Closed Thread
Results 1 to 13 of 13

Reload Thread: New here: need help with vented enclosure

  1. #1
    Bill T.'s Avatar
    Bill T. is offline Senior VIP Member



    Join Date
    Jan 2004
    Location
    Wyoming
    Posts
    320
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    0 Post(s)

    New here: need help with vented enclosure

    Hi all,

    Living in a state where car audio is almost unheard of, I ventured out in the net to find parts for my Jetta Wagon.

    So far, Ive replaced the factory equipment with Focal V2 in the front and rear, powered by a JL Audio 300/4. It sounds very clear ad crisp, but I want some bass now.

    After reading a few threads, I noticed a lot of people liked the Resonant Engineering XXX subwoofers. I searched various things on the net about the XXX subwoofers and have come to the conclusion, thats the subwoofer I want.

    Ive never built a box before. And I need help. Ive tried to use WINisd but I dont understand it.

    Is anyone willing to draw up a vented enclosure sufficient for this subwoofer? Im planning to get a 15".

    Thank you very much,

    Bill T.

    ps. will the JL Audio 1000/1 suffice? Thanks.







  2. #2
    Bill T.'s Avatar
    Bill T. is offline Senior VIP Member

    Threadstarter


    Join Date
    Jan 2004
    Location
    Wyoming
    Posts
    320
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    0 Post(s)

    Re: New here: need help with vented enclosure

    Sorry, forgot measurements.

    Width 40"
    Height 16"
    Depth 16"

    Thanks,

    Bill T.




  3. #3
    runningame21's Avatar
    runningame21 is offline beyond recognition



    Join Date
    Jan 2004
    Location
    Albuquerque, NM
    Age
    32
    Posts
    68
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    0 Post(s)

    Re: New here: need help with vented enclosure

    What kind of music do you listen to? Do you know what frquency you want the box tuned to? I'll be happy to design on for you. Is it one or two subs? Thickness of MDF you want? Let me know.




  4. #4
    Bill T.'s Avatar
    Bill T. is offline Senior VIP Member

    Threadstarter


    Join Date
    Jan 2004
    Location
    Wyoming
    Posts
    320
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    0 Post(s)

    Re: New here: need help with vented enclosure

    I listen to everything. So Id like it to be versatile.

    I was thinking 35Hz (per Resonant's specs). It will be a single 15" and after reading some about boxes, 3/4" around, with a double layer on the face.

    Thanks,

    Bill T.




  5. #5
    runningame21's Avatar
    runningame21 is offline beyond recognition



    Join Date
    Jan 2004
    Location
    Albuquerque, NM
    Age
    32
    Posts
    68
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    0 Post(s)

    Re: New here: need help with vented enclosure

    ok, do you want one or two vents, and which side of the box ist the sub mounted to. The 40" side or the 16" side. It'll be a tight fit on the 16" side, but it will fit. Im thinking it'll be better on the 40" side with two vents, one on each side of the same 40" side that the woofer is on.




  6. #6
    nosaj070's Avatar
    nosaj070 is offline CarAudio.com Veteran



    Join Date
    Feb 2003
    Location
    Chicago, IL
    Age
    29
    Posts
    2,393
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    0 Post(s)

    Re: New here: need help with vented enclosure

    I would recomend tuning a bit lower than that, try atleast under 32, more like 28 or so, especially because you are listening to all types of music. Also, im not sure that the 1100 watts that amp puts out will really fully satisfy the xxx. You probably want around 1500 or so going to it.



    Alpine CDA-7995, A/D/S 3 Series Comps, ED 8A, SoundStream Reference 604, 98 Civic Sedan
    AIM: nosaj070

  7. #7
    runningame21's Avatar
    runningame21 is offline beyond recognition



    Join Date
    Jan 2004
    Location
    Albuquerque, NM
    Age
    32
    Posts
    68
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    0 Post(s)

    Re: New here: need help with vented enclosure

    kinda like this
    Attached Thumbnails Attached Thumbnails New here: need help with vented enclosure-15box.jpg  




  8. #8
    Bill T.'s Avatar
    Bill T. is offline Senior VIP Member

    Threadstarter


    Join Date
    Jan 2004
    Location
    Wyoming
    Posts
    320
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    0 Post(s)

    Re: New here: need help with vented enclosure

    Yes, the woofer will be on the 40" side.

