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What tune for 9 cu ft tempest enclosure?

Discussion in 'Home Theater Projects' started by JohnA, May 21, 2002.

  1. JohnA

    JohnA Stunt Coordinator

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    Any suggestions on what to tune a 9 cubic foot tempest enclosure to?

    This will be a ported enclosure to compliment my 5 cu. ft. sealed maelstrom that is just about complete.

    Thanks

    -JohnA
     
  2. Dustin B

    Dustin B Producer

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    My 260L Tempest is tuned somewhere between 16 and 17hz and I have no complaints. Anywhere between 16-18hz should be fine.
     
  3. ThomasW

    ThomasW Cinematographer

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    Why would you bother with building a huge box for a Tempest when you already have the Maelstrom?????
     
  4. JohnA

    JohnA Stunt Coordinator

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    Dustin

    Thanks for your input.

    Thomas

    I enjoyed designing and building the sealed Maelstrom and would like to have a try at a ported sub that is a little more affordable.

    Will I need another subwoofer with the Maelstrom? I don't know. The room is part of an open concept floor plan that measures around 5800 cu. ft. The only thing left to complete the Maelstrom is installing the driver in the enclosure (which I hope to do this weekend).

    Should the Tempest prove to be overkill, it can always be used in a room being comlpeted in my basement (2600 cu. ft.)

    Your Klone Audio site has proven a great resource and inspiration. The "AS-15" Aerial Stryke sub being a benchmark for me.


    -JohnA
     
  5. ThomasW

    ThomasW Cinematographer

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    Hi

    Glad the website is helpful.

    To my way of thinking the Tempest wouldn't be needed given the output from the Maelstrom.

    Also you may run into some weird cancelation issues having two subs in different locations.
     
  6. CarlDais

    CarlDais Stunt Coordinator

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  7. JohnA

    JohnA Stunt Coordinator

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    Thomas

    As far as cancellation issues from mulitple subs, I currently have a Definitive Technologies Powerfield1500. It sounds like I should place the subs in the same place or try my set up without the DF 1500 at first.


    Carl

    Adire updated LSPcad with the Maelstrom driver many months ago. Just download the latest version and the driver is there.

    -JohnA
     
  8. Dustin B

    Dustin B Producer

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    Everything I've read says the Tempest is a better choice for an IB than a Maelstrom.
     
  9. ThomasW

    ThomasW Cinematographer

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    Carl

    For IB subs the Qts of the driver ends up being the Qtc of the system. The Maelstrom has a Qts of 0.28. IMO thats going to be way overdamped for an IB. I'd suggest using drivers with a higher Qts.
     
  10. CarlDais

    CarlDais Stunt Coordinator

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    Thanks John A....I guess it'd help if I would log on more often and check the site.

    Dustin & Thomas....thanks. That's what I thought.
    The tempest's higher Qts & lower Fs make it a better
    choice for IB installs.

    Time to get off the fence & cut some drywall.
     
  11. Chris Ramirez

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    Im sure someone out there needs a nice center channel that directly matches their C-3 Mains, heck it would be a really good alternative for those with C-9s looking for a good cheap center channel. Just flip it down and angle it down on top of a TV. -Chris-
     

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