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

Small Syns
Small Syns
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 29th December 2017, 05:34 PM   #361
Cask05 is offline Cask05  United States
diyAudio Member
 
Cask05's Avatar
 
Join Date: Nov 2007
Location: Arlington, TX
Too large.
  Reply With Quote
Old 29th December 2017, 06:28 PM   #362
300Z is offline 300Z  Brazil
diyAudio Member
 
Join Date: May 2006
Location: Recife
Send a message via AIM to 300Z Send a message via MSN to 300Z
Can also use any of the cloud storages to share the file, like MEGA or Dropbox.
  Reply With Quote
Old 29th December 2017, 08:14 PM   #363
Cask05 is offline Cask05  United States
diyAudio Member
 
Cask05's Avatar
 
Join Date: Nov 2007
Location: Arlington, TX
Be my guest...I won't get in your way.

It's also in Olson's Acoustical Engineering text, sections 5.29 and 5.30. That's also available online.

Chris
  Reply With Quote
Old 3rd January 2018, 08:45 AM   #364
Ro808 is offline Ro808  Netherlands
diyAudio Member
 
Join Date: Mar 2010
Quote:
Originally Posted by NEO Dan View Post
Can you attach a copy for those of us who do not have an account over there?
Here it is.
  Reply With Quote
Old 3rd January 2018, 11:09 AM   #365
Cask05 is offline Cask05  United States
diyAudio Member
 
Cask05's Avatar
 
Join Date: Nov 2007
Location: Arlington, TX
So if you consider a room corner as a secondary "manifold exponential" horn (i.e., exponential loading isn't necessary for loading, but the math is more straightforward in the Olson article) when a horn-loaded loudspeaker is placed near a room corner--especially one with a large horn mouth--then you might see that there is more gain or loss of throat loading at the off-axis woofer ports with a MEH-type loudspeaker in a room corner than with a direct radiating bass bin.
  Reply With Quote
Old 3rd January 2018, 03:35 PM   #366
NEO Dan is offline NEO Dan  United States
diyAudio Member
 
NEO Dan's Avatar
 
Join Date: Jun 2008
Location: N.E. Ohio
Quote:
Originally Posted by Ro808 View Post
Here it is.
Thanks
__________________
Regards,
Dan
  Reply With Quote
Old 8th April 2018, 09:05 AM   #367
3ll3d00d is offline 3ll3d00d  United Kingdom
diyAudio Member
 
3ll3d00d's Avatar
 
Join Date: Jan 2014
Quote:
Originally Posted by bwaslo View Post
When I was testing, I just used inexpensive plumbersí putty (from about any hardware store) and after getting it where it needed to be, left it in. Itís been ok for over a month now, so I think it will be ok for permanent use.
I am making a start on building these and had a question on this. Has plumbers putty been ok over a longer period of time?

Also re the ports, is the idea to keep the area approximately constant through the putty or is it expanding somewhat?
  Reply With Quote
Old 8th April 2018, 09:07 PM   #368
grec13 is offline grec13  United States
diyAudio Member
 
Join Date: Apr 2007
Location: Honolulu
One is ready, four to go!
Attached Images
File Type: jpg Synsmall.JPG (56.7 KB, 355 views)
__________________
Sergey
  Reply With Quote
Old 9th April 2018, 03:43 AM   #369
bwaslo is offline bwaslo  United States
Old guy with soldering iron
diyAudio Member
 
bwaslo's Avatar
 
Join Date: May 2006
Location: Portland, Oregon!
Small Syns
Quote:
Originally Posted by 3ll3d00d View Post
I am making a start on building these and had a question on this. Has plumbers putty been ok over a longer period of time?

Also re the ports, is the idea to keep the area approximately constant through the putty or is it expanding somewhat?
If i were to do it again, I'd use something like Rock Hard Water Putty or epoxy putty or bondo or the like (I used water putty on the ported versions). The plumber's putty hasn't given any problem to date, but that may not mean it never will, so no need to risk.

The ports in the horn are considerably smaller than the area leading down into them. Like this --

Compression Chamber.png
__________________
[W9MJE] Horn spreadsheet SynergyCalc/; SmallSyns SmallSyns;
Crossover design Xsim; Depot diffusor super-easy diffusors
  Reply With Quote
Old 9th April 2018, 02:40 PM   #370
3ll3d00d is offline 3ll3d00d  United Kingdom
diyAudio Member
 
3ll3d00d's Avatar
 
Join Date: Jan 2014
OK thanks. I'm not sure what a UK equivalent of water putty is (nothing obvious leaps out from a search) so will go with a putty (like Standard Yellow-Grey Milliput - For repairing water and fuel systems, filling dents, modelmaking and much more.)
  Reply With Quote

Reply


Small SynsHide 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
Sell beatiful small 6F3 small tube amp (used like new) siliconray Vendor's Bazaar 0 1st March 2012 12:50 PM
Small room, small speakers advice c12mech Full Range 10 14th March 2011 08:36 PM
small-signal (small-power) fast switching complementary transistors Lola Luna Solid State 3 8th April 2010 07:51 PM
Small-signal (or small power) pentode that can handle 400V (or more)? GordonW Tubes / Valves 12 13th June 2008 02:07 AM
PC-speakers + small amp (key words: small, cheap) rho Multi-Way 8 18th May 2006 01:19 PM


New To Site? Need Help?

All times are GMT. The time now is 12:54 AM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.00%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio
Wiki