Closed Thread
Page 1 of 2 1 2 LastLast
Results 1 to 15 of 24

Reload Thread: how to determine tuning

  1. #1
    Join Date
    Mar 2006
    Location
    Tampa, FL
    Posts
    3,368
    Post Thanks / Like
    Mentioned
    0 Post(s)

    how to determine tuning

    what all do i have to measure and take into consideration to figure out the tuning of my wall? when robin designed it, i think it was tuned @ 33 and then we had to take 1.5" off the top, plus sub displacment and the bracing inside we did. im just curious as to how to figure out the most accurate estimate of my tuning....all the internal bracing is done, all i have to do is resin the corners. my mts have a displacment of .21 cu ft each, so thats .84 cu ft right there from the subs....

    someone tell me how to do this







  2. #2
    pimpedout97x's Avatar
    pimpedout97x is offline Banned

    Threadstarter


    Join Date
    Mar 2006
    Location
    Tampa, FL
    Posts
    3,368
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Re: how to determine tuning

    come on someone knows lol




  3. #3
    pimpedout97x's Avatar
    pimpedout97x is offline Banned

    Threadstarter


    Join Date
    Mar 2006
    Location
    Tampa, FL
    Posts
    3,368
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Re: how to determine tuning

    Currently Active Users Viewing This Thread: 2 (2 members and 0 guests)
    pimpedout97x , vetkilr

    lol im a post *****




  4. #4
    vetkilr's Avatar
    vetkilr is offline CarAudio.com Veteran



    Join Date
    Mar 2006
    Location
    brandon,fl
    Posts
    3,329
    Post Thanks / Like
    Mentioned
    1 Post(s)

    Re: how to determine tuning

    Quote Originally Posted by pimpedout97x View Post
    Currently Active Users Viewing This Thread: 2 (2 members and 0 guests)
    pimpedout97x , vetkilr

    lol im a post *****
    lol



    refs:Flakko,saywhat,mmata13(sold 1605D amp),nVRuckus(bought fuse blocks), dkguitarist(traded 2 amps),MikeyB(sold MD2),CBFryman2(sold MD2),gundecker (bought 20.1),Sakura (2 Trades),killahbean (bought DMX12),Loud3(Bought Fiberglass Kicks),tb2007(sold diamond amp),iamamp3pimp(bought box's 3 so far /sold 20.1/sold 2 L7s,ZX650.4),chillcat34433(bought 12"RF HX2), ultimate157(sold opti 2000D),bballrrt06(sold opti 2000D),GrnEydDvl(sold kx2500.1),BassAddictJ (sold kx2500.1),pwuthedon(bought Lanzar 4000D)

    lostsoul (5.25 mtx comps) Bad once I hooked them up.....................

  5. #5
    vetkilr's Avatar
    vetkilr is offline CarAudio.com Veteran



    Join Date
    Mar 2006
    Location
    brandon,fl
    Posts
    3,329
    Post Thanks / Like
    Mentioned
    1 Post(s)

    Re: how to determine tuning

    Currently Active Users Viewing This Thread: 1 (1 members and 0 guests)
    vetkilr


    me too.......



    refs:Flakko,saywhat,mmata13(sold 1605D amp),nVRuckus(bought fuse blocks), dkguitarist(traded 2 amps),MikeyB(sold MD2),CBFryman2(sold MD2),gundecker (bought 20.1),Sakura (2 Trades),killahbean (bought DMX12),Loud3(Bought Fiberglass Kicks),tb2007(sold diamond amp),iamamp3pimp(bought box's 3 so far /sold 20.1/sold 2 L7s,ZX650.4),chillcat34433(bought 12"RF HX2), ultimate157(sold opti 2000D),bballrrt06(sold opti 2000D),GrnEydDvl(sold kx2500.1),BassAddictJ (sold kx2500.1),pwuthedon(bought Lanzar 4000D)

    lostsoul (5.25 mtx comps) Bad once I hooked them up.....................

