A 10" that really wanted to be a tempest

Discussion in 'Home Theater Projects' started by Allen Ross, Dec 10, 2003.

  1. Allen Ross

    Allen Ross Supporting Actor

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    linky

    I got 4 of these from my friend last night, at 30 bucks apiece i don't think they will be that bad. Granted these will be used mostly for music, but they will have huge slam to them.

    We put two in a box with a volume of about 2.2 cuft and a port get this 80 inches long with a xsection of 50 inches squared, needless to say the box is going to be huge to accommodate the folded port. And the -3db point is at 50hz but the xmax isn't even touching the 13mm that these have so i will probably slap them on my BFD and bring them up so they roll off around 30ish.

    The thing that i really like it the group delay is so freaking small, at 10ms these things will be supper tight, Olsen twins tight!!!

    I will try and get the TS that he has for them so you guys can see what you can do for a box size.
     
  2. Rory Buszka

    Rory Buszka Supporting Actor

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    Sounds like your woofer really wants either a small sealed box or a passive radiator. With a port 80 inches long, you are starting to get into quarter-wave antiresonance loading. A ported enclosure that replaces the port with a transmission line is called a Daline, or Decoupled Antiresonant Line. The air in the line actually contributes significantly to the output of the speaker, but there are generally more considerations in the design of a daline than just a really long port length. I think you might be disappointed. I don't know. We will see.
     
  3. Owen Bartley

    Owen Bartley Second Unit

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  4. Allen Ross

    Allen Ross Supporting Actor

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