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

Infinite Line Source: analysis
Infinite Line Source: analysis
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 30th January 2018, 10:16 PM   #431
wesayso is offline wesayso  Netherlands
diyAudio Member
 
wesayso's Avatar
 
Join Date: Jul 2007
Actually, it isn't one big reflection, but a line or array of smaller ones, all arriving at different intervals, probably easier to absorb due to that one wall reflection. No floor or ceiling to battle.
__________________
Use Science to design your speakers and they will sound like a piece of Art...
  Reply With Quote
Old 30th January 2018, 10:59 PM   #432
gedlee is offline gedlee  United States
diyAudio Member
 
gedlee's Avatar
 
Join Date: Dec 2004
Location: Novi, Michigan
I understand what you are saying, I just don't think that it is significant. Floor and ceiling reflections are diminished by high DI as well.
__________________
Earl Geddes Gedlee Website
  Reply With Quote
Old 31st January 2018, 04:28 PM   #433
BYRTT is offline BYRTT  Denmark
diyAudio Member
 
Join Date: Dec 2009
Infinite Line Source: analysis
Quote:
Originally Posted by samuelj View Post
At low frequencies the farfield to nearfield transition point would be closer to the line source, maybe even before reaching the listening distance. So it should be relatively easier to crossover to a point source above that.

Now if we cross a line and a point source at a frequency ( 450Hz for example) where the nearfield of the line source extends way beyond the listening distance, we should match their levels at 4m not 1m.
That way at 2.5m the point source will be 2dB hotter and at 6.5m the line source will be 2dB hotter.
This gives +- 2dB between 2.5m and 6.5m. Not bad given the situation.

Crossing a line source to a subwoofer or a supertweeter ( say above 14kHz or so) could be understood. But why would anyone cross a line to a point source at 450Hz??
To avoid another long line of midbass drivers or is it a well executed compromise for improving something else? or both?
Check out the new McIntosh xrt2.1k. They use point source for 150Hz- 450Hz and line source for bandwidth below and above that.
Thanks help then think will use one or the other and not mix them, well lets see .

Last edited by BYRTT; 31st January 2018 at 04:31 PM.
  Reply With Quote

Reply


Infinite Line Source: analysisHide 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
Short Line Array (line source) build perceval Full Range 226 4th January 2015 02:08 PM
Achieving Optimum Line Array Performance Through Predictive Analysis Patrick Bateman Multi-Way 2 27th June 2014 11:45 AM
Shunyata DTCD power line analysis jackinnj Power Supplies 1 16th December 2011 12:30 AM
Dynamic load line analysis using music and speaker load Michael Koster Tubes / Valves 0 7th March 2008 08:47 PM
line source diffraction david yost Multi-Way 8 5th June 2005 02:01 PM


New To Site? Need Help?

All times are GMT. The time now is 08:01 PM.


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