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

Hornresp
Hornresp
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 17th September 2017, 03:45 PM   #7871
BP1Fanatic is offline BP1Fanatic  United States
diyAudio Member
 
BP1Fanatic's Avatar
 
Join Date: Jan 2009
Location: Columbus, Ohio
Quote:
Originally Posted by Orion33 View Post
Yes, I want to try. But what?
These are examples of exponential subwoofer horns. If you are not building something similar, then you need to be modeling a parabolic enclosure.
Attached Images
File Type: jpg 2017-09-17-11-39-16-.jpg (6.7 KB, 131 views)
File Type: jpg Mid_Bass_FV_01.jpg (598.4 KB, 131 views)
File Type: jpg systeme.jpg (371.1 KB, 128 views)
  Reply With Quote
Old 18th September 2017, 06:05 AM   #7872
David McBean is offline David McBean  Australia
diyAudio Member
 
Join Date: Jun 2007
Quote:
Originally Posted by BP1Fanatic View Post
These are examples of exponential subwoofer horns.
The second example appears to be a tractrix or spherical wave horn - the mouth flare tangent angle is close to 90 degrees.

Quote:
Originally Posted by BP1Fanatic View Post
If you are not building something similar, then you need to be modeling a parabolic enclosure.
Just to clarify, the above statement only applies to horns with two parallel sides - in which case the system needs to be modelled using multiple parabolic segments to approximate the desired overall exponential profile (see attachment). A single-segment parabolic horn would not be a good design choice for a bass system :-).
Attached Images
File Type: png Attach_1.png (47.9 KB, 116 views)
__________________
www.hornresp.net
  Reply With Quote
Old 18th September 2017, 02:35 PM   #7873
BP1Fanatic is offline BP1Fanatic  United States
diyAudio Member
 
BP1Fanatic's Avatar
 
Join Date: Jan 2009
Location: Columbus, Ohio
Quote:
Originally Posted by David McBean View Post
The second example appears to be a tractrix or spherical wave horn - the mouth flare tangent angle is close to 90 degrees.
The pic was to show that all sides expand in an exponential horn whether round or square. Here is a better example for a round exponential horn.
Attached Images
File Type: png Bullhorn-icon.png (84.2 KB, 100 views)

Last edited by BP1Fanatic; 18th September 2017 at 02:40 PM.
  Reply With Quote
Old 18th September 2017, 03:45 PM   #7874
mwmkravchenko is offline mwmkravchenko  Canada
Mark Kravchenko
diyAudio Member
 
mwmkravchenko's Avatar
 
Join Date: Jan 2002
Location: Perth Canada
Hornresp
Quote:
Originally Posted by BP1Fanatic View Post
The pic was to show that all sides expand in an exponential horn whether round or square. Here is a better example for a round exponential horn.

Kinda looks like a conical horn there buddy
__________________
Mark
www.kravchenko-audio.com
  Reply With Quote
Old 19th September 2017, 06:50 AM   #7875
David McBean is offline David McBean  Australia
diyAudio Member
 
Join Date: Jun 2007
Quote:
Originally Posted by mwmkravchenko View Post
Kinda looks like a conical horn
More like a conical megaphone - complete with handle. A bit small to be used as a subwoofer, though :-).
Attached Images
File Type: jpg Attach_1.jpg (73.9 KB, 16 views)
__________________
www.hornresp.net
  Reply With Quote
Old 19th September 2017, 02:14 PM   #7876
BP1Fanatic is offline BP1Fanatic  United States
diyAudio Member
 
BP1Fanatic's Avatar
 
Join Date: Jan 2009
Location: Columbus, Ohio
My mistake!
  Reply With Quote
Old 21st September 2017, 12:23 PM   #7877
Orion33 is offline Orion33  Russian Federation
diyAudio Member
 
Join Date: Jun 2011
A little offtopic.
Can anybody provide files to calculate the horn from here: Quarter Wavelength Loudspeaker Design ?
  Reply With Quote
Old 21st September 2017, 02:55 PM   #7878
mwmkravchenko is offline mwmkravchenko  Canada
Mark Kravchenko
diyAudio Member
 
mwmkravchenko's Avatar
 
Join Date: Jan 2002
Location: Perth Canada
Hornresp
Quote:
Originally Posted by Orion33 View Post
A little offtopic.
Can anybody provide files to calculate the horn from here: Quarter Wavelength Loudspeaker Design ?
The math between the two programs either Martin's work or David's work should be very similar if not the same.

At least for the horn design and specification side of things.

Are you looking for the mathematical derivation of a particular horn type?
__________________
Mark
www.kravchenko-audio.com
  Reply With Quote

Reply


HornrespHide 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
Hornresp Class FlipC Subwoofers 11 4th June 2016 06:33 AM
Some questions about hornresp brsanko Full Range 4 18th October 2008 09:36 PM
Hornresp help / JX150 316a Multi-Way 0 11th February 2004 03:56 PM


New To Site? Need Help?

All times are GMT. The time now is 04:30 PM.


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
Wiki