Getting ready to build my final sub(hopefully)

Discussion in 'Archived Threads 2001-2004' started by Tom-K, Jan 3, 2002.

  1. Tom-K

    Tom-K Stunt Coordinator

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    My hometheater is getting close to being finished, and I am gearing up to build my final subwoofer. A while back, I posted a thread asking for help, and this is what I got. I am planning on building a coffee table sub, with 4 tempest drivers that I bought back in the preorder stage. I am going to build the table to house two sets of clamshell type iso setups (downward firing). I am looking for a Q of around .577. DanW wrote that if I have a net 220 litres, with (2) 4" flared ports 34 centimeters long, I would acheive a nice, low tuned sub. However, I just wanted to check things about before I started cutting, and put this info into the software available on adire's site, and came up with a -3db at 35 hz? Obviously, I'm doing something wrong? Any help would greatly be appreciated, should I just build with what he said, and hope my results are good? Thanks in advance.
     
  2. Patrick Sun

    Patrick Sun Moderator
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    I got a tune of 23Hz for 2 ports 4" wide and 34cm long in a 220 liter box.

    If you wanted to go lower, add roughly 4cm to 4.5cm for each 1Hz lower you want to tune.
     
  3. Hank Frankenberg

    Hank Frankenberg Cinematographer

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    FINAL??! FINAL?? BWAHAHAHAHAHAHA!!!
    Final is not a word in the D-I-Yers' vocabulary. There is no end to it.[​IMG]
     
  4. Brian Bunge

    Brian Bunge Producer

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    Well Hank, what's YOUR next sub going to be?[​IMG]
    Brian
     
  5. Hank Frankenberg

    Hank Frankenberg Cinematographer

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    Hope this doesn't gross out the bassheads here, what with their beyond-the-Tempest fantasies, BUT, I just completed my design for a Bose-Buster subwoofer based on a Dayton 8" driver and a 100-watt plate amp (MCM sale price @ $60.00). Yes, I said 8" and I hang my head in shame here, but remember the goal: Bose-Buster. Doesn't take much to bust 'em. I hooked it up during The Patriot and by golly, it sounds very good. I'll try to find someone who has a Bose sub for a side-by-side comparison (I must proudly say that my family/friends don't own Bose [​IMG]).
    Next comes some experimental cubes with small full-range drivers - I'm off to the laboratory. "Come, Igor! We have work to do!"
    Who you gonna call?
    Bose-Busters!
     
  6. Brian Bunge

    Brian Bunge Producer

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