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Thread: How far should speakers be placed away from walls to eliminate smearing from early reflections?

  1. #31
    Member Addicted to Best! NorthStar's Avatar
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    Quote Originally Posted by caesar View Post
    What is the ideal distance for speakers to be placed away from walls to eliminate the smearing effect of early reflections?

    In a perfect scenario, is the middle of the room the best place?

    Thank you
    As a general rule; one third of the room's length, and one fifth of the room's width.
    There are also other rules, like the lower woofer not the same distance from the floor and from the side wall, or multiples (2x, 3x).
    If the side walls are treated, the amount of toe-in is less dependent.
    http://www.soundfountain.com/amb/speaker.html
    http://www.westlakeaudio.com/Speaker...ers_in_th.html

    * The middle of the room is NOT the best place.

    http://www.audiophysic.com/aufstellung/regeln_e.html
    http://noaudiophile.com/speakercalc/
    http://www.tweakshop.com/Speaker%20Placement.html
    All the Very Best, - Bob --------- "And it stoned me to my soul" - Van Morrison --------- AudiophileAudition

  2. #32
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    Quote Originally Posted by caesar View Post
    Anyways, is there an ideal distance away from the walls for one not having to deal with this problem?
    http://www.tweakshop.com/Speaker%20Placement.html

    1. Room length:
    If your room is a rectangle, the speakers will ideally face the length of the room, so place your desk by the shortest wall.

    2.Think in thirds:
    Imagine dividing the length of your room by three. Your speakers will sit within the first third of the room and more than 1m from the side walls. We did say you needed some room...

    3. Speaker angles:
    Music is generally released in stereo, which means the sound is spread between the left and right speakers. Positioning the speakers at a 60-degree angle gives you the best 'stereo image' of these sounds. Dust off your old protractor and position the speakers 60 degrees apart. It can help to place a small marker at your listening position and work it out from there.

    4. Space from wall:
    If you really do have a huge room to work with, pull the speakers away from the wall. There's a zone between 1m and 2.2m that ideally you want to avoid. If you have a smaller room, try to leave as much space as you can between the wall and the speaker -- up to 1m -- and do not place them too close to the wall either as the bass doesn't play well.
    All the Very Best, - Bob --------- "And it stoned me to my soul" - Van Morrison --------- AudiophileAudition

  3. #33
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    Quote Originally Posted by caesar View Post
    Gentlemen, thank you for the great discussion.

    What is the reason that we do not see more placements of speakers on the long wall? Does that, generally, put the listener's head too close to the back wall? Or are other problems created that way?
    For average room's size (European* and North American) the long walls are generally prefered, for room breathing between the loudspeakers and the listener.
    But some people have no choice, or prefer large distance between the two speakers (wide soundstage).
    And if the room is 22 feet long by 19 feet wide, it is quite flexible...or on the long or on the narrower wall.

    * In Europe, generally they have smaller rooms.

    ** Post #21 (by micro) is excellent.

    *** I like speakers that have a smooth on and of axis dispersion response. ...Tight together following a directional pattern on the same wavelength.
    ...Say from zero to 60
    All the Very Best, - Bob --------- "And it stoned me to my soul" - Van Morrison --------- AudiophileAudition

  4. #34
    [WBF Founding Member] audioguy's Avatar
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    My speakers are about 4.5 feet from side walls. I have had them closer in other rooms. Side wall first reflection diffussion, in my experience, makes the distance issue not too critical. Very easy to measure ... and hear. I use absorption for 2nd reflection point (opposite wall speaker). And like most of high end audio, personal preference still rules the day.

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