+ Reply to Thread
Results 1 to 4 of 4

Reload Thread: Enclosure Design Help

  1. #1
    Manchesteruntd's Avatar
    Manchesteruntd is offline Junior Member



    Join Date
    Feb 2014
    Location
    Los Angeles
    Posts
    19
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    3 Post(s)

    Enclosure Design Help

    I Am am brand new to this site, but not new to the car audio world. Recently, I have been stumped by one of my boxes and am looking to build a new one. The box is for a smart car. I built a box for a Rockford Fosgate 8inch P2D4 and is powered by a Rockford Fosgate R500XD (image attached; the non-sketch up picture) and although the box itself turned out great, it did not perform. the enclosure itself is to speck which is why I am a bit confused. It is an up firing seal enclosure. the problem with the design is that the bass is close to inaudible when seated in the driver or passenger seat, yet, sounds great if your head if close to the windshield. Due to the side and shape of the car, the bass does not envelop the cabin.
    So! I am designing a new enclosure to solve the problem! I am up for suggestions! I have designed three enclosures on Sketch Up. Please tell me which one would be best. Each enclosure is different; from port locations, to firing position (one is down firing).

    Enclosure Design Help-261259_366847800095835_1970268902_n.jpgEnclosure Design Help-602113_366350380145577_814602426_n.jpgEnclosure Design Help-screen-shot-2014-02-05-11.02.09-pm.jpgEnclosure Design Help-screen-shot-2014-02-05-11.19.26-pm.jpgEnclosure Design Help-screen-shot-2014-02-05-11.17.55-pm.jpg







  2. #2
    Manchesteruntd's Avatar
    Manchesteruntd is offline Junior Member

    Threadstarter


    Join Date
    Feb 2014
    Location
    Los Angeles
    Posts
    19
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    3 Post(s)

    Re: Enclosure Design Help

    Anyone have any idea?




  3. #3
    VWBobby's Avatar
    VWBobby is offline PG and SS nuthugger



    Join Date
    Jul 2010
    Location
    Nibiru
    Age
    33
    Posts
    1,326
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    148 Post(s)

    Re: Enclosure Design Help

    A single 8 inch sub in a sealed box isn't going to have tremendous output to begin with, but it shouldn't be almost inaudable in a small car like that...

    Have you tried turning the box around or moving it to different areas of the trunk? It might do better loading off of a wall and firing backwards.
    Otherwise, a ported enclosure can give you at least a 6 - 10DB gain down low, if designed correctly. With cabin gain factored in, it would be significantly louder below 50hz.
    The port back, sub up design would be my choice or port up sub back.



    '65 VW Bus
    ------
    MA Hippo 122, (2) Aura Sound 8's, (2) SoundStream 6.5 coax, (2) Alpine Type-S 6x9's [rear fill], MBQ DSC1500.1D, RF 501X

    '02 BMW 330xi (AWD coupe), every option
    ------
    Harman/Kardon 12-speaker System Option + Dayton HO D4 10" and PPI Ion 650.1 in sealed box
    And many more car audio goodies in storage

  4. #4
    Manchesteruntd's Avatar
    Manchesteruntd is offline Junior Member

    Threadstarter


    Join Date
    Feb 2014
    Location
    Los Angeles
    Posts
    19
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    3 Post(s)

    Re: Enclosure Design Help

    Quote Originally Posted by VWBobby View Post
    A single 8 inch sub in a sealed box isn't going to have tremendous output to begin with, but it shouldn't be almost inaudable in a small car like that...

    Have you tried turning the box around or moving it to different areas of the trunk? It might do better loading off of a wall and firing backwards.
    Otherwise, a ported enclosure can give you at least a 6 - 10DB gain down low, if designed correctly. With cabin gain factored in, it would be significantly louder below 50hz.
    The port back, sub up design would be my choice or port up sub back.
    Unfortunately I built the box to fit perfectly (the top piece has a lip on each side to be flush against the panels) so I could see what position sounds best. I'm leaning towards port back and sub up as well. Thank you for your insight! Every bit helps!




+ Reply to Thread

Similar Threads

  1. FI 12" SSD enclosure design help
    By shellfish in forum Enclosure Design & Construction Help
    Replies: 5
    Last Post: 04-23-2008, 08:10 PM
  2. snailshell enclosure design help
    By reed dollaz in forum General Discussion
    Replies: 4
    Last Post: 07-26-2007, 01:58 AM
  3. Solo x 18 vented enclosure design help
    By SQllover in forum Enclosure Design & Construction Help
    Replies: 0
    Last Post: 02-16-2007, 09:53 PM
  4. Ported Enclosure Design Help
    By angrytrucker78 in forum Enclosure Design & Construction Help
    Replies: 6
    Last Post: 09-16-2006, 08:52 PM
  5. enclosure design help needed...
    By 32Roadster in forum Enclosure Design & Construction Help
    Replies: 2
    Last Post: 08-25-2006, 10:04 PM

User Tag List

Tags for this Thread

Posting Permissions

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