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DLHgn

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DLHgn last won the day on November 30 2016

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About DLHgn

  • Rank
    140db
  • Birthday 04/14/1995

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  • Gender
    Male
  • Location
    San Marcos, Tx
  • Interests
    Home/Car Audio, Computer Science and Mathematics.

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  1. I stand by Lifeproof cases. They do what they say they do, they look and feel great and best of all, they have great customer service. Anytime I have an issue with my case, they make it right immediately and without question.  They've won a customer for life. 

  2. Help with box design

    These are all questions someone needs to know to design a custom box that will suit your needs especially the dimensions and amp. Without those it's a shot in the dark and a waste of time for both parties.
  3. Help with box design

    What amp will you be running and what are the dimensions you're working with? Also, what are your goals? Are you looking for more low end response or do you prefer higher bass? What kind of music do you listen to?
  4. Subwoofer enclosure design apps

    You can kind of think of the power of the unit, in this case, as the dimension that the unit is representing. mm is a one dimensional unit. It represents a length. mm2 is a two dimensional unit. It represents an area. mm3 is a three dimensional unit. It represents a volume.
  5. Subwoofer enclosure design apps

    To answer your question, you can just multiply the squared number by the single unit. They will equal a cubed unit which indicates your volume. Think of it this way. If I want to find the volume of a rectangle (think of a port) I can A.) Multiply the width, height and depth to find the total volume (width of port, height of port and length of port) or B.) If I already know the area of the face, I can multiply by the depth (port area multiplied by the port length) As long as your units are the same, regardless of it's power, you will be fine (mm and mm2 or in and in2 etc.) As for your google search, just a note, it multiplied the area and length to find mm3 then converted it to liters.
  6. My thoughts go out to all those who were affected by the Vegas shooting last night. Truly a tragic event. 

  7. I'm on google chrome for windows 10. I can open the garage tab and see a list of recently added vehicles (including your test one) but when I click on one it gives me an EXO error.
  8. Subwoofer enclosure design apps

    If i'm not mistaken, you can calculate cone volume displacement by multiplying the Sd (cone area) by the one way Xmax. Just make sure the Sd and Xmax are the in the same units before you multiply. For instance, Sd is generally given in terms of cm2 and Xmax in mm. Convert Sd to mm2 or Xmax to cm. Weirdly enough, your Sd is given in mm2 so you don't have to convert. Two way Xmax is the amount of travel from the top of it's limits to the bottom of it's limits (I don't know exactly how to word it). In other words, it's the total length of travel (not to be confused with Xmech or mechanical limits). All of the programs i've used want one way Xmax so dividing it in half should be fine.
  9. Not just listening but watching Good Mythical Morning. It's a silly youtube show but I enjoy it.
  10. I have a slight ringing of the ears when it's really quiet or if I think about it but I attribute that to my ear problems as a young child. It's not severe enough to cause me any issues for sure and I don't usually notice it unless it's super quiet.
  11. I would suggest using WinIsd. It is pretty straight forward and has proven to be accurate with sealed and ported enclosures. I'm not too sure how accurate it is with other designs.
  12. Also to note, my above volumes were assuming the port was completely internal.
  13. With that large of a port, you'll be left with like 6 cubes. Then bracing and driver displacement will probably leave you with 5.5 cubes. With the same port area and length, you would be tuned to about 29Hz. This would give you better power handling and lower port velocities but you would lose quite a bit of low end output. It falls below the larger box at about 30Hz. However, if you reduce the port area to 91in2 but retain the 40in length, you would end up to a net volume of around 6ft3. You would be tuned to ~26Hz and your port velocity would come up right below 24 m/s. Cone excursion would be at about 18mm @ 3000w. Unfortunately you would lose output below 30Hz but this might be your best be honestly.
  14. Also, why is my text being surrounded by a white block when I post?