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Front Enclosure Design - Material Question

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Old Oct 30, 2001 | 12:54 AM
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Default Front Enclosure Design - Material Question

Okay. Just in the planning stages. I'm going to attempt to create some new enclosures for my Infinity Kappa Components I have up front. Right now they are in the factory Bose enclosure which is plastic. Problem is they aren't sealed and I'm not real happy with the way they turned out. I'll probably use cardboard to templete the first stages, and am curious as to what would be a good material to do the final product in?

Here are some thoughts, feel free to add your opinions.

If anyone has done this, feel free to post pics and comments.


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Old Oct 30, 2001 | 09:33 PM
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Default Re: Front Enclosure Design - Material Question (R94 LT 1)

MDF is the ideal material for speaker enclosures. All the major manufacturers of quality Home and Auto speaker cabinets use it. It is the most effective sound deadening material and will give you a natural warm sound. Fibreglass is to resonant, particle board is to course, plywood to course as well. You can get it at home depot cheap, it shapes easy, and you can router it to sink in speakers and round edges. Use liquid nails to glue it together. 1/2" is ok for speakers but use 3/4" or 1" for subs
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Old Oct 30, 2001 | 10:22 PM
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Default Re: Front Enclosure Design - Material Question (92TripleBlack)

MDF is the ideal material for speaker enclosures. All the major manufacturers of quality Home and Auto speaker cabinets use it. It is the most effective sound deadening material and will give you a natural warm sound. Fibreglass is to resonant, particle board is to course, plywood to course as well. You can get it at home depot cheap, it shapes easy, and you can router it to sink in speakers and round edges. Use liquid nails to glue it together. 1/2" is ok for speakers but use 3/4" or 1" for subs
92TripleBlack
Okay, sounds good, know for the dumb question, what is MDF????? :confused:

Well , if I had looked above, you spelt it out! Thanks!


[Modified by R94 LT 1, 8:23 PM 10/30/2001]
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Old Oct 30, 2001 | 10:38 PM
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Default Re: Front Enclosure Design - Material Question (R94 LT 1)

MDF=Medium density fiberboard. Its sold near the particle board. It is itself a very fine version of particle board. Particle board is made up of splinters and glue, MDF is sawdust and glue. If you go to Home Depot or similar they should be able to point it out. HD labels it MDF. It is also suprisingly heavy. My sub box which is 3/4 and is about 30x20x6 weighs about 50 lbs for the box alone. Close to 100 with sub, speakers, amps and wires.

92TripleBlack :cheers:
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Old Oct 31, 2001 | 12:13 AM
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Default Re: Front Enclosure Design - Material Question (92TripleBlack)

Do you know if it comes thinner than 1/2"? That front area is very tight! The thicker the material the less room for the speakers. I guess I should have noted, I'm "trying" to keep in under the factory speaker grill. If I do manage to come up with something I'll defiantely let everyone know. It's probably going to be my "winter" project.

Add another question. Should I completely seal the speakers in or try and port the bass like the BLOWS did?
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Old Oct 31, 2001 | 12:23 AM
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Default Re: Front Enclosure Design - Material Question (R94 LT 1)

Answer one: I don't know if it comes smaller than 1/2 inch. You wouldn't want to go much smaller because it will loose its integrity. I am planning on doing this myself in the next few weekends.
Answer two: Seal them. Speakers this small don't make bass. They will sound better. I's throw in some polyfill for good measure.
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Old Oct 31, 2001 | 12:39 AM
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Default Re: Front Enclosure Design - Material Question (92TripleBlack)

Answer one: I don't know if it comes smaller than 1/2 inch. You wouldn't want to go much smaller because it will loose its integrity. I am planning on doing this myself in the next few weekends.
Answer two: Seal them. Speakers this small don't make bass. They will sound better. I's throw in some polyfill for good measure.
92TripleBlack
Then you will probably have yours done before me. Get some pics if you can. I was actually surprised that I got the ones in the factory enclosure. It took a lot of cutting. The tweeter was simple as I just cut a small donut from some plastic, mounted it, then, mounted the whole thing were the factory one was. I got the 5 1/4 with the magnet back up to the plastic and it's flush with the higher portion of the enclosure, but like I said, it's not pretty. I'm scared the face of the speaker is to close to the backside of the factory speaker grill, and it will end up getting ruined. That's the main reason for trying to come up with something else. I have noticed these speakers don't seem as prone to cover up like the BLOW's. You can drive with you legs "near" them and get the same quality sound. With the BLOW's, if you leg was any where near the speaker you lost a lot of sound!

Anyone else out there that's messed with this?
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Old Oct 31, 2001 | 11:14 PM
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Default Re: Front Enclosure Design - Material Question (R94 LT 1)

I'll give it a shot.
92TripleBlack :smash: :cheers:
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Old Nov 2, 2001 | 02:49 AM
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Default Re: Front Enclosure Design - Material Question (R94 LT 1)

Since you are making an enclosure for your front speakers, and I assume they are in your door (even if they are in your dash, this applies), use fiberglass. You will not need to make it quite as thick, and it will be A LOT easier to shape it the way you need to rather than trying to cut wood.

Believe me, I am an MDF lover. However, many high end subwoofer enclosures have be made entirely of fiberglass. It is extremely stiff and strong, but the main benefit is that it can be shaped. If you have experience w/ FG, use it! :yesnod: :cheers:
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Old Nov 3, 2001 | 10:47 AM
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Default Re: Front Enclosure Design - Material Question (dtorc4)

Neither. Late model C4's have them down by your feet along the along the frame rail.
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Old Nov 3, 2001 | 12:19 PM
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Default Re: Front Enclosure Design - Material Question (R94 LT 1)

Not in the door, they are between the floor board and the rail under the door. They come in a pod there. I'm no good with glass and besides, MDF gives you a warmer sound anyway. The advantage of glass is that it would be thinner and therefore smaller and lighter but not substantially so for a single mid and that it can be molded into custom shapes. This is the one big advantage of the glass but I should be ok with the MDF. I'm gonna look tomorrow as its raining today.
92TripleBlack :cheers:
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Old Jan 13, 2002 | 04:05 AM
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Default Re: Front Enclosure Design - Material Question (R94 LT 1)

MDF :yesnod: :yesnod:
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Old Feb 14, 2002 | 10:44 PM
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Default Re: Front Enclosure Design - Material Question (Glock'94)




Here you go -

MDF, and I agree, sound is very good!
I made my rear hatch cover out of the same stuff -Bass is now so much better!





Speed-racer
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Old Feb 14, 2002 | 10:52 PM
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Default Re: Front Enclosure Design - Material Question (Speed-Racer)

That looks nice, but our front ones aren't quite that easy. I did use MDF. Here's a link to the work I did on mine.

http://forums.corvetteforum.com/zerothread?id=215852
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