Kain
In a 5.1 setup, is the ideal placement of left/right surround speakers suppose to be on the side walls or on the back wall angled towards the listening position? I am planning on re-doing my home theater in a year or two and the room I have planned to use for the new home theater does not have side walls available for the left/right surround speakers. Just wanted to know if my seats are 1-2 feet away from the back wall, will it be okay to place the left/right surround speakers on the back wall and angle them towards the seating position? In my current 5.1 setup, I have the left/right surround speakers on the side walls.

Looking at Dolby's Web site, they recommend a 90-110 degree angle for the left/right surround speakers in a 5.1 setup. I guess a 110 degree angle means it is acceptable to place them just behind the seating position but angled towards the seating position?
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FOH
Kain wrote:
In a 5.1 setup, is the ideal placement of left/right surround speakers suppose to be on the side walls or on the back wall angled towards the listening position? 


Either way and whatever works best physically.

Kain wrote:
Just wanted to know if my seats are 1-2 feet away from the back wall, will it be okay to place the left/right surround speakers on the back wall and angle them towards the seating position?


Unfortunately, if you're going to be that close to the surrounds, small lateral movements of the listeners head can easily create huge shifts in the surround field.

Kain wrote:
Looking at Dolby's Web site, they recommend a 90-110 degree angle for the left/right surround speakers in a 5.1 setup. I guess a 110 degree angle means it is acceptable to place them just behind the seating position but angled towards the seating position?


In 5.1, I'd suggest striving for 110°, or as close as you can get to this. It's ok to be off from the angular position, just try to get it close.

To help matters, I've had great luck elevating the surrounds up to ceiling height, aiming them down and in directly at the primary LP. I'd say getting them further away from the listeners head, is more important than maintaining them at a specific height. Point being, don't forget about the ceiling.


I've recently changed my surrounds to a rail system, up on my ceiling, whereby I can re-located any of my four surrounds relatively easily. They can move as a group of two, or individually. I'm 7.x, with sides a bit forward of the LP, and rears about 20° back. They're yoke mounted, so I can aim them in any direction, place them anywhere in a ~10' square.  

I hope this is helpful.
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Kain
Thanks for the reply.

I guess I should be fine. [smile]

I'll experiment with seating distance from the back wall and the angle of the left/right surround speakers when placed on the back wall.
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Thomas_Smith
I usually place my speaker to the right or left of my listening position. Aim them directly towards you for the best sound. If side placement is not practical, better to place your surround speaker a few feet behind your listening position and face them forward. You will want your surround one two feet above ear level to get the best sounds effect. BTW, i got new Klipsch RB 61 after seeing this one. It got some interesting stuff to look for.
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audioguy
Thomas_Smith wrote:
I usually place my speaker to the right or left of my listening position. Aim them directly towards you for the best sound. If side placement is not practical, better to place your surround speaker a few feet behind your listening position and face them forward. You will want your surround one two feet above ear level to get the best sounds effect. BTW, i got new Klipsch RB 61 after seeing this one. It got some interesting stuff to look for.


I would add a couple of things to this.  For the speakers placed directly at your side, I would place them 8 to 10 inches above ear level for a couple reasons. (1) if your room is not particularly wide, pointing directly at your ear can be a bit problematic and (2) if there are people on either side of you, your head will be in direct line and block the direct sounds to those on both sides.

In addition, if you are not planning on adding Atmos speakers, then mounting the side speakers even higher works quite well.  Mine were at just about 6 feet prior to lowering them when I added Atmos speakers.
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