What would happen if I took a 1" exit compression driver... - Page 3 - diyAudio
Go Back   Home > Forums > Loudspeakers > Multi-Way

Multi-Way Conventional loudspeakers with crossovers

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 14th September 2013, 05:34 AM   #21
freddi is offline freddi  United States
diyAudio Member
 
freddi's Avatar
 
Join Date: Aug 2005
gittin' there! - how would it sound at this point with EQ?
  Reply With Quote
Old 14th September 2013, 05:40 AM   #22
diyAudio Member
 
Join Date: Nov 2007
Location: Dallas
Now that plot seems well within reason to be equalized flat...
You may need lots of treble boost, since you havn't the usual
narrowing dispersion pattern.
  Reply With Quote
Old 14th September 2013, 05:47 AM   #23
diyAudio Member
 
Join Date: Nov 2007
Location: Dallas
Here was mine...
Styrofoam Smith Horn
  Reply With Quote
Old 14th September 2013, 05:57 AM   #24
diyAudio Member
 
Patrick Bateman's Avatar
 
Join Date: Oct 2006
Location: San Diego
Quote:
Originally Posted by dumptruck View Post
Denim insulation around top and bottom edge, not very neatly applied:
Click the image to open in full size.

A dip at 4800hz is indicative of a reflection about 0.7" from the diaphragm. Basically the sound is traveling 0.7", hitting something, then being reflected back into the diaphragm out of phase.

Would it be possible to see if there's something in the way? Or is it simply a reflection off of the radial baffle?

If it's the latter, you might stick a little cone of wood into the throat of the compression driver to scatter the reflection.
  Reply With Quote
Old 14th September 2013, 06:03 AM   #25
diyAudio Member
 
Join Date: May 2010
Location: MN
Well, that feature is the only one that vanishes if you remove the top circle and moves with the distance to the top circle, so I think that makes it pretty certain it's the latter? I suppose if I were using a bolt-on driver instead of one with the threaded part...
  Reply With Quote
Old 15th September 2013, 03:26 AM   #26
Pano is offline Pano  United States
diyAudio Moderator
 
Pano's Avatar
 
Join Date: Oct 2004
Location: Milliways
Blog Entries: 4
The Denim seems to have worked a treat. Ultratouch brand? I was going to suggest felt, but this seems to work well.
  Reply With Quote
Old 15th September 2013, 05:44 AM   #27
diyAudio Member
 
Join Date: May 2010
Location: MN
Yep, I've got two big garbage bags of it. It is really handy for any time "what if there was a lot absorption here?" comes up.
  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
FS: TAD TD-2001 1" Exit Compression Drivers (x4) cameronproaudio Swap Meet 2 29th July 2013 04:32 PM
Waveguides and compression driver exit angles a_tewinkel Multi-Way 16 16th December 2011 06:45 AM
Huge 2-way with 18" woofer and 2" exit compression driver? BHTX Multi-Way 15 23rd June 2011 10:59 AM
modifying compression driver's exit from 2" to 3" elac310 Multi-Way 0 13th April 2010 09:54 PM
Find Wavefront Shape @ Compression driver exit?? bear Multi-Way 65 13th May 2009 12:02 AM


New To Site? Need Help?

All times are GMT. The time now is 08:03 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