  6. #6
    pimpedout97x's Avatar
    pimpedout97x is offline Banned

    Threadstarter


    Join Date
    Mar 2006
    Location
    Tampa, FL
    Posts
    3,368
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Re: how to determine tuning

    that was a waste of 2 posts in my thread and you didnt help me *****!!!!!!!!!!!!!111!!11!!1one111!!1eleven!11111! !!




  7. #7
    j3bus2k3's Avatar
    j3bus2k3 is offline Si vis pacem, para bellum



    Join Date
    Aug 2004
    Location
    St. Pete, FL
    Posts
    6,276
    Post Thanks / Like
    Images
    11
    Mentioned
    0 Post(s)

    Re: how to determine tuning

    Measure your gross volume, internal heigh, width and depth...then subtract your port displacment as well as your driver displacment. That will give you net. Then use this forumla to determine your tuning.



    AIM: SPL Performance1
    /////Alpine 9835
    Active Processing via Coustic XM7
    Dayton 7" Mid-woofer with Seas Neo Tweet
    JBL/Crown 1100 & Power 300.4
    12" TC3000 Based Custom in 2.25ft^3 at 32hz

    Wallet say But I say


    References:Moe Lester, PV Audio, sss18734, DJ-Torn, dleccord, jiggy2dmax, Negativezeroz, Bama350z, TeamPSI, dB Dom, Kenny Pollock, Flossinon24s, Patfitz9 (x2), AppleBonker, BassAddictJ, the727kid, skadude016, CaliKid, Thumper88, Djman37, TeamQuakeCelica, Cerob, Pimpedout97x, Troy_Audi0, got_focus?, Karleon, Jamaica2G, rtillare, dumple, JohnnyBusa, mattmcss, whitem1ke88, nineball

  8. #8
    saywhat?'s Avatar
    saywhat? is offline satx120, jealous?



    Join Date
    Apr 2004
    Location
    H'Burg Mississippi!
    Age
    27
    Posts
    11,175
    Post Thanks / Like
    Images
    10
    Mentioned
    0 Post(s)

    Re: how to determine tuning

    shouldnt too much higher. if anything lowering the port area lowered the tuning, and the sub displacement put it back around what you had.

    less port area = shorter port. so keeping the same length, lowered your tuning, and made your box bigger by taking off that couple inches, but, you then put your subs in, which made up for lost room. shouldnt have fluctuated much, if any.




  9. #9
    pimpedout97x's Avatar
    pimpedout97x is offline Banned

    Threadstarter


    Join Date
    Mar 2006
    Location
    Tampa, FL
    Posts
    3,368
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Re: how to determine tuning

    would displacment from the bracing effect it as well?

    that forumula looks confusing as hell!




  10. #10
    j3bus2k3's Avatar
    j3bus2k3 is offline Si vis pacem, para bellum



    Join Date
    Aug 2004
    Location
    St. Pete, FL
    Posts
    6,276
    Post Thanks / Like
    Images
    11
    Mentioned
    0 Post(s)

    Re: how to determine tuning

    Quote Originally Posted by pimpedout97x View Post
    would displacment from the bracing effect it as well?

    that forumula looks confusing as hell!
    Yes, you need to subtract ALL displacments as they will affect the net tuning. Its actually very simple. Imagine having your tuning and needing to find Lv...thats what I deal with everytime I design a box for a friend. TI-83 FTW!!!

    If you want...just post the numbers here and I'll crank it out in a minute or two. Just need internal width, height and depth; Port width, height and depth; And the width, height and length on any and all brace pieces...



    AIM: SPL Performance1
    /////Alpine 9835
    Active Processing via Coustic XM7
    Dayton 7" Mid-woofer with Seas Neo Tweet
    JBL/Crown 1100 & Power 300.4
    12" TC3000 Based Custom in 2.25ft^3 at 32hz

    Wallet say But I say


    References:Moe Lester, PV Audio, sss18734, DJ-Torn, dleccord, jiggy2dmax, Negativezeroz, Bama350z, TeamPSI, dB Dom, Kenny Pollock, Flossinon24s, Patfitz9 (x2), AppleBonker, BassAddictJ, the727kid, skadude016, CaliKid, Thumper88, Djman37, TeamQuakeCelica, Cerob, Pimpedout97x, Troy_Audi0, got_focus?, Karleon, Jamaica2G, rtillare, dumple, JohnnyBusa, mattmcss, whitem1ke88, nineball

  11. #11
    pimpedout97x's Avatar
    pimpedout97x is offline Banned

    Threadstarter


    Join Date
    Mar 2006
    Location
    Tampa, FL
    Posts
    3,368
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Re: how to determine tuning

    i have a fwe TI-83+s lol...ill measure tonite and post them up, but if you dont mind, explain to me with the number i post on how to do it, so next time i know

    but im off at 930 tonight, so ill measure when i get home.




