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Speaker height...should known better

The other day I was listening to my system sitting down on my chair on my computer when all of sudden I had lower my head to glimpse a song on my screen when I realize, wait this sound much better. I have only lowered my head a few inches or 3 and all of sudden the music sounded way better. So much better to a point where it sounded coherent, phase timed and much more dynamic. I thought for a long time I have placed my Triangle BR03 tweeter at ear level. From the perception view from the listening position I would if thought it was at ear level. I was wrong. Currently my ears level is 3 inches above the tweeter(about the top of the cabinet). When I bought the speakers stands a few years ago, I got them new for my other speakers that were smaller. The current height on the stands are 28". I think what need now are at least 31". No wonder my measurements had a gradual roll off of the high end at around 8k at a couple of speakers I had. Now I am planning on getting higher stands to hear the difference.
highend64
highend64 OP
323 posts
 

I appreciate all the help. I did some mathematical calculation to figure out the angle tilt figured out I need a 3 deg angle at a distance of 5 ft. This correlates to a 3 inch increase at the listening position. Will see how this works out. 

faustuss's avatar
faustuss
816 posts
 

Um maybe this one? A2 + B2 = C2 (pythagorean theorem). You would need the √C to find the hypotenuse. Provided you’re looking at a perfect isosceles triangle otherwise it would require a few more calculations.

elliottbnewcombjr
7,731 posts
 

you use a pile of cds or books under the front edge to find what works, then make something

lonemountain
509 posts
 

Experimenting with speaker position is the single most overlooked issue in system set up- in consumer and pro.  For those with excellent hearing, even a few degrees off axis (off angle to the spot the speakers sound best) is audible.  For example, setting speakers sideways is an awful idea as the frequency area where the tweeter and woofer combine ALWAYS narrows vertical dispersion when the tweeter is above the woofer.  Ths works out okay when the speaker is set vertically.  Set horizontally, you narrow the dispersion dramatically in the horizontal plane, making the the sweet spot much smaller and increasing the energy going above and below the horizontal speaker.  If you could see the dispersion, the area where you can hear the speaker correctly in a vertical speaker now set up to be a horizontal speaker increases unwanted reflections. 

A good rule in proper speaker design is the tweeter above the midrange, midrange above the bass driver.  Its where the drivers combine (at crossover points) that the dispersion of the speaker is determined. 

brad   

celtic66
1,935 posts
 

Shorter chair.

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