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post #1 of 20 Old 05-30-2010, 02:19 PM - Thread Starter
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How far apart should my fronts be from my tv?

Viewing distance is 10 ft from my 40inch LCD. Should three feet from each side of my tv be fine? What's the range?
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post #2 of 20 Old 05-30-2010, 02:42 PM
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Personally, I like to "scale" the size of the front soundstage closer to the size of the display. An unrealistically wide front soundstage sounds, well... unrealistic. I would try a placement 1 to 2 ft. on either side of the display. I think you might find the audio "image" locks up better with the video image than with a wider stage.

OTOH, many peole prefer that wider soundstage, even with a smaller display. It's all personal preference. Also, Dolby recommends 22 to 30 degrees. You may prefer that.



For 2-channel music listening, a wider stage would be better. Usually an equilateral triangle is recommended.

Bottom line, it's all personal preference. Try it multiple ways and see what *you* like.

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post #3 of 20 Old 05-30-2010, 03:01 PM - Thread Starter
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thanks, what I dont understand is why would Dolby/DTS say 20-33 degrees from viewing distance from screen if they dont take into consideration TV size? Obviously a bigger tv would probably push speakers further apart which at the end would mean more degrees? From what you see im kinda stuck.. I could put them right next to my center speaker around 2ft away or 4 ft that I have right now. Viewing distance is around 10ft away. (pics make it look closer) Im thinking of going 55-60 inch tv in the future ( once 3D technology goes down in price) i think it should blend my video and sound better
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post #4 of 20 Old 05-30-2010, 03:12 PM
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Well done on the 3 identical front speakers!

Can you slide the display to the right a little and then move the left speaker to the other side of the door? Is the listening position centered on the display?

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post #5 of 20 Old 05-30-2010, 03:25 PM - Thread Starter
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The thing is that the listening position is center to the tv (my bed). I cant move the tv to the right because their is a chimney next to my bed. I can go bigger and fill the wall (with a bigger tv in the future) but thats about it. I was thinking of sliding the tv to the left a bit but it would prob only move everything closer around 1ft.
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post #6 of 20 Old 05-30-2010, 03:38 PM - Thread Starter
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Quote:
Originally Posted by craig john View Post

Well done on the 3 identical front speakers!

Can you slide the display to the right a little and then move the left speaker to the other side of the door? Is the listening position centered on the display?

Craig

thanks
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post #7 of 20 Old 05-30-2010, 04:53 PM
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Can you move the display over just enough to make room for the left speaker inside the door? Then move the right speaker over next to the display, the same distance away as the left speaker. This will pinch the soundstage, but it may "scale" to your display better. Also, it will move the L/R speakers away from the side walls and reduce the reflections off those walls. Try it. You *might* like it.

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post #8 of 20 Old 06-02-2010, 10:29 AM
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Quote:
Originally Posted by stang323 View Post

thanks, what I dont understand is why would Dolby/DTS say 20-33 degrees from viewing distance from screen if they dont take into consideration TV size?

The size of the display isn't taken into consideration because the angle isn't measured from the display. It's measured from the listening position. It's measured from the couch in the picture that craig used, but it would be measured from the bed in your case.

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post #9 of 20 Old 06-02-2010, 10:33 AM
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The angles of the speakers depends more on the speaker off axis response and not what Dobly generalizes.

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post #10 of 20 Old 06-02-2010, 02:03 PM
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Quote:
Originally Posted by penngray View Post

The angles of the speakers depends more on the speaker off axis response and not what Dobly generalizes.

Actually I think that for stereo the 30 dagree each, 60 degree total is about rightish regardless of speakers' off axis response. We're talking more about directional cues and less about the FR effects of off axis response. Deal with axis issues by adjusting toe in, at least sez me. YMMV

On the general topic, I've been running my fronts in the roughly 30 degree setup, which puts tham probably a couple of feet from the TV, without any problems. Experimentally, I placed them significantly farther apart (one potential rearrangement of my room would demand it) and while it was different with movies, I did not find it distracting. I think that's because in most movies most of the sound that's toward the center is present significantly in the center speaker. But I recognize this is likely an unusual personal non-preference kinda thing. Of course it's hopeless for imaging with a stereo signal, but I've tended to use one of the Dolby modes to expand my stereo sources into 5 channel, so the center can sort of (but not fully) fix it. As I said, experimental.

I also suspect that images panned hard left or right are likely to be off-screen sounds anyway, but that's (a) a WAG and (b) sure to differ from movie to movie. I admit it seems weird to me when I see setups that put the three fronts so close togehter that you must be getting "wide mono" with little spatial differentiation. But as others have said before it's personal preference, and you can do what you like.
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post #11 of 20 Old 06-02-2010, 03:10 PM
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Quote:
Originally Posted by JHAz View Post

I also suspect that images panned hard left or right are likely to be off-screen sounds anyway, but that's (a) a WAG and (b) sure to differ from movie to movie.

I remember some DVD review site (forgot the name) several years ago sampling a few dozen films to see whether hard panned sounds coincided with images at the edge of the screen OR with objects just off-screen. It's what you suspected: different from movie to movie. There were some soundtracks that sounded right with the L/R speakers placed against the sides of a RPTV or just inside an acoustically transparent screen, while other movies tracked better with the L/R speakers spread away from the display. So, like you said, it comes down to personal preference.

