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Correct 5.1 and 7.1 speaker placement. Where can I find a guide?

539 Views 4 Replies 5 Participants Last post by  sdurani
I read time and time again correct speaker placement is paramount to a good sounding 5.1 or 7.1 system. I'm extremely lost on how to correctly place my speakers. For example, how far apart should my left and right speakers be from each other? Should the surround speakers be aligned with the front's or spaced further apart? Does the spread depend on my viewing distance? Are there formulas for finding out this information? I see that audioholics sells an ebook guide. Anyone purchase that? Is it informative?

I have the dolby diagrams. I can't deal with angles. I have no way to correctly align anything using an angle. I don't have a giant protractor on hand. I need to deal with Ft and measuring tape.
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Yep what RayGuy said that and a laser pointer and or string. It helped me set up 4 Dolby Atmos speakers on my ceiling. I also used a microphone stand with clip attachment to hold the protractor in the MLP.
Good luck
Wish that you remembered that high school trig?:)

Not sure how much this will help.


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Went from 5.1 to 7.1 in 1991 when I got a Fosgate surround processor. Placed the Front speakers where they gave me soundstage and imaging that I was happy with. Experimented with the Side speakers to see where I got better envelopment (turned out to be about 10 degrees forward of my listening position). Spread the Rear speakers apart until I could clearly hear stereo separation behind me, but no wider than that (still wanted those sounds anchored firmly behind me, not some side-ish/rear-ish location). Never occurred to me to consult a guide or measure specific angles. When it came to speaker placement, liking how it sounded was more important to me than satisfying some guide. YMMV
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