Need some advice regarding Adire Tumult in a ported enclosure

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  • ThomasW
    replied
    I used a 30"+ port with the AS-15 and have no problems with any port resonances.

    Be sure to use the Aero-Port 6" flares to avoid chuffing with any high output driver.

    IMO a 12dB/octave XO slope is a little low....

    Make a full size cardboard model of the ported sub then ask her if she'd prefer a 15" diameter hole in the wall instead!




    theAudioWorx
    Klone-Audio

    Leave a comment:


  • Greg Y
    started a topic Need some advice regarding Adire Tumult in a ported enclosure

    Need some advice regarding Adire Tumult in a ported enclosure

    I am attempting to model an Adire Tumult in a ported enclosure. I am trying to use a 160 liter enclosure tuned to 20 hertz with a 6" port. Unibox 4.02 tells me the port should be about 33.75". This port has a resonance at 190 hertz and the airspeed in the port is 39 m/s at 18 hertz driven with 1200 watts. Does anyone think that the port resonance and the port airspeed are a problem. I will be using my ht receiver's 12 db/octave sub filter for the crossover. The crossover frequency is 80 hertz. I do have a BFD if this will help any.

    This driver appears to require a long large diameter port no matter what box you put it in. If you put it in a 200 L box and tune it to 20 hertz you get about a 1.5 db hump at 20 hertz. To get rid of the hump you then tune it to ~ 17 hertz and you have a long large diamter port again.

    I do have a linkwitz transform I can use on this sub for a sealed alignment. It also looks tasty as an IB sub with a linkwitz transform . My wife is relutctant to let me cut a hole in the wall :roll:
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