5.1 Monopole Surrounds Placement - AVS Forum
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post #1 of 6 Old 09-08-2013, 11:14 PM - Thread Starter
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I have a very open room to work with and can place my Pioneer BS22 surrounds almost anywhere. My problem is knowing WHERE to place them. Should they be:
-At the sides of the MLP aiming at each other?
-Slightly behind and aimed forward at the front wall?
-Should they form a "box" or square shape with the fronts or should they be farther away to be equally far from the MLP?

Your help would be greatly appreciated as Google has let me down on my research of this tricky subject.
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post #2 of 6 Old 09-08-2013, 11:54 PM
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For a 5.1 speaker layout, I would put the surrounds ±110-120° from centre line. This strikes a good balance between side and rear imaging.


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post #3 of 6 Old 09-09-2013, 03:22 PM - Thread Starter
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That diagram doesn't tell me a whole lot. How far away from the MLP should they be? How should they be tilted? Should they match up along the line in front of the mains or not?
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post #4 of 6 Old 09-09-2013, 03:43 PM
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Quote:
Originally Posted by MamaKrayma View Post

That diagram doesn't tell me a whole lot. How far away from the MLP should they be? How should they be tilted? Should they match up along the line in front of the mains or not?

Au contraire! I thought it was a brilliant response to your original post - it answers every one of your questions - perhaps you're not understanding what it's telling you?
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post #5 of 6 Old 09-09-2013, 03:56 PM
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Your main listening position is in the center of the circle. The circle represents your listening distance (D), so the diagram is recommending that the distance between you and your side surrounds be the same as the distance between you and your mains (all speakers sit along the edge of the circle). Note that this is also true for the center speaker. How aggressive you get with toe-in will depend on your particular speakers and listening environment, but as a starting point, the diagram is showing everything pointing at the main listening position. You'll need to experiment with that to get the best results.
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post #6 of 6 Old 09-09-2013, 06:59 PM
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Quote:
Originally Posted by MamaKrayma View Post

How far away from the MLP should they be?
Doesn't matter, since initial calibration will set levels and delays to make all the speakers sound equidistant from the MLP.
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Originally Posted by MamaKrayma View Post

How should they be tilted?
Towards you, since speakers typically sound best on-axis.
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Originally Posted by MamaKrayma View Post

Should they match up along the line in front of the mains or not?
Your choice, since calibration will compensate for placing them in a line. Just get close to those angles and you're good to go.

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