Closed Thread
Results 1 to 6 of 6

Reload Thread: Slot ports and their locations

  1. #1
    6 SPEED's Avatar
    6 SPEED is offline Junior Member



    Join Date
    Jun 2012
    Location
    SE Wi
    Posts
    11
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Slot ports and their locations

    I've got a question I've not yet found the answer to on here, though I am still looking. If this has been covered before, I do apologize.

    I drive a 98 Ford Ranger single cab, and anyone that know's these little trucks knows these things have about as much room as a bodybag. I'm planning on running a single subwoofer, and so far with my old woofer (before I roasted it out of it's box) I found that the best sound was with the sub between the seats. Otherwise it sounded muffled, muddy. So with that in mind, the next box I build for the truck will have the sub placed between the seats. In the past I've always run sealed boxes, but I'm ready to try a ported setup.

    This is the setup that will be in my Ranger


    With that setup, the sub is in the middle, the box is oriented to the drivers side, and it leaves a space on the passenger side to rack the amps, in this case I'm going to be using an Alpine MRP-M1000 (already have it) and an MRP-F300.

    What I'm wondering is with a slot port, does the slot have to blow to a full open space? In the pic above, I marked 2 areas with red. The one on the left would blow out behind the amps, the one on the right would blow out towards the edge of the driver seat. Would it be muffled if it blew towards the seat?

    Would I be better off with a round port in my case?







  2. #2
    mat3833's Avatar
    mat3833 is offline CarAudio.com Elite



    Join Date
    Mar 2008
    Location
    florida
    Posts
    1,060
    Post Thanks / Like
    Mentioned
    4 Post(s)

    Re: Slot ports and their locations

    ive always heard port aimed at the drivers' side panel gives the best output. and you generally want at least a port width of clearance. i aim for about 1.5X port width of clearance(more if im talking home theater with tuning below 25hz)

    Matt



    Star Mountain Nuthugger #5
    12" TC9 in 1.39 cubes @30hz
    Boston Acoustics GT-2300 @4 ohms bridged.

    Quote Originally Posted by double 07 View Post
    Sub cutout got a little skar on it...dad blamed round over bit bearing came flying off.......LOL.......
    Quote Originally Posted by gckless View Post
    A little Skar on it? Was it a B-stock bit?
    Refs:
    bought from Nitefury360, Tallic, SPLaudio X2
    Traded with Marleyskater420

  3. #3
    pro-rabbit's Avatar
    pro-rabbit is offline Moderator pro-rabbit is a Supporting Member of the forum!

    pro-rabbit is a Supporting Vendor of the forum!

    Join Date
    Jan 2004
    Location
    OKC, OK
    Age
    32
    Posts
    12,395
    Post Thanks / Like
    Mentioned
    374 Post(s)

    Re: Slot ports and their locations

    Personally I like port to the passenger side. Meters very well and gives a very nice response curve.




  4. #4
    6 SPEED's Avatar
    6 SPEED is offline Junior Member

    Threadstarter


    Join Date
    Jun 2012
    Location
    SE Wi
    Posts
    11
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Re: Slot ports and their locations

    Ok, a buddy of mine spent some time helping me learn Sketchup, so I was able to finish the model of the box.

    Box is modeled with the Kicker CVR 12" I have now (which has similar ported box specs to the Sundown SA-12 that I want later), the Alpine MRP-M1000 I have, and the Alpine MRP-F300 I plan to buy to run the front stage.



    With this setup, would I be better with a slot port out by the amps, or a round port through the top?




  5. #5
    tommydh's Avatar
    tommydh is offline Senior VIP Member



    Join Date
    Mar 2012
    Location
    Baltimore, MD
    Posts
    468
    Post Thanks / Like
    Images
    5
    Mentioned
    3 Post(s)

    Re: Slot ports and their locations

    Why not run the port horizontallyand have it come below the amps. almost external port style or just have the amps the 1.5 inches or so up so it will be unblocked




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

    Threadstarter


    Join Date
    Jun 2012
    Location
    SE Wi
    Posts
    11
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Re: Slot ports and their locations

    Port at the bottom would run into the sub. Also trying not to move the amps upwards, because then they start to get visible through the back window. I guess I should mention that stealth is a little bit of a goal here. The sub will have a dark grill over it to minimize visibility from the front, and with the current design the box is pretty much invisible. I'm starting to think a round port might be my only options in this truck. <sighs> If I only had an extended cab lol




Closed Thread

Similar Threads

  1. Slot port and sub distance
    By pimpnyou204 in forum Enclosure Design & Construction Help
    Replies: 2
    Last Post: 06-24-2011, 08:16 AM
  2. Slot ports and Plexi?
    By LaserRed38 in forum Enclosure Design & Construction Help
    Replies: 11
    Last Post: 03-29-2008, 08:26 PM
  3. Slot Ports and Fiberglass
    By venom107 in forum Enclosure Design & Construction Help
    Replies: 4
    Last Post: 07-29-2003, 10:47 PM
  4. Slot ports and calculating frequency____?
    By ifandorbuts in forum General Discussion
    Replies: 22
    Last Post: 06-04-2003, 11:34 AM

Posting Permissions

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