  12. #12
    j3bus2k3's Avatar
    j3bus2k3 is offline Si vis pacem, para bellum



    Join Date
    Aug 2004
    Location
    St. Pete, FL
    Posts
    6,276
    Post Thanks / Like
    Images
    11
    Mentioned
    0 Post(s)

    Re: how to determine tuning

    Quote Originally Posted by pimpedout97x View Post
    i have a fwe TI-83+s lol...ill measure tonite and post them up, but if you dont mind, explain to me with the number i post on how to do it, so next time i know

    but im off at 930 tonight, so ill measure when i get home.
    Nots a problem...I may be out tonight but if I see it before I leave, I'll do some number crunching...I'm a math nerd, what can I say...



    AIM: SPL Performance1
    /////Alpine 9835
    Active Processing via Coustic XM7
    Dayton 7" Mid-woofer with Seas Neo Tweet
    JBL/Crown 1100 & Power 300.4
    12" TC3000 Based Custom in 2.25ft^3 at 32hz

    Wallet say But I say


    References:Moe Lester, PV Audio, sss18734, DJ-Torn, dleccord, jiggy2dmax, Negativezeroz, Bama350z, TeamPSI, dB Dom, Kenny Pollock, Flossinon24s, Patfitz9 (x2), AppleBonker, BassAddictJ, the727kid, skadude016, CaliKid, Thumper88, Djman37, TeamQuakeCelica, Cerob, Pimpedout97x, Troy_Audi0, got_focus?, Karleon, Jamaica2G, rtillare, dumple, JohnnyBusa, mattmcss, whitem1ke88, nineball

  13. #13
    pimpedout97x's Avatar
    pimpedout97x is offline Banned

    Threadstarter


    Join Date
    Mar 2006
    Location
    Tampa, FL
    Posts
    3,368
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Re: how to determine tuning

    cool!




  14. #14
    Hintzyboy's Avatar
    Hintzyboy is offline Sparks mean its working!



    Join Date
    Feb 2006
    Location
    Baraboo, WI
    Posts
    7,536
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Re: how to determine tuning

    Meh to the TI-83. TI-89 Titanium FTW. That little baby made clac classes SO easy.



    Refs:
    CarAudio.com: SlickRick, CubanAffection, trevor87, BigBirney420, Apollyon, Dinty01, TeamPSI, QtrHorse (x2), 6spdcoupe, Siddle, Smokingachicken, MisterGrubbs, Fast1One, MiniVanMan(x2), Jntar, blackbonnie, tigerf117, kasimo420, blaze383, XaznKewLguyX, SRim23, RidnClean, Team H&K, djvi0lent, jeeper07, turboaudi
    DIYMA: snaimpally
    CA.com Feedback: http://www.caraudio.com/forum/showthread.php?t=327860
    Ebay Feedback http://feedback.ebay.com/ws/eBayISAPI.dll?ViewFeedback&userid=hintzyboy79

  15. #15
    xluben's Avatar
    xluben is offline CarAudio.com Veteran



    Join Date
    Jun 2006
    Location
    Minneapolis, MN
    Posts
    2,129
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Re: how to determine tuning

    Quote Originally Posted by Hintzyboy View Post
    Meh to the TI-83. TI-89 Titanium FTW. That little baby made clac classes SO easy.
    calc I and II, yes

    lin alg & diff eq and multivariable, not so much

    but i do love how it can keep track of units for me!

    and can store notes from word pad

    and the millions of other ways it helps me




Closed Thread
Page 1 of 2 1 2 LastLast

Posting Permissions

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