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#355829 - 09/29/11 11:05 PM Speaker placement assistance please
nickbuol Offline
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Registered: 09/16/04
Posts: 5325
Loc: Marion, IA
I know where my front speakers are going, and where my rear surrounds are going, but I need some recommendations for the "side surrounds".

General rule of thumb states either in line with the listener's ears, or up to 30 degrees back...

But what about when you have 2 (or more) rows of seats?

Do you set it up for optimum listening for the main (front) row of seating, or do you compromise sound there to give better sound for the back row?

The room is about 24 feet long, 14 feet wide. I will have a 2 foot deep false wall up from with the front speakers behind the wall/screen. Then the heads of the front row people will be 13 feet back from the screen, and the heads of the second row of seats will be 19 feet back from the screen, and there will be 3 feet behind the heads of the back row and the rear wall.

Any ideas?
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#355831 - 09/29/11 11:20 PM Re: Speaker placement assistance please [Re: nickbuol]
JohnK Offline
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Registered: 05/11/02
Posts: 10626
Nick, I would optimize it for the front row(i.e., directly to the side) and use the second row for guests who you don't really like all that much. The "30 degrees back" placement refers to 5.1 setups where there aren't back surrounds to form a rear sound field and placing the side surrounds farther back provides some "phantom" back effect in their absence.

Probably placing them farther back is less of an overall compromise than having them well forward of the second row.
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#355836 - 09/30/11 01:44 AM Re: Speaker placement assistance please [Re: JohnK]
nickbuol Offline
axiomite

Registered: 09/16/04
Posts: 5325
Loc: Marion, IA
Here is the graphic that is floating around the web. This link came from an article that Alan did that was out on ecoustics.com



So I was off on the 30 degree thing, but it shows 20 degrees.

So John, you are thinking that maybe a couple of feet behind the front row pointing inward would be an acceptable compromise?

I found this picture for someone with 3 rows...



Edited by nickbuol (09/30/11 01:46 AM)
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#355842 - 09/30/11 02:23 AM Re: Speaker placement assistance please [Re: nickbuol]
jakewash Offline
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Registered: 12/26/03
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Loc: Calgary, Alberta
I would say I most likely would have set up my own HT with multiple rows like the second picture but I think I would have added a second set of side surrounds. I would move the front set to just behind the front row and the second set placed just in front of the third row.
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#355848 - 09/30/11 04:00 AM Re: Speaker placement assistance please [Re: nickbuol]
JohnK Offline
shareholder in the making

Registered: 05/11/02
Posts: 10626
Sure.
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#355854 - 09/30/11 09:45 AM Re: Speaker placement assistance please [Re: JohnK]
nickbuol Offline
axiomite

Registered: 09/16/04
Posts: 5325
Loc: Marion, IA
Originally Posted By: JohnK
Sure.


So convincing....

Originally Posted By: jakewash
I would say I most likely would have set up my own HT with multiple rows like the second picture but I think I would have added a second set of side surrounds. I would move the front set to just behind the front row and the second set placed just in front of the third row.


I will only have 2 rows, not 3 like shown in the picture.

Also, I just picked up a second pair of QS8s and upgraded my center to a VP180 (didn't know at the time that the VP160 was coming), so I am not in the position to buy another pair any time soon.

Anyone else? A couple of feet behind the front row? 3 feet back to split the difference between the 1st and 2nd row?

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#355871 - 09/30/11 12:19 PM Re: Speaker placement assistance please [Re: nickbuol]
Nick B Offline
aficionado

Registered: 08/05/06
Posts: 504
I've heard the suggestion that you put the side surrounds one third of the distance between the first and second row back from the first row. This is to help out with the side surround effects in the back row, though they are still coming from slightly in front of you, but not hurt the side surround effects in the first row. Going with rear surrounds on the back wall will also help to anchor the surround effects a bit more so that they don't feel like they are all coming from in front of you. I don't have a two row setup (but hope to in the near future), but I'm just letting you know what I've read and heard and putting it together with some common sense.

Three rows, who knows what works best. Probably two sets of side surrounds.

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#355872 - 09/30/11 12:27 PM Re: Speaker placement assistance please [Re: Nick B]
nickbuol Offline
axiomite

Registered: 09/16/04
Posts: 5325
Loc: Marion, IA
Yeah, I originally was doing 3 rows until I opted not to due to space limitations (front row would be too close, back row too far for great picture).

So if the difference is 6 feet, then you are saying 2 feet behind the front row "heads"... Ok. Starting to see a trend trying to form...
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#355876 - 09/30/11 02:11 PM Re: Speaker placement assistance please [Re: nickbuol]
Nick B Offline
aficionado

Registered: 08/05/06
Posts: 504
Originally Posted By: nickbuol

So if the difference is 6 feet, then you are saying 2 feet behind the front row "heads"... Ok.


Exactly. I bet the sound will be great in either row with you using QS8's in the side and rear surround positions. They are very forgiving in terms of placement.

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#355877 - 09/30/11 02:16 PM Re: Speaker placement assistance please [Re: Nick B]
nickbuol Offline
axiomite

Registered: 09/16/04
Posts: 5325
Loc: Marion, IA
Originally Posted By: Nick B

They are very forgiving in terms of placement.


Oh agreed. I've had my QS8s in all sorts of odd locations and been very satisfied, but since I am not limited to odd room dimensions or limitations like that, I just want to set them up as best as possible.
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2-M60s, VP180, 8-M3s, SVS 20-39PCi, DIY Sub, 8-Shakers, JVC RS45, Anthem MRX-1120

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