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Comments on How to Build a Subwoofer Box for Your Car

  • Spencer James Sullivan Nov 12, 2010
    it depends on the space available in your car plus if you want it ported or not the size of the box is largely up to you tho
  • subsounder Sep 12, 2010
    i got 2 8" kevlar subwoofers, what should i build the dimentions to??
  • subsounder Sep 12, 2010
    i got 2 8" kevlar subwoofers, what should i build the dimentions to??
  • desotocaraudio Oct 05, 2009
    dosage you want to use a sealed box in order to get the sound that your looking for. it needs less power to push to sub and it gives it a tighter bass cause i like heavy metal myself and i like to feel the double bass not just hear it and every speaker works about the same but if it was me i would use American Bass for one they are made in the USA and two they really hold up really well and with this sub you dont need a very big box they normally need about 1.5 to 2.0 sq. ft. of room depending on the sub you buy but if thats what your looking for use a sealed box
  • desotocaraudio Oct 05, 2009
    never use particle board if your going to do it right use 3/4" mdf cause the other stuff will just come apart when put to a real test
  • dosage Jun 10, 2009
    How can a subwoofer react faster?Is it related to the diameter of the woofer or the liter that woofer has?What types of woofers do you suggest for metal music fast as hell?
  • trikkdogg2000 Jan 26, 2009
    a ported box is better than a sealed one if you are looking for more of the sound of the bass rather than the feel of it .. @ dazm the subs are held in by anything from 8 to 15 screws dependant on sub make theyre more than adequate to hold it in no matter how much bass you pump through just use good wood screws @ miss v12 vanquish you just draw a chalk circle where you want the port and drill holes around the inner of the line being careful not to go outside of it or too close then cut the hole using a jigsaw joining the dots file or sand and fit in the port @ straightthuggin
  • DAZM Dec 31, 2009
    I HAVE 2 10S(Q POWER)BUT I NEED TO NO IF A PORTED BOX IS BETR THEN A SEALED ONE......
  • MissV12Vanquish May 29, 2008
    Any good suggestions for types of spray glue and carpet? Also do I have to silicone the top of the box (where the speaker cutout is) like I did the sides? And I'm slightly concerned on what's going to hold my subwoofer into place. I've got a 12 inch JackHammer (TM) subwoofer and I don't want it damaged if it falls out because of how hard it bumps.
  • MissV12Vanquish May 29, 2008
    Any good suggestions for types of spray glue and carpet? Also do I have to silicone the top of the box (where the speaker cutout is) like I did the sides? And I'm slightly concerned on what's going to hold my subwoofer into place. I've got a 12 inch JackHammer (TM) subwoofer and I don't want it damaged if it falls out because of how hard it bumps.
  • straightthuggin Sep 03, 2007
    if you already have a sealed box and want to add ported holes in it how would you go about doing that????
  • straightthuggin Sep 03, 2007
    if you already have a sealed box and want to add ported holes in it how would you go about doing that????
  • nuttzzy34 May 02, 2007
    I have built several boxes for myself all successful. But I had the room now I dont have the room so I have to squeeze 12's somewhere, and I dont have room for thick wood ether. I had an idea of useing 1/4 in ply wood and then covering it with 3-4 coats of fiberglass cloth witch is stronger than mat. Plus sony has came out with some new subwoofers that are 3-4 in. in depth. My hope is to put them under the back seats but they may not end up there.
  • nuttzzy34 May 02, 2007
    I have built several boxes for myself all successful. But I had the room now I dont have the room so I have to squeeze 12's somewhere, and I dont have room for thick wood ether. I had an idea of useing 1/4 in ply wood and then covering it with 3-4 coats of fiberglass cloth witch is stronger than mat. Plus sony has came out with some new subwoofers that are 3-4 in. in depth. My hope is to put them under the back seats but they may not end up there.
  • Aug 22, 2006
    Here's a tip from a custom installer at a Place Called Custom Sounds: What we do is to seal the inside of the box by using fiberglass resin instead of silicon, it bonds with the wood and pretty much welds the wood together, it will be airtight and hold forever.
  • Aug 22, 2006
    Here's a tip from a custom installer at a Place Called Custom Sounds: What we do is to seal the inside of the box by using fiberglass resin instead of silicon, it bonds with the wood and pretty much welds the wood together, it will be airtight and hold forever.
  • Aug 08, 2006
    I have come to find out using caulk works really well. It's cheap and affordable. I tried this on one of my boxes and heard a good sound. I built it for my cousin, and now that she has showed it off I have had 50 people ask me to build them a box in the past week.
  • Aug 02, 2006
    If you choose to port your box, use 3" PVC for custom installation. This was with my 2 12" subs and I used 3 ports. It made the sound much deeper and I thought the sound was better and harder. Use the Internet to research the port for your box.
  • Aug 02, 2006
    If you choose to port your box, use 3" PVC for custom installation. This was with my 2 12" subs and I used 3 ports. It made the sound much deeper and I thought the sound was better and harder. Use the Internet to research the port for your box.
  • Jun 30, 2006
    Use oak or birch plywood if you want the best bass. 1-2 inch thick, the wood won't give, ever. And unlike MDF, it wont fall apart if it gets wet. I run my comp 18s with no issue at 12,000 watts. Liquid nail, Gorilla glue etc. is all fine. Except silicon, it'll rattle loose before it keeps a seal (maybe not so with lower power subs). Also, put Dynomat (roofing tar paper) inside of the box. You get 3-4 spl out of an average 12.
  • Jun 30, 2006
    Use Dynamat in the inside of the sub woofer box, it will give you better output. I put some in my box with my 4 15" subs and there's no backwave anymore, just deep bass.
  • Jun 30, 2006
    Use oak or birch plywood if you want the best bass. 1-2 inch thick, the wood won't give, ever. And unlike MDF, it wont fall apart if it gets wet. I run my comp 18s with no issue at 12,000 watts. Liquid nail, Gorilla glue etc. is all fine. Except silicon, it'll rattle loose before it keeps a seal (maybe not so with lower power subs). Also, put Dynomat (roofing tar paper) inside of the box. You get 3-4 spl out of an average 12.

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