Fallen sonotube

Discussion in 'Archived Threads 2001-2004' started by Jedd, Apr 11, 2002.

  1. Jedd

    Jedd Second Unit

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    Another idea I have. [​IMG]
    What will happen if I put sonotube (22"x2') on a side?
    I'm trying to remember something from the school physics.. Will the sound pressure keep the rigid form in this case or not?
     
  2. Patrick Sun

    Patrick Sun Studio Mogul

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    I take it you're worry about some bazooka action going on under intense bassy scenes? [​IMG]
    As long as the endcaps are securely attached to the tube, you shouldn't have any problems on that front.
    You'll have to make some stand/mount with the curvature of the tube factored in so it doesn't roll around the room.
     
  3. Jedd

    Jedd Second Unit

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    I'm woried about the whole sonotube concept:

    when the tube does stand as it should the sound makes the same pressure in all directions on the same level, so the tube walls are rigid as a stone.

    I'm not sure, would it keep internal pressure as well in my case or not?

    Anyway I'm about to try it (for the sake of easy amp-flushing and low profile), just hope it wont screw up because of the some physics laws pulling.
     
  4. Mike Strassburg

    Mike Strassburg Second Unit

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    Probably be easiest just to make the outer endcaps square, or at least part of them......
     
  5. Brian Bunge

    Brian Bunge Producer

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    Jedd,

    Laying the tube on it's side won't affect the internal pressure in the enclosure.

    Brian
     
  6. ThomasW

    ThomasW Cinematographer

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    Jedd

    As others have stated the tube will work fine. That being said realize the tube material is fragile. So avoid impact damge from vacuums, or other things scurrying about the floor etc.
     
  7. Archer S

    Archer S Auditioning

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    Re: Sonotube fragility.

    Another hobby of mine that makes extensive use of Sonotube is telescope making. A popular technique used by ATM's to toughen up their sonotube is to coat it with WEST System epoxy. This should make the outer layer tough enough to withstand the occaisional encounter with the vacuum, cats, kids, etc...
     
  8. ThomasW

    ThomasW Cinematographer

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  9. Robert_Gaither

    Robert_Gaither Screenwriter

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    The only other problem I can also see is that Sonotube subs are somewhat light and might dance in a backward/forward motion due to the movement of the cone (a heavily weighted stand and firm mounting is a must).
     
  10. Jedd

    Jedd Second Unit

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  11. Patrick Sun

    Patrick Sun Studio Mogul

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    If you punched the tube on its side, you can crease it and crumple it. You do that with a piece of wood, and your knuckles will be paying the price.
     

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