How far away from the wall should the port on a sub be?

Discussion in 'Speakers' started by Matt_Smi, Apr 29, 2004.

  1. Matt_Smi

    Matt_Smi Second Unit

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    After just reading another post about someone saying that having the port of their sub too close to a wall made it sound worse. I realized that my port of my Sony SA-WM40 is about 5” away from the wall. Maybe this makes it sound boomier? When I go home this weekend (at college now) I will pull it away from the wall and see if it makes a difference in sound (doubt it will). The main reason I ask this is because I plan of purchasing a HSU STF-2 soon. And I will be going in the same place where my Sony currently is, so the port on it will be pretty close to the wall. And I don’t want this to make the sub sound worse. If I have too I could pull it out from the wall, but it would stick out and look funny. Anyway does this make a difference? And is there a minimum distance that the port should be from the wall? Or does it vary from manufacturer to manufacturer?
     
  2. ChrisWiggles

    ChrisWiggles Producer

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    a few inches is usually ok as minimum, but placing the sub properly will have a *HUGE* impact on the SQ you get from it. OFten a corner is a good place to start, the corner helps reinforce things, but the best thing to do is move it around to lots of places and see where it sounds best, and/or put it in your listening position, then crawl around and see where it sounds best, then put it there.
     
  3. WayneO

    WayneO Supporting Actor

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    I'd say 3" is safe to gaurantee the air can get out without any added resistance. My SVS PB2+ was fine when I had it that far away.
     
  4. John Garcia

    John Garcia Executive Producer

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    VTF-2 manual states minimum of 2", STF-2 will be the same, OR, simply don't point the port at the wall.
     
  5. Matt_Smi

    Matt_Smi Second Unit

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    Ok sounds like I will be fine then, I won't worry about it, Thanks.
     

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