Closed Thread
Results 1 to 14 of 14

Reload Thread: Building a sealed box

  1. #1
    joeldirt's Avatar
    joeldirt is offline Integrity



    Join Date
    Dec 2004
    Location
    Eureka, CA
    Age
    33
    Posts
    467
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Icon32 Building a sealed box

    I just wnated to share a bit with how I assemble my boxes. I am actually curious if I am the only one that does this. I am not going to get into calculating box volume, just how I construct it. I hear that rigidity, and strength are very important in any enclosure. Also, integrity as far as "air tight" goes is also important. So, I figure this step just makes sence if you are gona build your own box, you obviously have the access to the tools. By making the box fit together like a puzzel, where the walls actually fit into grooves, liberally apllying glue (I use tougher then nails. it comes in a caulking tube... badd ***!) in those joints, it is virtually impossible for any air ever to escape. Not only that but the strength and rigity allow you have basically an indestructible box. Generally people just butt the ends of the boards together, glue them and nail or screw them, then add a bead of caulking on the inside. Yeah you could achieve an air tight box, but I am serious about how much more strength you get out of these joints. For high powered subs I would def add this step into building it. If you are going to go the extra mile to buy nice components, go the extra mile with the box, you will achieve a more quality built box tough as hell not to mention the sound quality. Some peopl will say this is not necesary..... Its not however try it and you would notice a difference. Tell me what you all think.







  2. #2
    supa_c's Avatar
    supa_c is offline Abministrator



    Join Date
    Apr 2004
    Location
    In a chair
    Posts
    19,367
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Re: Building a sealed box

    Not everyone has a dato blade in there tool box.
    And changing them isnt easy




  3. #3
    joeldirt's Avatar
    joeldirt is offline Integrity

    Threadstarter


    Join Date
    Dec 2004
    Location
    Eureka, CA
    Age
    33
    Posts
    467
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Re: Building a sealed box

    I actually use my router for all of the joints. It works well. you can actually do this all with a skill saw and a router if you had to. I know I have had to due to lack of access to the shop. It really isnt that hard, and you know changing bitrs. it takes a total of 1 minute. This stepp all in all is adding more time..... But it's worth it.




  4. #4
    supa_c's Avatar
    supa_c is offline Abministrator



    Join Date
    Apr 2004
    Location
    In a chair
    Posts
    19,367
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Re: Building a sealed box

    Ohhh...
    Well, then i need a router !
    P.S
    i knew a router could do that, i just wasnt thinking




  5. #5
    DBfan187's Avatar
    DBfan187 is offline Supa's mom was here!



    Join Date
    Jan 2003
    Location
    Poolside with Supa's mom.
    Posts
    46,452
    Post Thanks / Like
    Images
    12
    Mentioned
    1 Post(s)

    Re: Building a sealed box

    I use resin.




  6. #6
    joeldirt's Avatar
    joeldirt is offline Integrity

    Threadstarter


    Join Date
    Dec 2004
    Location
    Eureka, CA
    Age
    33
    Posts
    467
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Re: Building a sealed box

    doesnt that make for an extreamly heavy box?




  7. #7
    supa_c's Avatar
    supa_c is offline Abministrator



    Join Date
    Apr 2004
    Location
    In a chair
    Posts
    19,367
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Re: Building a sealed box

    Quote Originally Posted by Jmac
    I use two layers of 1" MDF ...
    must be some heavy SOB's then




  8. #8
    joeldirt's Avatar
    joeldirt is offline Integrity

    Threadstarter


    Join Date
    Dec 2004
    Location
    Eureka, CA
    Age
    33
    Posts
    467
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Re: Building a sealed box

    also, for low powered subs (500 rms or less) wouldnt that absorb the bass.




