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

Group Buys Members group buys

Waveguides and horns
Waveguides and horns
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 23rd October 2012, 04:51 PM   #1211
jzagaja is offline jzagaja  Poland
diyAudio Member
 
Join Date: Jun 2004
Location: Szczecin
Waveguides and horns
Got sachet of Aquaplas.
Attached Images
File Type: jpg IMG_4522_1.jpg (258.6 KB, 705 views)
__________________
Visit us at http://www.horns.pl/
The SEOS™ Project http://www.avsforum.com/t/1291022/he...-rallying-here
  Reply With Quote
Old 23rd October 2012, 05:04 PM   #1212
phusis is offline phusis  Denmark
diyAudio Member
 
Join Date: Feb 2011
Location: Odense
Quote:
Originally Posted by jzagaja View Post
Got sachet of Aquaplas.
How is that evenly applied on the surface of a diaphragm?
  Reply With Quote
Old 23rd October 2012, 05:06 PM   #1213
jzagaja is offline jzagaja  Poland
diyAudio Member
 
Join Date: Jun 2004
Location: Szczecin
Waveguides and horns
Will try brush first and show results with D800Ti.
__________________
Visit us at http://www.horns.pl/
The SEOS™ Project http://www.avsforum.com/t/1291022/he...-rallying-here
  Reply With Quote
Old 23rd October 2012, 05:16 PM   #1214
AndrewT is online now AndrewT  Scotland
diyAudio Member
 
Join Date: Jul 2004
Location: Scottish Borders
Quote:
Originally Posted by gedlee View Post
I didn't measure 13 degrees. I worked for B&C and 6 degrees was on the drawings.
Is 6degrees the half angle?
__________________
regards Andrew T.
  Reply With Quote
Old 23rd October 2012, 05:22 PM   #1215
tinitus is offline tinitus  Europe
diyAudio Moderator R.I.P.
 
Join Date: Nov 2005
Waveguides and horns
Quote:
Originally Posted by AndrewT View Post
Is 6degrees the half angle?
and with the phase plug ?
  Reply With Quote
Old 23rd October 2012, 05:50 PM   #1216
Ed LaFontaine is offline Ed LaFontaine  United States
diyAudio Member
 
Ed LaFontaine's Avatar
 
Join Date: Feb 2004
Location: where the Appalachians rise from the Blue Grass
Gentlemen,

One may produce a "plug gauge" with polar graph paper and stick it into the throat to check fit. I have done this. I believe the included throat angle of the DE250 is very close to 14 degrees.
From this I made a wooden taper. I attached fine sandpaper to the taper to remove the mold marks from within the throat. The same served very well in smoothing the transition from driver to horn.
Better to get the mating surfaces lined up than to quibble over degrees. One degree difference will give you just about 1 foot in a hundred.

Last edited by Ed LaFontaine; 23rd October 2012 at 05:55 PM.
  Reply With Quote
Old 23rd October 2012, 06:46 PM   #1217
tinitus is offline tinitus  Europe
diyAudio Moderator R.I.P.
 
Join Date: Nov 2005
Waveguides and horns
theory and practice, not always the same thing

I just wonder what the exit angle is at the end of a phase plug like this one
theoretically probably completely wrong
sounds ok tho
Attached Images
File Type: jpg IMG_6052.JPG (129.9 KB, 622 views)
File Type: jpg IMG_6107.JPG (192.2 KB, 598 views)
File Type: jpg IMG_6398.JPG (156.8 KB, 579 views)
File Type: jpg IMG_6458.JPG (122.9 KB, 567 views)
File Type: jpg IMG_6426.JPG (113.8 KB, 85 views)
File Type: jpg IMG_6461.JPG (100.8 KB, 75 views)
File Type: jpg IMG_6469.JPG (162.1 KB, 99 views)
File Type: jpg IMG_6500.JPG (172.6 KB, 91 views)
File Type: jpg IMG_6504.JPG (138.4 KB, 69 views)
File Type: jpg IMG_6484.JPG (143.0 KB, 117 views)
  Reply With Quote
Old 26th October 2012, 05:57 PM   #1218
jzagaja is offline jzagaja  Poland
diyAudio Member
 
Join Date: Jun 2004
Location: Szczecin
Waveguides and horns
Mummy.4 - 12BR70+D800Ti. Hope aquaplas will help a little.
Attached Images
File Type: jpg Mummy4.jpg (71.3 KB, 159 views)
File Type: jpg IMG_4523_1.jpg (333.2 KB, 144 views)
__________________
Visit us at http://www.horns.pl/
The SEOS™ Project http://www.avsforum.com/t/1291022/he...-rallying-here
  Reply With Quote
Old 26th October 2012, 10:56 PM   #1219
gedlee is offline gedlee  United States
diyAudio Member
 
gedlee's Avatar
 
Join Date: Dec 2004
Location: Novi, Michigan
Quote:
Originally Posted by AndrewT View Post
Is 6degrees the half angle?
It was 6 or 6.5° (I don't remember the decimal places) - half angle.
__________________
Earl Geddes Gedlee Website
  Reply With Quote
Old 28th October 2012, 07:36 PM   #1220
jzagaja is offline jzagaja  Poland
diyAudio Member
 
Join Date: Jun 2004
Location: Szczecin
Waveguides and horns
Aquaplas brushed without turntable.
Attached Images
File Type: png Aquaplas_1.png (121.4 KB, 266 views)
File Type: jpg IMG_4525_1.jpg (303.8 KB, 264 views)
__________________
Visit us at http://www.horns.pl/
The SEOS™ Project http://www.avsforum.com/t/1291022/he...-rallying-here
  Reply With Quote

Reply


Waveguides and hornsHide 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
smith horns and using compression horns for a Karlson party speaker project bikehorn Multi-Way 14 30th January 2013 05:20 PM
Horns inside of horns open foe discussion oilcanracer Multi-Way 3 15th February 2010 03:42 AM
Compression drivers in horns or waveguides 454Casull Multi-Way 6 1st December 2008 12:41 PM
Phase plug necessity in horns/waveguides 454Casull Multi-Way 3 18th September 2005 07:36 PM
Horns: Vibrations and resonances in metal horns Rocky Multi-Way 10 28th July 2004 01:38 AM


New To Site? Need Help?

All times are GMT. The time now is 08:18 AM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.00%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright ©1999-2017 diyAudio
Wiki