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Car Forum / Driving, Maintenance, Tuning / Car Audio / March 2008can u make a sub box for a car out of sheet metal?
or does a box just have to be wood because the wood conveys the soun bette -- Eva I think you can -- «???? No to the sheet metal. Use wood or ultra thick plexi-glass. The soun will be alot better -- Lynn >No to the sheet metal. Use wood or ultra thick plexi-glass. The sound >will be alot better. 1/4 inch steel or aluminum would work. Will need some bracing and damping like all boxes. greg Teh acoustics would be horrible. I would look to cover a wood one mad of MDF with sheet metal if you wanted that look -- Malty2 Yes you can!!! BUT- it will take proper tools,and you will need t protect the contacts from hitting the metal. The box will work, but wil produce a hollow, tinny effect (not good) A way around this is to lin the metal with carpet or rubber,or even fiberglass insulation...... It sounds easier and simpler to use wood, but I think outside the bo too!!! You can make it work, and besides--how many ppl can claim the have a meal sub enclosure??? ALSO--USE RUBBER WASHERS AT SCREWHOLES TO DAMPEN THE SHOCK BETWEE THE FRONT SIDE OF THE SPEAKER AND THE CONTACT POINTS ON THE METAL Good luck to ya!! -- desol8tionange Make a flat pattern allowing at least one and one half the thickness i the metal for the bends, preferably more. When you get your pattern done it should allow one to bend all sides so the the finished produce can be sealed at the corners. You have to line the interior with foam and egg cartons. Bass has to be in compression or the speaker blows out. Also the bass energy need to be reflected of a vertical surface that can handle the sound energy without vibrating to much. there should be a 10 to 15 degree angle for reflection of the sound. Use Gorrilla tape if you cannot afford to have housing welded -- forefun You can make a sub box out of virtually any material as long as it meets certain criteria. First, it must be airtight obviously. And second, it MUST NOT flex or resonate. Sheet metal would certainly not be my first choice for exactly that reason (like a bell, metal has a tendancy to resonate). Think about it, if the walls of your subwoofer are flexing or resonating in any way, this flexing requires energy that is wasted, energy that SHOULD be reinforcing the sound energy. If your sheet metal is thick enough I suppose that would work OK. Actually, the VERY BEST material for building a subwoofer enclosure would be some type of stone like marble or granite. This would ensure absolutely no resonance of the enclosure, ergo no lost energy. However, because of the weight and the difficulty of working with stone (attaching slabs together, ect.) virtually no one builds their enclosures out of it except, perhaps, for some esoteric home audio subwoofers. MDF is probably the most popular material because it is extremelly rigid, yet easy to work with. Anyway, that's my $.02, MOSFET > or does a box just have to be wood because the wood conveys the sound > better >You can make a sub box out of virtually any material as long as it meets >certain criteria. First, it must be airtight obviously. And second, it [quoted text clipped - 16 lines] > >MOSFET On a DIY show i saw somebody using SFDF super fine density. i would not know what it is if I saw it. There is a website of somebodys home theater where dual horns are under the floor from cement formed walls. Marble and granite do ring up out of the range of the woofer. It can become a problem and needs to be damped in the upper registers. If you lamanate, you can use all kinds of combinations of materials. Plexaglass/aluminum is popular. greg >> or does a box just have to be wood because the wood conveys the sound >> better > There is a website of somebodys home theater where dual horns are under > the floor from cement formed walls. [quoted text clipped - 7 lines] > > greg True. Though I have never used plexiglass it makes excellent enclosures (as long as the surfaces are curved for rigidity) as they are light (much lighter than MDF) and VERY rigid (hence no flexing or resonating). A common misconception is that different materials affect the sound quality of the bass. This is not true. The point I was really tring to make was that if the sound quality IS different between materials (given the same internal airspace, and same size port if bass-reflex type), then there is a PROBLEM with the subwoofer enclosure. In other words, MDF (or any type of wood) enclosures don't "sound" any different than fiberglass enclosures, stone enclosures, metal enclosures, ect. as long as they meet the two basic requirements I mentioned before A) must be airtight and B) must not resonate or flex. MOSFET How about saving your $.02 and repaying all those that your ripped off on Ebay. Anyway, that's my $.02 to get you started. >You can make a sub box out of virtually any material as long as it meets >certain criteria. First, it must be airtight obviously. And second, it [quoted text clipped - 19 lines] >> or does a box just have to be wood because the wood conveys the sound >> better Yes, you've mentioned that Nick Tanner character before. He definately sounds like a scam artist and should be avoided at all costs. Rick Spanner > How about saving your $.02 and repaying all those that your ripped off on > Ebay. [quoted text clipped - 28 lines] >>> or does a box just have to be wood because the wood conveys the sound >>> better |
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