  9. #9
    amedeuce's Avatar
    amedeuce is offline :crap:



    Join Date
    Jan 2004
    Location
    CA
    Posts
    1,759
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Re: Building a sealed box

    I think if you use dados throughout the assembly of the enclosure it will require less bracing.
    And changing dado blades in my table saw takes me like 2 mins. max. You can also use a router do cut dados.
    dados not only makes the box stronger but give it more glueing area/which does make it stronger
    You just have to take into account the area you lose by dadoing.




  10. #10
    joeldirt's Avatar
    joeldirt is offline Integrity

    Threadstarter


    Join Date
    Dec 2004
    Location
    Eureka, CA
    Age
    33
    Posts
    467
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Re: Building a sealed box

    Quote Originally Posted by ameduece
    I think if you use dados throughout the assembly of the enclosure it will require less bracing.
    And changing dado blades in my table saw takes me like 2 mins. max. You can also use a router do cut dados.
    dados not only makes the box stronger but give it more glueing area/which does make it stronger
    You just have to take into account the area you lose by dadoing.
    Right. I know it takes a bit more time to actually put into the construction of the box, however I believe its worth it.




  11. #11
    joeldirt's Avatar
    joeldirt is offline Integrity

    Threadstarter


    Join Date
    Dec 2004
    Location
    Eureka, CA
    Age
    33
    Posts
    467
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Re: Building a sealed box

    Quote Originally Posted by DBfan187
    I use resin.

    Using resin would work I am sure to seal the interior of the box. But what about if it eventually cracks inside the box at the joints, and then you begin to loose air tight integrity? Or what if it doesnt adhere to the interior of the box after a while and rattles arroudn inside after falling in like broken chips? I mainly take this step to add strength and rigidity. No needing to add extra boards. that makes it too heavy. no adding anyhting inside the box for sealing purposes...... no need to. I am one of those guys that is peticular about construction quality and strength as well as sound quality. this is the BEST way for weight, strength, airtight, and SQ.
    Last edited by joeldirt; 12-08-2004 at 03:26 AM. Reason: spelling




  12. #12
    DFW40's Avatar
    DFW40 is offline CarAudio.com Veteran



    Join Date
    Aug 2004
    Location
    Keller, TX DFW area
    Age
    40
    Posts
    2,059
    Post Thanks / Like
    Images
    10
    Mentioned
    0 Post(s)

    Re: Building a sealed box

    I have though about doing something like this as well but don't most boxes flex on the large flat side of the boards and not really at the joints?




  13. #13
    Moe Lester's Avatar
    Moe Lester is offline 1/3 of TEAM PWNAGE



    Join Date
    Dec 2003
    Location
    Houston, TX
    Age
    27
    Posts
    3,614
    Post Thanks / Like
    Images
    10
    Mentioned
    0 Post(s)

    Re: Building a sealed box

    since the wood glue I use makes a bond stronger than the MDF itself, i dont think cutting dados isnt going to help much if at all.




  14. #14
    amedeuce's Avatar
    amedeuce is offline :crap:



    Join Date
    Jan 2004
    Location
    CA
    Posts
    1,759
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Re: Building a sealed box

    Dados give you more glueing area, easier assembly, very strong joints. It makes it easier to me to do it with dados, to each his own I guess, I will never build my boxes without using dado cuts.




Closed Thread

Similar Threads

  1. Replies: 7
    Last Post: 12-05-2004, 01:14 AM
  2. Sealed Box recommendations for 1 OR 2 12" IDMAX?
    By TheGrimReaperKD in forum Subwoofers
    Replies: 10
    Last Post: 01-06-2003, 11:35 AM
  3. 10W0 and JL Sealed Box Size
    By JAA in forum Subwoofers
    Replies: 5
    Last Post: 07-29-2002, 11:32 AM
  4. I need help building a box
    By Box builder in distress in forum Wiring, Electrical and Installation Help
    Replies: 4
    Last Post: 01-30-2002, 07:56 PM
  5. Need help building a box
    By need help in forum Wiring, Electrical and Installation Help
    Replies: 1
    Last Post: 01-29-2002, 09:59 AM

Posting Permissions

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