Closed Thread
Results 1 to 8 of 8

Reload Thread: 1/2 mdf

  1. #1
    hatemonger's Avatar
    hatemonger is offline funded*by*soros



    Join Date
    Mar 2006
    Location
    Denver, Co
    Age
    39
    Posts
    9,046
    Post Thanks / Like
    Images
    3
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    7 Post(s)

    1/2 mdf

    building a box for my bosses single cab truck. very little room. doing shallow mount 12's, running off of his existing sony xplod 1200 watt max amp. he won't buy a new one, so disregard the fact that sony is junk. i know. i'm figuring about 400 rms, maybe 500 if luck serves. it is a very small space and he wants to not ride the steering wheel, so the seat needs to stay back. after measuring, i discovered that i will have to use 1/2 inch mdf, and that will still put the subs magnet too close to the back wall for my taste. i'm gonna use 1/2 inch no matter what the cost. he wants it, i'll do it. i argued and tried to talk him into 6 1/2 inch subwoofers, but he won't budge. if i brace the crap out of it with some dowel rods, what can i expect in terms of sound? he's not an audiophile by any means. listens to mostly country, which is why i tried to talk him into some smaller subs. i know that using 1/2 inch would be fine with 6 1/2 inch subs, but he insists on 12 inch shallow mounts. i've never used 1/2 inch on any mobile sub box. bookshelf speakers, yes. opinions?






    2003 chevy s-10 ext. cab
    hu: jvc kd-avx1
    precision power 356cs components
    front amp: infinity 475a
    sub: diamond audio d6 10d4
    enclosure: 1.1 cubes ported tuned @ 31hz
    sub amp: JL G1700




  2. #2
    RAM_Designs's Avatar
    RAM_Designs is offline SketchUp Master



    Join Date
    Feb 2006
    Location
    Rockwall, TX
    Age
    29
    Posts
    21,044
    Post Thanks / Like
    Images
    1
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    440 Post(s)

    Re: 1/2 mdf

    for a low power, low xmax build 1/2" would work fine...I wouldn't even brace it if the box is only going to be ~14x14x6



    1,400+ designs since March 2011...
    I have my PM's turned off, please email at [email protected]

  3. #3
    Atimm693's Avatar
    Atimm693 is offline Shadetree Mechanic



    Join Date
    Nov 2006
    Location
    Up the down escalator
    Posts
    2,569
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    15 Post(s)

    Re: 1/2 mdf

    x2, if the panels are small I wouldn't worry about it.


    Just be careful to not split the wood if you use screws.



    1994 Toyota Camry
    Pioneer DEHP6400BT
    Rockford Fosgate 1050S
    12" DD 3512C
    2.5 cuft, 35hz
    1050wrms@4ohms

  4. #4
    jdc753's Avatar
    jdc753 is offline Truck Brigade



    Join Date
    Nov 2006
    Location
    Mass
    Age
    30
    Posts
    1,891
    Post Thanks / Like
    Images
    2
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    0 Post(s)

    Re: 1/2 mdf

    yea as others have said for small enclosures with low power 1/2" will suffice, specially in a truck enclosure where the panels don't have very much distance between supporting edges and such. Only the front or back would get the most flex and the front will be half sub and the back will be right up against the back wall.

    On thing I would highly recommend doing when working with 1/2" mdf is just skip screws all together and use a brad nailer. Soooo much easier, it can get quite tricky even with a solid predrill and perfect alignment on the screw to not cause at the least a bubble in the mdf near the edge.



    2005 F350 crew cab diesel 4x4
    -Work in Progress-
    HU: Alpine 9887 linked to 10.4" TS TruckPC
    Front Stage: Polk SR6500 Active
    Front Amp: Sundown Sax100.4
    Sub: Stereo Integrity Magnum V4 in the center console
    Sub amp: Sundown Saz-1500D

    Refs: low_end, Relax, SSon22s, Johnson, tyroneshoes, twisztdpunisher, flakko, djhn9, KINGDELL91, amoffitt, Justin89T, 01 S 10, Mazzasec

  5. #5
    RAM_Designs's Avatar
    RAM_Designs is offline SketchUp Master



    Join Date
    Feb 2006
    Location
    Rockwall, TX
    Age
    29
    Posts
    21,044
    Post Thanks / Like
    Images
    1
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    440 Post(s)

    Re: 1/2 mdf

    x2 on the brad nailer...



