Closed Thread
Results 1 to 6 of 6

Reload Thread: Helping Calculating Box

  1. #1
    ssj92's Avatar
    ssj92 is offline Junior Member



    Join Date
    Mar 2010
    Location
    CA
    Posts
    3
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    0 Post(s)

    Helping Calculating Box

    Ok I Have two Rockford Fosgate 10" T1 subwoofers. According to their site, they need 3 cubic feet. Woofer Displacement is 0.065 cubic feet. I want to tune the box at 32hz. My car(98 BMW 323i) has very limited trunk space! Max trunk space I can use is: 36" Wide, 14.5" Tall, & 11.5" Depth. I currently have a sealed enclosure and a 600watt amp. I'm upgrading to a 1500watt amp so I was also deciding to go ported, unless the sealed enclosure would be better off, even with a 1500watt amp.

    I need the dimensions(specifically on the ports). I never made a ported enclosure before. I want two slot ports. How big should they be? Can anyone make a diagram. Should the ports be on each side or double in the middle?







  2. #2
    streetbeater07's Avatar
    streetbeater07 is offline CarAudio.com Elite



    Join Date
    Jun 2008
    Location
    Grady, AL
    Posts
    750
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    2 Post(s)

    Re: Helping Calculating Box

    you cant get 3 cubic feet out of those dimensions. Maybe you should run 1 ported..



    Head unit: Premier deh-p510ub
    Mid: Kicker......rs56.2, front, rs56.2, rear
    Mid amp: Kicker sx700.4
    Subs: (3) 12 AA Havoc D2
    Electrical:.... dual runs of 1/0 to the rear & redtop up front (3) yellowtops in rear
    Mechman 270A H.O. alt
    Refs
    Bought from: ktsstratus, onebad71, focalrock4life, SPY, Wkbdkid
    Sold to: JBLCAMRY, jbizzle, Blados, cheeseburger35, bumpingp19, boom24, vickman08, BumpinKota

  3. #3
    streetbeater07's Avatar
    streetbeater07 is offline CarAudio.com Elite



    Join Date
    Jun 2008
    Location
    Grady, AL
    Posts
    750
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    2 Post(s)

    Re: Helping Calculating Box

    you need at least 3.75 cu ft. gross INTERNAL to get the desired tuning and airspace for those woofers. 36-48 sq. in of port area. keep in mind the more port area you have, the longer the port length will have to be for a desired tuning frequency.



    Head unit: Premier deh-p510ub
    Mid: Kicker......rs56.2, front, rs56.2, rear
    Mid amp: Kicker sx700.4
    Subs: (3) 12 AA Havoc D2
    Electrical:.... dual runs of 1/0 to the rear & redtop up front (3) yellowtops in rear
    Mechman 270A H.O. alt
    Refs
    Bought from: ktsstratus, onebad71, focalrock4life, SPY, Wkbdkid
    Sold to: JBLCAMRY, jbizzle, Blados, cheeseburger35, bumpingp19, boom24, vickman08, BumpinKota

  4. #4
    ssj92's Avatar
    ssj92 is offline Junior Member

    Threadstarter


    Join Date
    Mar 2010
    Location
    CA
    Posts
    3
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    0 Post(s)

    Re: Helping Calculating Box

    If the box was 36" wide 15.5" tall and 13.5" deep, would that be enough? On rockford fosgate's site boxwizard that says the gross cubic feet is 3.35

    Also I cant really run one ported on the amp. The subs are dual 4 and my amp does 600watts @ 4ohms bridged and isnt 2 ohm stable so the output would be even less than the current two sealed setup.




  5. #5
    Buck's Avatar
    Buck is offline always low Buck is a Supporting Member of the forum!



    Join Date
    May 2008
    Location
    Nashville
    Posts
    18,378
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    970 Post(s)

    Re: Helping Calculating Box

    You don't have enough room to go ported, so I would go sealed.



    Alpine - ASE (local) - Batcap - C&D Tech - CT Sounds - DC - eD - Excessive Amperage - Rainbow

  6. #6
    ssj92's Avatar
    ssj92 is offline Junior Member

    Threadstarter


    Join Date
    Mar 2010
    Location
    CA
    Posts
    3
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    0 Post(s)

    Re: Helping Calculating Box

    Quote Originally Posted by Buck View Post
    You don't have enough room to go ported, so I would go sealed.
    Yeah i expected that. Do you think the subs would be fine in the sealed box running @1500watts without the speajer getting too hot, that was the main reason i was thinking of going portee




Closed Thread

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