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Old 11-09-2011, 11:06 AM
 
Location: Central Texas
13,720 posts, read 25,899,696 times
Reputation: 9219

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In a 7.1 system, the seven speakers should be located as possible:

front center - dead center, probably below the TV display
front left and right - to the sides of the TV display, as close to center of the display height as possible
surrounds - if THX configuration, these should be dipole design, and directly to the sides of the primary seating position; if not THX, on the sides, and slightly behind the primary seating position
rear - behind the primary seating position

See the following for reference information.

Dolby Home Theater Speaker Placement and Setup Guide

In ceiling speakers generally aim sound "down" which means the directional cues contained in the soundtrack are compromised.

In wall subwoofers suffer from many problems - starting with the shallow depth of a 2x4 wall. The speaker drivers are compromised for the shallow space and the uncontrolled air space in the wall. The vibration generated by a subwoofer makes the wall come alive, which is almost always a bad thing.

If you are designing or building now, I strongly suggest incorporating box subwoofer(s) into the cabinet or framing. Even better for sound is to just buy a good looking subwoofer and leave it in the open such as in a front corner.
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Old 11-09-2011, 11:19 AM
 
Location: Texas
43,968 posts, read 53,794,362 times
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Yes. Only the rear speakers were going to be in the ceiling, but I see what you are saying about those being less than ideal. The front and sides can be incorporated at seating level in the built-in that the tv is housed in. Thank you.

What a pain. Makes me not want to do it at all because I don't want speakers littered all over the room if they can't be incorporated into the architecture. I may just scrap this plan and finish building the half-built movie theater upstairs. Don't care how that looks if it sounds great and looks great.
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Old 11-09-2011, 01:04 PM
 
Location: Central Texas
13,720 posts, read 25,899,696 times
Reputation: 9219
Quote:
Originally Posted by stan4 View Post
Yes. Only the rear speakers were going to be in the ceiling, but I see what you are saying about those being less than ideal. The front and sides can be incorporated at seating level in the built-in that the tv is housed in. Thank you.

What a pain. Makes me not want to do it at all because I don't want speakers littered all over the room if they can't be incorporated into the architecture. I may just scrap this plan and finish building the half-built movie theater upstairs. Don't care how that looks if it sounds great and looks great.
So you have another media room?

If the room this thread is about is just for everyday stuff, put in 5.1 instead of 7.1. Very few sources have a 7.1 soundtrack.

You can go in-wall or in-ceiling if you must. But the good stuff is expensive. The LAST thing I'd put in wall is the subwoofer.

SIG-1.5R-30 - Welcome to the New Official Paradigm® Website.
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Old 11-09-2011, 01:39 PM
 
Location: Silicon Valley
3,685 posts, read 8,491,847 times
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If you're willing to live with the sonic compromises, there are decent in-wall speakers available. Just be an informed buyer and be aware of the trade-offs you're making. I've heard the Paradigm Signature in-walls and they're pretty decent. Many years ago I heard some Thiel on-ceiling speakers that were surprisingly good (surprising for a pod that mounts on the ceiling, not surprising that Thiel made a good speaker).

It's also possible to build a false wall that hides floorstanding speakers and even subwoofers behind acoustically transparent cloth. Or, if you were planning on using a projector, you can put the speakers behind the screen, like this:

SmX Cinema Solutions :: Acoustically Transparent Projection Screen Application
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Old 11-09-2011, 03:12 PM
 
Location: Texas
43,968 posts, read 53,794,362 times
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Quote:
Originally Posted by hoffdano View Post
So you have another media room?

If the room this thread is about is just for everyday stuff, put in 5.1 instead of 7.1. Very few sources have a 7.1 soundtrack.

You can go in-wall or in-ceiling if you must. But the good stuff is expensive. The LAST thing I'd put in wall is the subwoofer.

SIG-1.5R-30 - Welcome to the New Official Paradigm® Website.
Oh, yeah. There is an actual room decked out as a half-finished movie theater upstairs. It's got the blackout stuff, painted, there's a closet for all the tech, wiring run-throughs.

The room I want to do is our family room. It's just got the 60 inch tv and blu-ray player, PS3. But it's where we spend most of our time.
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