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post #12 of 20 Old 06-03-2010, 08:50 PM - Thread Starter
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anyone recommend any bluerays that have great amount of 5.1 panning?

Something that can give me a pretty good idea how my speakers mix with the video?
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post #13 of 20 Old 06-04-2010, 02:51 PM
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Quote:
Originally Posted by stang323 View Post

anyone recommend any bluerays that have great amount of 5.1 panning?

Something that can give me a pretty good idea how my speakers mix with the video?

Don't know if it's out on Blu-ray, but try chapter 11 of 'Mission to Mars', where the mission commander's voice circles the room. You'll get a good idea of how well your various speakers are timbre matched AND how well the audio tracks with the video.

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post #14 of 20 Old 06-05-2010, 12:45 AM - Thread Starter
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That's funny , I have mission to mars but on dvd
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post #15 of 20 Old 07-04-2015, 10:37 AM
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Display and front speaker vertical position?

I'm installing a new system, with a 50" display, front speakers on stands. My eyes are at about 40" off the floor while sitting in my listening chair. The TV will be wall mounted above the equipment stand which is 30" high, and the TV is about 26" bottom to top. The speakers are 14" tall.

I THINK the optimum viewing position for the TV would have the middle of it at eye level or 40" above the floor, but that would put it just 27" above the floor which won't work. I also think the tweeters of the speakers should be at ear level or about 40".

So here's what I'm considering, knowing it's not perfect: TV at 36" above the floor, middle of the screen would be at 49" above the floor. 36" speaker stands, which would put the tweeters at about 48" above the floor.

Would this work, or should I consider a different, shorter equipment stand and mount the TV and Speakers lower?
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post #16 of 20 Old 07-05-2015, 09:04 PM
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Just chiming in about the "going to go with 3D TV when that falls in price a bit", check out the Samsung 3D with those active glasses. Got a UE46D6500 and unlike others it actually works for me, even though I have something that works out as two vision-centers (I consciously choose which eye to be the main focus, so 3D often doesn't work, particularly the colored glasses). But with this particular set of 3D it works well. No idea what others mean when they say they supposedly see double. So test that technology out, should be affordable 50+ inches by now with that tech. Mine's a 46" and sitting 3 and a half feet from it playing hitman in 3D is pure epicness. I would not be surprised if the numpties that reported seeing double left the glasses turned off.

Anyway, try a bunch different positions, your speakers are easy enough to move around. Some of us don't have that luxury, they're the ones that spend more time discussing where they should be than moving them around to find out where it sounds best.

FYI: nothing wrong with having tweeters below or above ear level, just angle them to match. Down if they're above ear level, up if they're under ear level. Not much, a 12-folded piece of paper is enough to angle them

Last edited by ronny31; 07-05-2015 at 09:08 PM.
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post #17 of 20 Old 07-06-2015, 07:10 AM
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Quote:
Originally Posted by unavol View Post
Quote:Originally Posted by stang323

thanks, what I dont understand is why would Dolby/DTS say 20-33 degrees from viewing distance from screen if they dont take into consideration TV size?


The size of the display isn't taken into consideration because the angle isn't measured from the display. It's measured from the listening position. It's measured from the couch in the picture that craig used, but it would be measured from the bed in your case.
Actually, screen size is taken into consideration, just as a separate issue. Look for the recommended viewing distance based on either SMPTE's recommendation, THX's recommendation, or visual acuity (minimum viewing distance so a person with 20/20 vision cannot resolve individual pixels). If you calculate viewing distance first, then place speakers just outside of the screen edge, you come pretty close to +/- 20-30 degrees, where their position will most often match panning position. And, you'll be sitting a whole lot closer to your 40" screen!

"We don't like their sound, and guitar music is on the way out." -- Decca Recording Co. rejecting the Beatles, 1962.
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post #18 of 20 Old 07-06-2015, 07:18 AM
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Originally Posted by ronny31 View Post
Just chiming in about the "going to go with 3D TV when that falls in price a bit", check out the Samsung 3D with those active glasses. Got a UE46D6500 and unlike others it actually works for me, even though I have something that works out as two vision-centers (I consciously choose which eye to be the main focus, so 3D often doesn't work, particularly the colored glasses). But with this particular set of 3D it works well. No idea what others mean when they say they supposedly see double. So test that technology out, should be affordable 50+ inches by now with that tech. Mine's a 46" and sitting 3 and a half feet from it playing hitman in 3D is pure epicness. I would not be surprised if the numpties that reported seeing double left the glasses turned off.

Anyway, try a bunch different positions, your speakers are easy enough to move around. Some of us don't have that luxury, they're the ones that spend more time discussing where they should be than moving them around to find out where it sounds best.

FYI: nothing wrong with having tweeters below or above ear level, just angle them to match. Down if they're above ear level, up if they're under ear level. Not much, a 12-folded piece of paper is enough to angle them
Wonder what @stang323 did in terms of the 3d in the last 5 years since that was posted
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post #19 of 20 Old 07-06-2015, 08:38 PM
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Originally Posted by lovinthehd View Post
Wonder what @stang323 did in terms of the 3d in the last 5 years since that was posted
oh lol, people have to stop reviving such old threads XD
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The TV will be wall mounted above the equipment stand which is 30" high, and the TV is about 26" bottom to top. The speakers are 14" tall.
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