What happens when a sub is in a corner - 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 10th May 2011, 05:00 PM   #1
djn is offline djn  United States
diyAudio Member
 
djn's Avatar
 
Join Date: Oct 2004
Location: Waterford Michigan
Default What happens when a sub is in a corner

When a vented sub is placed into a corner do the three boundries boost all the freqs the sub puts out or just a certain range?

What are the neg and pos issues with corner placement
__________________
My "Art" website http://home.comcast.net/~djnagle/site/
  Reply With Quote
Old 10th May 2011, 05:27 PM   #2
diyAudio Member
 
Join Date: Jan 2008
Quote:
Originally Posted by djn View Post
When a vented sub is placed into a corner do the three boundries boost all the freqs the sub puts out or just a certain range?

What are the neg and pos issues with corner placement
If the sub is crossed lower than the wavelength of the baffle board at the crossover frequency then corner loading will increase level over the entire frequency range.

Positive attributes are increased level, less boundary cancellation.

Some main speakers don't work well in corners, if the subs are placed in the corner and the mains are not, some time alignment may be needed.
  Reply With Quote
Old 10th May 2011, 05:41 PM   #3
djn is offline djn  United States
diyAudio Member
 
djn's Avatar
 
Join Date: Oct 2004
Location: Waterford Michigan
Thanks Welt. I don't understand what you mean by the wavelength of the baffle board. Can you put that in laymans terms?
__________________
My "Art" website http://home.comcast.net/~djnagle/site/
  Reply With Quote
Old 10th May 2011, 06:02 PM   #4
diyAudio Member
 
Join Date: Jan 2008
Quote:
Originally Posted by djn View Post
Thanks Welt. I don't understand what you mean by the wavelength of the baffle board. Can you put that in laymans terms?
Every frequency has a wavelength, the speed of sound (1130 feet per second) divided by the frequency.

If your sub crossed at 100 Hz, the wavelength of the upper range is 1130/100, 11.3 feet. The baffle board would most likely be less than that length, so the entire frequency range would be increased.

If the crossover frequency was increased to 500 Hz (above the typical "sub" range, but used for illustration) a baffle board 2.26 (1130/500) feet wide will act as half space.

At higher frequencies, the baffle, rather than the corner, starts to define the boundary condition.

Art Welter

Last edited by weltersys; 10th May 2011 at 06:04 PM.
  Reply With Quote
Old 10th May 2011, 07:48 PM   #5
diyAudio Member
 
Join Date: Mar 2007
Location: California
When you corner one of these, it's best to stand tall, avoid eye contact, and back away slowly...



-Charlie
  Reply With Quote
Old 10th May 2011, 08:30 PM   #6
djn is offline djn  United States
diyAudio Member
 
djn's Avatar
 
Join Date: Oct 2004
Location: Waterford Michigan
Thanks Art. We are moving into a much smaller space and I have 4 subs but never really got serious about placement.
__________________
My "Art" website http://home.comcast.net/~djnagle/site/
  Reply With Quote
Old 10th May 2011, 09:38 PM   #7
diyAudio Member
 
Join Date: Nov 2007
Quote:
Originally Posted by CharlieLaub View Post
When you corner one of these, it's best to stand tall, avoid eye contact, and back away slowly...



-Charlie
LOL!!
  Reply With Quote
Old 11th May 2011, 03:35 AM   #8
djn is offline djn  United States
diyAudio Member
 
djn's Avatar
 
Join Date: Oct 2004
Location: Waterford Michigan
Signed the lease today and got to do some measurements. The new room is 15' x 16'. That should be enough room.
__________________
My "Art" website http://home.comcast.net/~djnagle/site/
  Reply With Quote
Old 15th May 2011, 12:04 AM   #9
CLS is offline CLS  Taiwan
diyAudio Member
 
Join Date: Jun 2005
Location: Taiwan
That's pretty square. Not a good proportion for audio. With speakers in corners, get ready to have some strong peaks aound 140~150Hz.
  Reply With Quote
Old 15th May 2011, 01:10 AM   #10
TerryO is offline TerryO  United States
diyAudio Member
 
TerryO's Avatar
 
Join Date: Nov 2002
Location: Seattle,Wash.
Dennis,

Corner placement will excite all the modes within the room. We used to believe that was a good thing, but experience has caused some of us to back away from that position (what pun?).

Best Regards,
Terry
__________________
"If you have to ask why, then you're probably on the right track."
quote from Terry Olson's DIYaudio Forum application
  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
Corner speakers GK Multi-Way 17 19th February 2009 04:10 PM
corner enclosures inrank Multi-Way 5 7th December 2007 03:56 PM
Corner Horn tinitus Multi-Way 30 13th December 2006 11:10 PM
Designer's Corner courage Everything Else 3 16th May 2006 09:38 AM
out of the corner.... ChesterFuzzin' Multi-Way 6 6th June 2002 09:13 PM


New To Site? Need Help?

All times are GMT. The time now is 11:44 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