Closed Thread
Page 1 of 2 1 2 LastLast
Results 1 to 15 of 16

Reload Thread: Ext cab, under seat spl? Critique my design.

  1. #1
    jake21's Avatar
    jake21 is offline Lifted > Lowered



    Join Date
    Mar 2008
    Location
    Bozeman, MT
    Age
    24
    Posts
    349
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Ext cab, under seat spl? Critique my design.

    Ok my mission is to fit two 12" type r's (yes, i know.... type r's, its the main brand i sell at my shop) underneath of my rear seat in my 03 silverado. I want to keep the back seat but still be able to throw up some decent numbers. Im not looking to hit 150 or anything like that lol, id like to at least be around the 138-141 range,

    anyways the arghsss will be ran off Alpine's M2000 (2000wrms @ 2) and here is a quick design i threw up in google sketchup, im looking at about 3.5-4cft after displacment.

    Trying to use an 8" aero, but might have to resort to a 6"...

    Oh and btw i will be making a new seat all together with the box being part of the seat.

    Subs downfire in a "sorta" clamshell design with the port to the drivers side.





    Loud? Not Loud? Average? Funky Pup?







  2. #2
    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
    373 Post(s)

    Re: Ext cab, under seat spl? Critique my design.

    Interesting idea, I would be curious to see how the subs load in that design. I would try to get around 4ft3 net and a 6" port would be fine, I think with an 8" the length and the overall size might be more of an issue.




  3. Thanks jake21 thanked for this post
  4. #3
    jake21's Avatar
    jake21 is offline Lifted > Lowered

    Threadstarter


    Join Date
    Mar 2008
    Location
    Bozeman, MT
    Age
    24
    Posts
    349
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Re: Ext cab, under seat spl? Critique my design.

    Quote Originally Posted by pro-rabbit View Post
    Interesting idea, I would be curious to see how the subs load in that design. I would try to get around 4ft3 net and a 6" port would be fine, I think with an 8" the length and the overall size might be more of an issue.
    One thing i forgot to mention, the box will also be designed around a interchangable aeroport so i can tune it down to around 33hz for daily driving (as its my daily driver) and then ill shorten it up for comps. Anyways, 4cft will be ideal if i can squeeze it out of the space i have, the type r's dont sound half bad at 33hz in 4cft either.

    My one worry is loading, just like you said, the hump, i believe i can get rid of it if need be and raise the box up a bit on that end. Ill post a new revised pic in a few mins




  5. #4
    dbjunior's Avatar
    dbjunior is offline CarAudio.com Elite



    Join Date
    Jun 2009
    Location
    ma
    Posts
    733
    Post Thanks / Like
    Mentioned
    1 Post(s)

    Re: Ext cab, under seat spl? Critique my design.

    The small clam shell will work great it will create a similar effect to a sixth order bandpass the tuning you use on the box itself will tend to be real peaky so you should do well for your goal and get great lowend tuned to 33



    bought from MBROOKY, johnny law.Lulz, subzero, tc3k101
    sold to mytrunkslamz , vitveet, cd6551, martiandancer31 (x2), pro-rabbit, whytellyou
    Trade with cf2004

  6. Thanks jake21 thanked for this post
  7. #5
    jake21's Avatar
    jake21 is offline Lifted > Lowered

    Threadstarter


    Join Date
    Mar 2008
    Location
    Bozeman, MT
    Age
    24
    Posts
    349
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Re: Ext cab, under seat spl? Critique my design.

    Alright here are some revised ones, this is with it raised off the ground 5 inches (how tall the hump is in the center of the truck)







  8. #6
    dbjunior's Avatar
    dbjunior is offline CarAudio.com Elite



    Join Date
    Jun 2009
    Location
    ma
    Posts
    733
    Post Thanks / Like
    Mentioned
    1 Post(s)

    Re: Ext cab, under seat spl? Critique my design.

    Id say the first would be louder but you will get a smoother response with the second



    bought from MBROOKY, johnny law.Lulz, subzero, tc3k101
    sold to mytrunkslamz , vitveet, cd6551, martiandancer31 (x2), pro-rabbit, whytellyou
    Trade with cf2004

  9. #7
    jake21's Avatar
    jake21 is offline Lifted > Lowered

    Threadstarter


    Join Date
    Mar 2008
    Location
    Bozeman, MT
    Age
    24
    Posts
    349
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Re: Ext cab, under seat spl? Critique my design.

    Threw in some supports. Still looking decent?






  10. #8
    jake21's Avatar
    jake21 is offline Lifted > Lowered

    Threadstarter


    Join Date
    Mar 2008
    Location
    Bozeman, MT
    Age
    24
    Posts
    349
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Re: Ext cab, under seat spl? Critique my design.

    And one last design, which one will be best overall for my goals? SPL and SQ with interchangeable port.









  11. #9
    Louisiana_CRX's Avatar
    Louisiana_CRX is offline dem shoes......



    Join Date
    Aug 2006
    Location
    Piney Hills of Louisiana
    Posts
    34,152
    Post Thanks / Like
    Images
    9
    Mentioned
    31 Post(s)

    Re: Ext cab, under seat spl? Critique my design.

    Id just say fvck it and remove the back seat and do it right, do it big.....




