diy 20 Hz tapped horn plans - diyAudio
Go Back   Home > Forums > Loudspeakers > Subwoofers

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 15th September 2009, 03:28 AM   #1
diyAudio Member
 
Join Date: Jun 2009
Question diy 20 Hz tapped horn plans

Any good diy 20 Hz tapped horn plans that are relatively easy to build like William Cowan's 18 Hz tapped horn?
  Reply With Quote
Old 15th September 2009, 06:59 AM   #2
FlipC is offline FlipC  United States
diyAudio Member
 
Join Date: Aug 2008
Didnt you just answer your own question?

There are quite a few if your looking for low SPL. IE non PA usage.
What SPL do you want to hit?
  Reply With Quote
Old 15th September 2009, 03:51 PM   #3
diyAudio Member
 
Join Date: Jun 2009
yeah, william didn't post plans for the 18 Hz, only the 30 Hz... my SPL requirements are ~125+... I am going to build atleast 2 THs ( one in the front and one in the back)... possible?

Last edited by slisgrinder; 15th September 2009 at 03:54 PM.
  Reply With Quote
Old 15th September 2009, 04:05 PM   #4
GM is offline GM  United States
diyAudio Member
 
GM's Avatar
 
Join Date: Jun 2003
Location: Chamblee, Ga.
There's a number of drivers that either singly or in multiples will cover your BW/SPL goals, so what's driver and space 'budget'?

GM
__________________
Loud is Beautiful if it's Clean! As always though, the usual disclaimers apply to this post's contents.
  Reply With Quote
Old 15th September 2009, 04:06 PM   #5
jbell is offline jbell  United States
diyAudio Member
 
Join Date: Apr 2003
Location: .
You'll exceed xmax above 30volts, but this gets you very close (within a db) of 125 in an under 300liter cabinet, in a corner from the lowly 55-2421.
Attached Images
File Type: jpg 20hz55-2421.JPG (56.5 KB, 1770 views)
  Reply With Quote
Old 15th September 2009, 04:41 PM   #6
diyAudio Member
 
Join Date: Jun 2009
Thanks for the horn resp parameters but I am a complete n00b at horn resp and when I select tapped horn from the driver arrangement selection I don't get the same screen as you do...i have attached an image...if anybody else has plans please feel free to share...
Attached Images
File Type: jpg Horn Resp TH 1.jpg (96.5 KB, 1636 views)
  Reply With Quote
Old 15th September 2009, 05:16 PM   #7
diyAudio Member
 
Join Date: Jun 2009
wait, I got the parameters correct and everything is correct, but the parameter "TH" which is in red only shows a value of 1...what am I doing wrong?
  Reply With Quote
Old 15th September 2009, 05:19 PM   #8
diyAudio Member
 
Join Date: Jun 2009
In the attached image, the TH parameter only shows a value of 1...please bare with me since I have never used horn resp before...
Attached Images
File Type: jpg Horn Resp TH 1.jpg (90.3 KB, 1572 views)
  Reply With Quote
Old 15th September 2009, 05:46 PM   #9
FlipC is offline FlipC  United States
diyAudio Member
 
Join Date: Aug 2008
Under Tools drop down.
Select Driver arrangement. Input 2 in parallel. Less you want to wire the cab in series. Then put the 2 there.

Post up the amount of space you want these
cabinets to take up and someone will whip you up something. I am sure.
  Reply With Quote
Old 15th September 2009, 06:13 PM   #10
diyAudio Member
 
Join Date: Jun 2009
Thankx...If I wanted to design my own tapped horn, what do I need to take into consideration? I was reading up on Tom Danley's white paper on tapped horns and found that the length of the horn needs to be a quarter wavelength of the low cut off frequency (so if I wanted to a 20Hz horn, then the length would have to be 169.5 inches) so what about the mouth and the throat of the horn? how do you calculate that in reference to the length of the horn?
  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
Help with a tapped horn. mike james 533 Subwoofers 33 4th January 2013 11:25 AM
Tapped Horn For Car mwmkravchenko Subwoofers 365 17th November 2011 10:22 AM
Tapped Horn behavior screamersusa Subwoofers 32 21st October 2008 03:31 AM


New To Site? Need Help?

All times are GMT. The time now is 01:19 AM.


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