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

Driver for tractrix 110
Driver for tractrix 110
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 3rd February 2017, 12:20 PM   #1
permorten is offline permorten  Norway
diyAudio Member
 
Join Date: Jan 2009
Default Driver for tractrix 110

Hello !

I have for some tid now had a pair of tractrix 110 horns from horns pl.


I am looking for the optimal driver , started out around 3 years ago with Tad tm 1201 and was a bit disappointed , then changed to Fane studio 8 with at bigger dustcap , and mounted it very close to the hornstart - to improve the connection to the air , easyer than producing a phase plug , but adding approx 4 grams too the mmd.

Still looking for a better driver, and would like to continue with the big dust cap - i think.

Any good suggestions for the best driver for this horn ?,

i am currently looking at a fostex fullrange, reason is low mas- soft suspension- good bl factor and very low self induction - comments ?
  Reply With Quote
Old 3rd February 2017, 05:04 PM   #2
DrBoar is offline DrBoar  Sweden
diyAudio Member
 
DrBoar's Avatar
 
Join Date: Apr 2003
Location: Stockholm
The PA path
JBL Beyma and others sturdy cone and very good power handling.
The fullrange path
Fostex Lowther Philips 9710 etc having thin cones and 10 dB Rise above 2 kHz. That rise may compensate for dropping horn response.
  Reply With Quote
Old 3rd February 2017, 05:21 PM   #3
Gluca is offline Gluca  Italy
diyAudio Member
 
Gluca's Avatar
 
Join Date: Nov 2004
Location: Back to Italy
what's wrong with 1201? i have a pair and I am loving them (in the auto tech 110 tractrix)
  Reply With Quote
Old 4th February 2017, 07:27 AM   #4
permorten is offline permorten  Norway
diyAudio Member
 
Join Date: Jan 2009
Quote:
Originally Posted by Gluca View Post
what's wrong with 1201? i have a pair and I am loving them (in the auto tech 110 tractrix)
General low definition , i tried to minimize the compression chamber ,that helped a lot, removing the series inductor also helped, but had a feeling a lighter cone ( the tad is 50 grams) would be better, maybe a phase plug could do it.

Did listen to the BD design oris 150 horn with a Lowther driver , the impulse was very different - small dynamics was on a different level - easy and fast .

This is why i consider a lighter cone with high "vas", soft suspension - problem is that ekstra mass of the big dust cap i would like to mount adds relative much weight to mmd to the thin fullrange membrane.
  Reply With Quote
Old 4th February 2017, 07:51 AM   #5
permorten is offline permorten  Norway
diyAudio Member
 
Join Date: Jan 2009
Quote:
Originally Posted by DrBoar View Post
The PA path
JBL Beyma and others sturdy cone and very good power handling.
The fullrange path
Fostex Lowther Philips 9710 etc having thin cones and 10 dB Rise above 2 kHz. That rise may compensate for dropping horn response.
The target is 150 - 600 hz and maximum sound quality at normal listening levels.
  Reply With Quote
Old 4th February 2017, 09:09 AM   #6
kodomo is offline kodomo  Turkey
diyAudio Member
 
Join Date: Apr 2013
Location: Antalya
I am using supravox 285-2000 with my tractrix 110hz horn which were modified by hornfabrik of germany (no dustcap). I also have compression at mouth (see attachment).

With the right crossover it is very good. Put the driver into horn and adjust the backchamber to get the resonance right. When you finish, take an impedance measurement. Flatten the impedance at the crossover. I cut it around 100hz with 12db and 6db at about 500hz. It blends well both to my dual tad 1601b woofers down below and the tractrix 200 with radian 850's above.

I have a relatively large space and floor with acoustic treatment under thick carpet too. I also have bass traps in their first reflection points on the sidewalls. Get this channel right it is so very important to overall sound!
Attached Images
File Type: jpg Tractrix-100 - fi 174mm.jpg (183.2 KB, 195 views)
  Reply With Quote
Old 4th February 2017, 10:17 AM   #7
kodomo is offline kodomo  Turkey
diyAudio Member
 
Join Date: Apr 2013
Location: Antalya
A correction. I cut at 150hz with 6db and 500hz with 6db

The 100hz 12db filter is for the dual tad1601b woofers in 291lt br boxes
  Reply With Quote
Old 4th February 2017, 12:58 PM   #8
POOH is offline POOH  United States
diyAudio Member
 
POOH's Avatar
 
Join Date: Oct 2010
Location: Ohio
What is the entrance size of the horn? Tractrix horns even when on the floor and against the wall normally won't go below 2x the flare of the horn. Is it a full size horn?
__________________
I'm into real life dynamics and tone. Recipes for fully horn loaded horns systems are for me, direct radiator speakers bore me. Why have a fax when you can have vivid 3d technicolor? I love the sound of live instruments. This is my goal with my playback.
  Reply With Quote
Old 4th February 2017, 04:59 PM   #9
permorten is offline permorten  Norway
diyAudio Member
 
Join Date: Jan 2009
Quote:
Originally Posted by POOH View Post
What is the entrance size of the horn? Tractrix horns even when on the floor and against the wall normally won't go below 2x the flare of the horn. Is it a full size horn?
Yes it is full size, 115 mm dia start.
  Reply With Quote
Old 4th February 2017, 05:09 PM   #10
permorten is offline permorten  Norway
diyAudio Member
 
Join Date: Jan 2009
Quote:
Originally Posted by kodomo View Post
I am using supravox 285-2000 with my tractrix 110hz horn which were modified by hornfabrik of germany (no dustcap). I also have compression at mouth (see attachment).

With the right crossover it is very good. Put the driver into horn and adjust the backchamber to get the resonance right. When you finish, take an impedance measurement. Flatten the impedance at the crossover. I cut it around 100hz with 12db and 6db at about 500hz. It blends well both to my dual tad 1601b woofers down below and the tractrix 200 with radian 850's above.

I have a relatively large space and floor with acoustic treatment under thick carpet too. I also have bass traps in their first reflection points on the sidewalls. Get this channel right it is so very important to overall sound!
This is a driver of the right type, my "problem" is that my horn is with another start area, and it`s rear is covered with a big tube shaped cabinet - a lot of work to dismantle everything and start cut the rear

To bad you live so far away !
  Reply With Quote

Reply


Driver for tractrix 110Hide 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
Best 8" to 12" driver for 130hz tractrix horn 3GGG Multi-Way 279 7th September 2016 08:14 PM
Adding an offset mid-bass driver to a 160hz tractrix horn, Wow bqc Multi-Way 17 14th September 2014 11:20 AM
Le Cleach, Tractrix, wooden horns to 110 cm!! :D danVeyron Vendor's Bazaar 0 2nd April 2013 09:12 PM
Tractrix jphaggar Full Range 11 18th January 2009 02:16 AM


New To Site? Need Help?

All times are GMT. The time now is 06:47 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 14.29%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio
Wiki