Closed Thread
Results 1 to 6 of 6

Reload Thread: Porting this box....Help

  1. #1
    solidcrowd's Avatar
    solidcrowd is offline CarAudio.com Elite



    Join Date
    Jan 2006
    Location
    Buffalo, New York
    Age
    25
    Posts
    1,290
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Porting this box....Help

    How would i port this box and what would i need?



    Thankz



    Car: 2004 Malibu Classic
    Headunit: JVC KD-AHD69
    Frontstage: Bravox CX50Ks
    Frontstage Amp: Ecplipse EA2212
    Substage: 12" SI Mag Claw V1 (V3 soft part recone)
    Substage Amp: Cerwin Vega EXL-1200D
    Enclosure: 2.5 cuft. @ 32hz, 4" Flared Aeroport
    Wiring: KNU 4 gauge

    References: SPLaudio, 1mtx1, psychoacoustics, rpfuror, Bimma85




  2. #2
    phyphoestilic's Avatar
    phyphoestilic is offline Liquid Fire...



    Join Date
    Jul 2006
    Location
    Riverside, CA
    Age
    26
    Posts
    5,543
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Re: Porting this box....Help

    a port.



    Lexus LS400 Setup
    Eclipse CD7000 (Running Active)
    Image Dynamic OEM CX64s
    Image Dynamics NX30 Tweeters
    US Acoustic USF600 x2, USF800 x2 (Zed Audio )
    150ft+ of Rammat
    IDMax12 1.5cft. I need to cut for IB
    25 feet 1/0 Stinger Expert, 15 feet 4 Stinger Pro
    Stinger Dream Series, Knu Konceptz Krystal Series RCAs

    Ref: (Bought From)Renegadesrun, IonSQL, CrazyJoker2, Alpine CDA-9815 , FI Car Audio, yournumber1dan , B_Campbell, jacobcopeland87, mike dressure x2, James_Bang, blue200sx
    (Traded w/) Iceteebone, sxkicker89
    (Sold To): James_Bang, timbo12, gsxrjjordan
    Ebay: PhyPhoestilic (100%)

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

    Threadstarter


    Join Date
    Jan 2006
    Location
    Buffalo, New York
    Age
    25
    Posts
    1,290
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Re: Porting this box....Help

    yea how do i figure out how long or how wide of one to get



    Car: 2004 Malibu Classic
    Headunit: JVC KD-AHD69
    Frontstage: Bravox CX50Ks
    Frontstage Amp: Ecplipse EA2212
    Substage: 12" SI Mag Claw V1 (V3 soft part recone)
    Substage Amp: Cerwin Vega EXL-1200D
    Enclosure: 2.5 cuft. @ 32hz, 4" Flared Aeroport
    Wiring: KNU 4 gauge

    References: SPLaudio, 1mtx1, psychoacoustics, rpfuror, Bimma85

  4. #4
    Trixter's Avatar
    Trixter is offline Keepin it Simple



    Join Date
    Apr 2002
    Location
    Kenosha, WI
    Age
    36
    Posts
    2,608
    Post Thanks / Like
    Images
    29
    Mentioned
    0 Post(s)

    Re: Porting this box....Help

    Quote Originally Posted by solidcrowd View Post
    yea how do i figure out how long or how wide of one to get
    generally you need about 12sq" of port area for every cu'...so in your case you looking at about 55sq" of port. if you went with precision ports (flared) you could do like 3 4" ports.

    use the formula in my sig to find the length for you desired tuning.

    if your going to use round ports, divide you box by the number of ports your going to use and plug the numbers in. this length will be for each port.

    if your going to use precision ports, do the same as i said above but subtract an additional 5" and cut you center piece to this length.



    2006 Jeep Liberty
    Adire Audio, Cadence, Clarion, MB Quart

    Lv = [(14630000 x R^2) / (Fb^2 x Vb)] - 1.463R
    *Vb = vol. in cu"
    **R = sq.rt. A / Pi (for square/slot port)

  5. #5
    solidcrowd's Avatar
    solidcrowd is offline CarAudio.com Elite

    Threadstarter


    Join Date
    Jan 2006
    Location
    Buffalo, New York
    Age
    25
    Posts
    1,290
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Re: Porting this box....Help

    Quote Originally Posted by Trixter View Post
    generally you need about 12sq" of port area for every cu'...so in your case you looking at about 55sq" of port. if you went with precision ports (flared) you could do like 3 4" ports.

    use the formula in my sig to find the length for you desired tuning.

    if your going to use round ports, divide you box by the number of ports your going to use and plug the numbers in. this length will be for each port.

    if your going to use precision ports, do the same as i said above but subtract an additional 5" and cut you center piece to this length.
    Is this the same formula? http://www.the12volt.com/caraudio/boxcalcs.asp#por



    Car: 2004 Malibu Classic
    Headunit: JVC KD-AHD69
    Frontstage: Bravox CX50Ks
    Frontstage Amp: Ecplipse EA2212
    Substage: 12" SI Mag Claw V1 (V3 soft part recone)
    Substage Amp: Cerwin Vega EXL-1200D
    Enclosure: 2.5 cuft. @ 32hz, 4" Flared Aeroport
    Wiring: KNU 4 gauge

    References: SPLaudio, 1mtx1, psychoacoustics, rpfuror, Bimma85

  6. #6
    Trixter's Avatar
    Trixter is offline Keepin it Simple



    Join Date
    Apr 2002
    Location
    Kenosha, WI
    Age
    36
    Posts
    2,608
    Post Thanks / Like
    Images
    29
    Mentioned
    0 Post(s)

    Re: Porting this box....Help

    i guess so....they break down the numbers more though but you should get the same result. just remember, if the box is already built, you need to find the port length, then use that to find the port's displacement (L x W x x H make sure to count the wood that makes the port as well[don't count the 3/4" for the front of the box and if the port and box share a wall, don't count the thickness of that wall either. this was counted for by using internal measurements]). once you have the port's volume, subtract this from you initial Vb and do the calculation again. this will be your port length.

    if the port shares a wall with the box an end correction factor will be needed. this is simply adding 1/2 the port's width to it length. (take this into consideration with finding the port's displacement as mentioned above.)



    2006 Jeep Liberty
    Adire Audio, Cadence, Clarion, MB Quart

    Lv = [(14630000 x R^2) / (Fb^2 x Vb)] - 1.463R
    *Vb = vol. in cu"
    **R = sq.rt. A / Pi (for square/slot port)

Closed Thread

Posting Permissions

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