostex category.
__________________
Community site www.frugal-horn.com Commercial site www.wodendesign.com
  Reply With Quote
Old 25th September 2006, 11:53 AM   #3
Henkjan is offline Henkjan  Netherlands
diyAudio Member
 
Henkjan's Avatar
 
Join Date: Jan 2006
Location: Berkel en Rodenrijs
mmm, so either big or big....
  Reply With Quote
Old 25th September 2006, 02:19 PM   #4
diyAudio Member
 
Scottmoose's Avatar
 
Join Date: Mar 2005
Location: UK
Bigger is better.

Unfortunately, as GM so often points out, no free lunches in audio. I can do a set of dimensions for a resonant MLTL or ML TQWT for you, but you'll need a wad of series resistance or active Eq to bring it into line or the response is going to rocket (and that's not including BSC). Whether that's important to you or not will depend on the rest of your system, and your room -in a large room, dynamics will start to suffer a bit. I love ML TQWTs and MLTLs -I've build loads of the things, some of which are among the best speakers I've heard. But you're always better off, IMO, choose the right sort of enclosure for the job, rather than to force things. As a general rule, I try to set myself a 0.20 Qt limit these days -lower than that, and though you can still use it, it will usually be better off in a horn.
__________________
Community site www.frugal-horn.com Commercial site www.wodendesign.com
  Reply With Quote
Old 25th September 2006, 11:15 PM   #5
diyAudio Member
 
tomtt's Avatar
 
Join Date: Aug 2002
Location: kansas city mo, and on occasion, around the world ...
Blog Entries: 15
might note that, the lower the qt, the lower the distortion
```````````````````````````````````````````````

eye candy-

http://img61.imageshack.us/my.php?image=altecva2.jpg
  Reply With Quote
Old 26th September 2006, 09:15 PM   #6
Henkjan is offline Henkjan  Netherlands
diyAudio Member
 
Henkjan's Avatar
 
Join Date: Jan 2006
Location: Berkel en Rodenrijs
Quote:
Originally posted by Scottmoose
Bigger is better.

Unfortunately, as GM so often points out, no free lunches in audio......
not looking for that, just a decent performance in a neat floorstander with good WAF; I'll fire up a sub for decent bass.

as monitor this driver performs well in a 8 liter BR, so suppose I give it 20liters in a floorstanding TL? f3=50? it's only a 7", no miracles expeced nor required.
  Reply With Quote
Old 29th September 2006, 02:29 PM   #7
badman is offline badman  United States
diyAudio Member
 
badman's Avatar
 
Join Date: Sep 2003
Location: Sunny Tustin, SoCal
Quote:
Originally posted by tomtt
might note that, the lower the qt, the lower the distortion
```````````````````````````````````````````````

eye candy-

http://img61.imageshack.us/my.php?image=altecva2.jpg

Nice eye candy

Is it proven that lower Qt is lower distortion? Or just a guideline correlated to effective motor coupling?

Don't get me wrong, I tend to prefer low-q drivers, but can you quantify your statement?
__________________
I write for www.enjoythemusic.com in the DIY section. You may find yourself getting a preview of a project in-progress. Be warned!
  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
ml tqwt with unknown driver stevodude Full Range 20 13th August 2008 05:34 AM
Vas and TQWT mahleriana Full Range 12 28th November 2007 12:38 PM
El W-3 871S is a god driver in TQWT? Jaime Full Range 1 19th May 2006 04:33 PM
Building Martin King's ML TQWT... advice on driver subsitutions santiu Full Range 5 23rd September 2005 05:13 PM
What is the Q of a (ML)-TQWT, (ML)-TML, etc Elam Full Range 0 18th June 2005 08:56 AM


New To Site? Need Help?

All times are GMT. The time now is 09:52 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