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Tip of the Day: Corner Loading a Small Sub for a Boost

by November 29, 2012
Tip of the Day: Corner Loading a Sub

Tip of the Day: Corner Loading a Sub

Tip of the Day: Corner load a small but potent sub to take advantage of low frequency room gain. Keep the wife happy aesthetically while getting the deep tactile bass you desire.  This can be accomplished with a small sub employing a HPF with a gradual rolloff.  The EMP ES1010i is one example that works well in such situations. 

Read our review of the EMP  ES1010i Subwoofer

By placing this sub in a corner, it allows low frequency boost in the 25-30Hz region to transform it from our Bassaholics "small" room to "medium" size room recommendation.

Check out the EMP ES1010i Subwoofer

Confused about what AV Gear to buy or how to set it up? Join our Exclusive Audioholics E-Book Membership Program!

 

About the author:

Clint Deboer was terminated from Audioholics for misconduct on April 4th, 2014. He no longer represents Audioholics in any fashion.

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Recent Forum Posts:

Steve81 posts on December 04, 2012 12:22
josko, post: 929504
Now I'm planning to go after the 110 Hz null with room treatments. I'm at a bit of a loss since I really don't know what bass traps I want or where to put them. (Kinda hate to just blindly buy some and hope for the best.) Would anybody know what kind of a mode is at 110 Hz in an 18' x 24' room? I believe that if I can figure out the mode shape, that would lead me to correct placement of bass traps, but I have not been succesful trying to figure out mode shape by playing a 110 Hz note and moving around the room with my SL meter. I assume ZI want the bass trap where SL is the highest near a wall, no?
Does anybody have an organized procedure for reducing a null like this?

There may be a few applicable thoughts on this thread:
http://forums.audioholics.com/forums/room-acoustics-system-layout-setup/82501-room-treatments.html

Floor/ceiling bounce was one possibility mentioned, and it could be applicable in your case. A calculator was provided which you could check:

http://mehlau.net/audio/floorbounce/
josko posts on December 04, 2012 12:17
I had a hard time with my sub (SVS SB13) in the corner. I did get some enhanced levels near 20-25 Hz, but ended up with pernicious 20 dB+ nulls near 81 and 110 Hz. I moved the sub around a lot, finally settling on a location between my left front and center speaker and maybe 8" away from the wall. I lost maybe 3 db in the 20-25 Hz range but also reduced the 81Hz null to something <5 dB, and the 110 Hz is behaving better, too.
IMHO, the overall sound is a lot better with that sub out of the corner.
Now I'm planning to go after the 110 Hz null with room treatments. I'm at a bit of a loss since I really don't know what bass traps I want or where to put them. (Kinda hate to just blindly buy some and hope for the best.) Would anybody know what kind of a mode is at 110 Hz in an 18' x 24' room? I believe that if I can figure out the mode shape, that would lead me to correct placement of bass traps, but I have not been succesful trying to figure out mode shape by playing a 110 Hz tone and moving around the room with my SL meter. I assume I want the bass trap where SL is the highest near a wall, no?
Does anybody have an organized procedure for reducing a null like this?
ratso posts on December 02, 2012 17:57
it was actually dr. floyd toole that recommended corner placement with a single sub. it was his position that you should get as much output as possible and deal with room modes with active eq, room treatments and changing your seating position.
gmichael posts on November 30, 2012 09:20
I corner loaded an 18" 4000 watt sub. Is that too small for this to work?
gene posts on November 30, 2012 06:18
SaviorMachine, post: 927995
What kind of article is this?

It's NOT. It's a tip of the day as the page title indicates, and something we plan on doing routinely to help neophytes.
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