Two subs always better than one?

[Big Daddy]

Originally Posted by liquidice

by far the best way to get your speakers into position is doing the "subwoofer crawl". Jomari told me about this months ago, and it is a fantastic way to get the placement right. In your case, your probably not going to want to move your 12" around, but doing this with your 8" will ensure it's put in a place that you'll get the best response from while in your seated viewing place.

Liquidice,

If you want to go one step further, go to A Guide to Subwoofers (Part II): Standing Waves & Room Modes. Between 1/3 to 1/2 down, you will see expanation and the link to room crawl video from Axiom. If you have access to Excel, there is demonstration of how to graph your results with the help of test tones and get the best and flattest bass frequency response.

[jaejw1]

Originally Posted by Big Daddy

Liquidice,

If you want to go one step further, go to A Guide to Subwoofers (Part II): Standing Waves & Room Modes. Between 1/3 to 1/2 down, you will see expanation and the link to room crawl video from Axiom. If you have access to Excel, there is demonstration of how to graph your results with the help of test tones and get the best and flattest bass frequency response.

holy crap... just read that link,,, and read the links provided.. ofcourse not all of them,,, not while driving..lol.. j/k

seriously though,, the link that helped the most in putting all of this together in almost layman terms was here.. http://www.harman.com/wp/pdf/multsubs.pdf

very helpful.. and that video instruction by axiom.. crawling for bass... ... although its an old concept .. (something that was told to me long ago).. its still holds true today..


i actually just looked at more.. and there are others that are easier to understand.. still good reads..

[jomari]

Originally Posted by jaejw1

holy crap... just read that link,,, and read the links provided.. ofcourse not all of them,,, not while driving..lol.. j/k

seriously though,, the link that helped the most in putting all of this together in almost layman terms was here.. http://www.harman.com/wp/pdf/multsubs.pdf

very helpful.. and that video instruction by axiom.. crawling for bass... ... although its an old concept .. (something that was told to me long ago).. its still holds true today..


i actually just looked at more.. and there are others that are easier to understand.. still good reads..

crawl theory still holds true.

man, im surprised Jae, no one else around here mentioned the Harman white papers except you. great read, interestingly difficult to comprehend the first time around, but definitely a great read.

[jaejw1]

Originally Posted by jomari

crawl theory still holds true.

man, im surprised Jae, no one else around here mentioned the Harman white papers except you. great read, interestingly difficult to comprehend the first time around, but definitely a great read.

its been a long time since i looked at all that stuff (been out of car audio for over 5 years).. but i like how they did it.. showing all the different ways one can dump subs in their theater.. and then showing the different effects..

[bigmod]

The Harman paper is great

And the crawl is very interesting but not easy to do when a giant couch is your seating position

[Big Daddy]

Originally Posted by bigmod

The Harman paper is great

And the crawl is very interesting but not easy to do when a giant couch is your seating position

The subwoofer crawl is effective for placing one subwoofer in a room to get good bass sound for one listening position. If you can move the couch slightly and put a chair there and put the sub on top of the chair, it works best.

As I explained the subwoofer crawl in the Guide, using an SPL meter will give you better results. Also plotting a curve, SPL (dB) versus Frequency (Hz), is helpful.

[HAMP]

I never did do the crawl, but with my area I don't have much of an option.

I love where mine are now and I can't imgine them sounding any better anywhere else then where they are now.

[Big Daddy]

Originally Posted by jomari

crawl theory still holds true.

man, im surprised Jae, no one else around here mentioned the Harman white papers except you. great read, interestingly difficult to comprehend the first time around, but definitely a great read.

I have had those Harmon papers and other links in A Guide to Subwoofers (Part II) for about a year. I am glad people are finally reading them and appreciate the science behind subwoofer placement.