    Current 2010 Louisiana USACi State Records :

    Trunk 0-1000.................. 151.3
    StreetBeat 2................... 145.6
    Stock 1801-up.................153.8
    SuperStock 1801-up..........154.2
    Top three in 11 out of 26 power classes and Louisiana USACi Points Leader at 465

  12. #10
    jake21's Avatar
    jake21 is offline Lifted > Lowered

    Threadstarter


    Join Date
    Mar 2008
    Location
    Bozeman, MT
    Age
    24
    Posts
    349
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Re: Ext cab, under seat spl? Critique my design.

    my guess is the last one, fewest flow restrictions




  13. #11
    jake21's Avatar
    jake21 is offline Lifted > Lowered

    Threadstarter


    Join Date
    Mar 2008
    Location
    Bozeman, MT
    Age
    24
    Posts
    349
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Re: Ext cab, under seat spl? Critique my design.

    Quote Originally Posted by Louisiana_CRX View Post
    Id just say fvck it and remove the back seat and do it right, do it big.....
    love too.... cant tho, need the back seat. i use it almost everyday. thats also one of my goals is to be slightly competitive while keeping a somewhat-stock appearance




  14. #12
    DMT Allstar's Avatar
    DMT Allstar is offline Junior Member



    Join Date
    Aug 2011
    Location
    Little Rock, Ar
    Posts
    18
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Re: Ext cab, under seat spl? Critique my design.

    if i could make a small suggestion, why not build the box up in the design that you have here but where the hump in the floor starts on the side next to the sub, fiberglass the rest of the bottom all the way over to the port side. you would be able to gain a little bit more airspace and it would fit better over the hump and on the rest of the floor while maintaining the structural integrity of the inclosure. just some food for thought. i like the design of the enclosure and the idea of the interchangeable port. very cool!




  15. #13
    Trancer's Avatar
    Trancer is offline CarAudio.com Veteran



    Join Date
    Aug 2002
    Location
    Allen, Texas
    Age
    28
    Posts
    2,707
    Post Thanks / Like
    Images
    3
    Mentioned
    3 Post(s)

    Re: Ext cab, under seat spl? Critique my design.

    Out of my experiences with the newer Type R's, they really like a lower tuning. I know you are going with interchangeable ports, but I think you will like the lower tuned port and wouldnt go back to the higher tuned port. I was running my two Type R 12's at 34 hz and then build a box at 31 hrz and the difference was very noticeable. They really hung on to those lows really well and honestly, it was louder with the 31hz build. The box was the same, just tuned it lower.

    So my recommendation with the two ports is to have two aero ports, one at 31 hz and one at the 34 hz. I think you would really like the 31hz port.



    07 black Yamaha V-Star FI 1300. 08 GMC Sierra QC SLE2 Texas Edition
    Rockford Fosgate 3Sixty.1, Focal Utopia Components, Focal K2P Components with Digital Designs T1 Tweeters, Audiopipe AQX-360.4, Audiopipe 3001D
    References: 21: DesertHeat, Ravens9322, Netherland24, Insomniac119, killahbean, Charlieee, Dustin19, djman37, dirthog, JayRich, JimJ, RassyMX, Slayerx, smgreen20, lyttleviet, RAM_Designs, Gingerbreadman, DarkHart, cwill5, Imtjnotu, Bettr n' Revrse

    Quote Originally Posted by GeekSquad View Post
    Make the port as large and as round as possible. For example, a square port is more round than a rectangular one; an octogonal port is more round than a square port. Also, keep the number of ports down to one, if possible.

  16. #14
    audiobaun's Avatar
    audiobaun is offline Premium Member audiobaun is a Supporting Member of the forum!



    Join Date
    Jun 2011
    Location
    rockwall,Tx
    Posts
    6,558
    Post Thanks / Like
    Mentioned
    46 Post(s)

    Re: Ext cab, under seat spl? Critique my design.

    At the time I installed a pair of subs under my seat in a 98 xcab, I ended up raising up the seat approx 4in, to get some space, welded theangleIron, ect, and worked just fine to get more than what I needed, and was still functional for passangers




  17. #15
    Trancer's Avatar
    Trancer is offline CarAudio.com Veteran



    Join Date
    Aug 2002
    Location
    Allen, Texas
    Age
    28
    Posts
    2,707
    Post Thanks / Like
    Images
    3
    Mentioned
    3 Post(s)

    Re: Ext cab, under seat spl? Critique my design.

    Just noticed this thread is a few months old. Woops



    07 black Yamaha V-Star FI 1300. 08 GMC Sierra QC SLE2 Texas Edition
    Rockford Fosgate 3Sixty.1, Focal Utopia Components, Focal K2P Components with Digital Designs T1 Tweeters, Audiopipe AQX-360.4, Audiopipe 3001D
    References: 21: DesertHeat, Ravens9322, Netherland24, Insomniac119, killahbean, Charlieee, Dustin19, djman37, dirthog, JayRich, JimJ, RassyMX, Slayerx, smgreen20, lyttleviet, RAM_Designs, Gingerbreadman, DarkHart, cwill5, Imtjnotu, Bettr n' Revrse

    Quote Originally Posted by GeekSquad View Post
    Make the port as large and as round as possible. For example, a square port is more round than a rectangular one; an octogonal port is more round than a square port. Also, keep the number of ports down to one, if possible.

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