    As for tuning and ports, Resonant recommends 35Hz and 1 port. If it doesnt make a difference, then whatever works best.

    Im running 1/0 awg in the car, so I will be adding another 1000/1 down the road.

    Thanks,

    Bill T.




  9. #9
    runningame21's Avatar
    runningame21 is offline beyond recognition



    Join Date
    Jan 2004
    Location
    Albuquerque, NM
    Age
    32
    Posts
    68
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    0 Post(s)

    Re: New here: need help with vented enclosure

    Ok, check this out. This is tuned to a perfect 28.3Hz, but I had to make the box 38.25" long instead of 40". It works best that way. The box is 16x16x38.25, and has a double layered front. All 3/4" MDF. I'll have a rendition of the front up in a minute.
    Attached Thumbnails Attached Thumbnails New here: need help with vented enclosure-15boxsmall.jpg  




  10. #10
    runningame21's Avatar
    runningame21 is offline beyond recognition



    Join Date
    Jan 2004
    Location
    Albuquerque, NM
    Age
    32
    Posts
    68
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    0 Post(s)

    Re: New here: need help with vented enclosure

    The front. Quite beautiful if you ask me.
    Attached Thumbnails Attached Thumbnails New here: need help with vented enclosure-15boxfrnt.jpg  




  11. #11
    runningame21's Avatar
    runningame21 is offline beyond recognition



    Join Date
    Jan 2004
    Location
    Albuquerque, NM
    Age
    32
    Posts
    68
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    0 Post(s)

    Re: New here: need help with vented enclosure

    here is the exact gain output chart for this box. The -3db is at 32.5Hz. The box ends up bieng 2.731ft^3. This sub needs a lot of box volume to play low. If you can make the box bigger, if it will fit, it can play lower notes.
    Attached Thumbnails Attached Thumbnails New here: need help with vented enclosure-gain-chart15xxx.jpg  




  12. #12
    Bill T.'s Avatar
    Bill T. is offline Senior VIP Member

    Threadstarter


    Join Date
    Jan 2004
    Location
    Wyoming
    Posts
    320
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    0 Post(s)

    Re: New here: need help with vented enclosure

    I may have to re-measure my trunk. There isnt a big enough gain to even consider vented.

    I will let you know tomorrow. Thanks for the drawing though.

    Bill T.




  13. #13
    runningame21's Avatar
    runningame21 is offline beyond recognition



    Join Date
    Jan 2004
    Location
    Albuquerque, NM
    Age
    32
    Posts
    68
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    0 Post(s)

    Re: New here: need help with vented enclosure

    Sorry, I mustve been calculating in a hurry. I was slightly off. I made slight redesigns to the box. It is now 40x16x16, and the ports are 3" instead of 2". The volume of he box is 3.56ft^3, and is now tuned to 30.85Hz. I understand you were considering sealed because of the gain? Well, here is a gain chart. It speaks for itself. The darker line is the gainin a sealed box, the lighter line is the vented box.
    Attached Thumbnails Attached Thumbnails New here: need help with vented enclosure-xxx15comparison.jpg  
    Attached Files




Closed Thread

Similar Threads

  1. Enclosure Vs. Bandpass Enclosure?
    By BigPanch in forum Enclosure Design & Construction Help
    Replies: 32
    Last Post: 03-07-2007, 12:01 PM
  2. Sound Quality: The Sealed/Ported misconception
    By Below 30 in forum General Discussion
    Replies: 230
    Last Post: 02-28-2004, 05:15 PM
  3. benifits for polyfill in vented enclosure
    By adammk5 in forum Subwoofers
    Replies: 2
    Last Post: 12-25-2003, 05:40 PM
  4. sick a$$ enclosure idea
    By nismboy6986 in forum Enclosure Design & Construction Help
    Replies: 7
    Last Post: 10-11-2003, 08:17 PM
  5. vented enclosure
    By so n so chicago in forum General Discussion
    Replies: 2
    Last Post: 08-16-2003, 01:54 AM

User Tag List

Posting Permissions

  • You may not post new threads
  • You may post replies
  • You may post attachments
  • You may edit your posts
1e2 Forum