    1,400+ designs since March 2011...
    I have my PM's turned off, please email at [email protected]

  6. #6
    DidUHearThat?'s Avatar
    DidUHearThat? is offline Precious Bodily Fluids



    Join Date
    Jul 2008
    Location
    General Ripper, Base Commander
    Posts
    2,197
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    0 Post(s)

    Re: 1/2 mdf

    Double layering the face would help.



    Rockford/Denon 8250
    Hifonics NX880
    Alpine MPR450
    CDT CL61-IEK
    CDT 6X
    Elemental Designs 11kv.2
    KnuKonceptz
    Optima Yellow and Red Top
    130 Amp alternator

  7. #7
    hatemonger's Avatar
    hatemonger is offline funded*by*soros

    Threadstarter


    Join Date
    Mar 2006
    Location
    Denver, Co
    Age
    39
    Posts
    9,046
    Post Thanks / Like
    Images
    3
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    7 Post(s)

    Re: 1/2 mdf

    Quote Originally Posted by jdc753 View Post
    yea as others have said for small enclosures with low power 1/2" will suffice, specially in a truck enclosure where the panels don't have very much distance between supporting edges and such. Only the front or back would get the most flex and the front will be half sub and the back will be right up against the back wall.

    On thing I would highly recommend doing when working with 1/2" mdf is just skip screws all together and use a brad nailer. Soooo much easier, it can get quite tricky even with a solid predrill and perfect alignment on the screw to not cause at the least a bubble in the mdf near the edge.
    i thought it would be ok. i've built 150 rms home speakers from 1/2 inch and they work fine. as far as screws and nails, i never use either. clamps have worked well and i don't have to fill holes if it's being painted as opposed to carpet. this wouldn't even be an issue if i'd just learn to do fiberglass. it's about high time i learn something new anyway.






    2003 chevy s-10 ext. cab
    hu: jvc kd-avx1
    precision power 356cs components
    front amp: infinity 475a
    sub: diamond audio d6 10d4
    enclosure: 1.1 cubes ported tuned @ 31hz
    sub amp: JL G1700

  8. #8
    jdc753's Avatar
    jdc753 is offline Truck Brigade



    Join Date
    Nov 2006
    Location
    Mass
    Age
    30
    Posts
    1,891
    Post Thanks / Like
    Images
    2
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    0 Post(s)

    Re: 1/2 mdf

    Quote Originally Posted by kcdc30 View Post
    i thought it would be ok. i've built 150 rms home speakers from 1/2 inch and they work fine. as far as screws and nails, i never use either. clamps have worked well and i don't have to fill holes if it's being painted as opposed to carpet. this wouldn't even be an issue if i'd just learn to do fiberglass. it's about high time i learn something new anyway.
    Fiberglass sounds like a good idea. Take it from someone who just recently started it, its darn easy lol. Don't let it scare ya. Even using the cheap junk from Home Depot it isn't all that hard. The hardest part is the preparation and setup, but laying the mat and resin isn't so bad.



    2005 F350 crew cab diesel 4x4
    -Work in Progress-
    HU: Alpine 9887 linked to 10.4" TS TruckPC
    Front Stage: Polk SR6500 Active
    Front Amp: Sundown Sax100.4
    Sub: Stereo Integrity Magnum V4 in the center console
    Sub amp: Sundown Saz-1500D

    Refs: low_end, Relax, SSon22s, Johnson, tyroneshoes, twisztdpunisher, flakko, djhn9, KINGDELL91, amoffitt, Justin89T, 01 S 10, Mazzasec

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