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How To Guide How to build your own BMW Z3 Sub Woofer Box

Discussion in 'GadgetZ, GismoZ and Bling' started by Susan, Oct 14, 2014.

  1. Susan

    Susan Dedicated Member

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    Sub box

    What you will need
    • 5mm MDF board
    • 15mm MDF board (for Sub ring)
    • 20mm think EVA Foam
    • Small screws
    • Wood glue
    • Silicone sealant
    • 10mm thick Wood (for support blocks)
    • Sub carpet
    • Speaker terminal cup
    • Spray glue
    • Leather or weather proof Vinyl
    Tools you’ll need
    • Jigsaw
    • Screwdriver
    • Drill and drill bits to pre drill holes
    • Pen or pencil
    • Sandpaper
    • Staple gun and staples
    • Hacksaw blade (for cutting foam)

    Cut all pieces and pre drill all holes.

    Cut out the shape of the Speaker terminal cup in the back of “A”.
    upload_2014-10-14_21-53-59.png

    Screw 2 “H” support blocks to “B” (Fig 1)
    upload_2014-10-14_21-55-41.png
    Screw “A” “C” and “D” to the “H” support blocks (Fig2)
    upload_2014-10-14_21-56-21.png
    Screw “D” “E” & “F” to support blocks “I” to top and bottom (Fig 3)
    upload_2014-10-14_21-57-8.png
    Screw in support blocks “J” (Fig4)
    upload_2014-10-14_21-57-54.png
    Screw Support block “K” into top leaving a 5mm gap at the back and side.
    upload_2014-10-14_21-58-40.png
    Turn top over and screw Sub ring to top of Sub top.
    upload_2014-10-14_22-1-22.png
    With a hacksaw cut the foam to cover around the sub ring.
    upload_2014-10-14_22-1-50.png
    Then cover it in leather or Vinyl and staple down the edges.
    upload_2014-10-14_22-2-32.png

    upload_2014-10-14_22-2-49.png
    Fit the top on and screw into “K” on both sides.
    upload_2014-10-14_22-3-29.png
    Now turn it upside down and where “G” goes screw the support blocks “I” to the top. The silicon all the edges inside the box.
    upload_2014-10-14_22-4-1.png
    Screw “G” into place, screwing into support blocks.
    upload_2014-10-14_22-4-33.png
    Spray box with glue and cover in sub carpet. then cut hole in the carpet for the Speaker terminal cup and screw it into place.
    upload_2014-10-14_22-5-11.png
     
    #1 Susan, Oct 14, 2014
    Last edited by a moderator: Oct 14, 2014
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  2. hard top

    hard top Zorg Expert (I)
    Dutch Zeds The M44 Massive

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    Nice one @Susan I watched you making this on FB.
     
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  3. Susan

    Susan Dedicated Member

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    Thanks
    Hard Top, I enjoyed the challenge, has an awesome sound, the sub has its own amp which has taken a lot of pressure off the factory speakers. Still learning to navigate this site lol
     
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  4. hard top

    hard top Zorg Expert (I)
    Dutch Zeds The M44 Massive

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    Don't worry, you will get the hang of it.....:)
     
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  5. Cooper

    Cooper Zorg Guru (IV)
    Supporter Australian Zeds

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    Can you please post a couple of pix of the real completed box? Thanks.
     
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  6. David

    David Zorg Guru (III)
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    Hard top, are you able to link to the video?
    I'd be very interested in watching it!
    Thanks
     
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  7. TaffZee

    TaffZee Zorg Guru (V)
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    Brilliant write up Susan. Way to go...
     
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  8. GazHyde

    GazHyde The Gaz Monkey
    Staff Member Administrator Global Moderator British Zeds

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    @Susan - thanks for posting this up. I will add it to the article system as soon as I get chance to do so.

    I think he meant that he watched the progress of it, rather than there being an actual video of it happening ;) Unless I missed it of course!
     
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  9. hard top

    hard top Zorg Expert (I)
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    Hi David, Gaz is right, it was a progress thread with photos.
    @Susan might post them up, If we ask her nicely......;)

    Oh, and by the way, this is a teaser, one I nicked.....Shhhh

    [​IMG]
     
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  10. David

    David Zorg Guru (III)
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  11. hard top

    hard top Zorg Expert (I)
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    @David I have just added a pic to my post about asking Susan.
     
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  12. David

    David Zorg Guru (III)
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    Looks great! Well done @Susan
     
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  13. Susan

    Susan Dedicated Member

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    010.JPG 021.JPG
     
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  14. Susan

    Susan Dedicated Member

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    022.JPG 026.JPG
     
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  15. Susan

    Susan Dedicated Member

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    027.JPG
     

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  16. Susan

    Susan Dedicated Member

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  17. Susan

    Susan Dedicated Member

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    When completed I wasn't happy with the pulled look to the top, so I removed it and recovered the top giving it a more tailored look. This is the first sub box I have ever built. I made it out of cardboard first to get the pattern, then when I was happy with that I then cut the MDF. I found a lot of the how to build sub boxes videos on youtube to be very helpful on sealing it and covering it etc. to be honest I was surprised no one has made a how to build a sub box for the Z3, I looked high and low for a pattern for one... I then figured if I'm looking, no doubt someone else will be to, so I thought I'd put one together....I feel sure that you will improve on my pattern but at least you have a starting point..... enjoy :)
     
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  18. David Cullen

    David Cullen Zorg Legend
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    this looks great, nice work Susan ;-) but where is the location of the factory sub guys? my Zd dosent have a sub and i have loads of them lying about so may get something done about it, kinda like my top box but if its gotta go for the sake of better sounds, so be it ;-)
     
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  19. FRANKIE

    FRANKIE Zorg Guru (V)
    American Zeds The M44 Massive

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    I have a woofer and a sub woofer:
    Woofer is on the right and sub woofer is on the left: woofer and sub woofer.jpg
     
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  20. pina4greg

    pina4greg Dedicated Member
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    how do you remove the speaker box from between the roll bars? and is it a lid ?
     
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