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Bronze Member Username: JohnnylemoineLaPlace, Louisiana United States Post Number: 70 Registered: Aug-04 | If I convert the round port diameter to slot port area do i keep the same length? Can someone give me an answer? |
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Bronze Member Username: JohnnylemoineLaPlace, Louisiana United States Post Number: 73 Registered: Aug-04 | my sub calls for a 4"x8" round port, I know that the area of the opening hsa to be 12.57sq in. But do I still make the slot port 8" long? or does it have to be converted too? |
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Bronze Member Username: JohnnylemoineLaPlace, Louisiana United States Post Number: 75 Registered: Aug-04 | someone please help me! |
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Bronze Member Username: BoopersLima, Ohio United states Post Number: 64 Registered: Jul-04 | the port surface area has to be the same, what you need to do is calculate the surface area of the round port and make a slot port with equal amount of surface area |
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Silver Member Username: JmloughreyFarmington, CT Post Number: 271 Registered: Jul-04 | http://www.carstereo.com/help2/Articles.cfm?id=31 |
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Bronze Member Username: JohnnylemoineLaPlace, Louisiana United States Post Number: 83 Registered: Aug-04 | so the length would stay the same? |
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Silver Member Username: CaraudiofngHouston, TX Post Number: 248 Registered: Aug-04 | If it's 8" long as a round port, needs to be 8" long as a slot port. |
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Bronze Member Username: JohnnylemoineLaPlace, Louisiana United States Post Number: 96 Registered: Aug-04 | thx |
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Silver Member Username: InsearchofbassPost Number: 405 Registered: Jun-04 | thats if the surface area is the same but if its more the slot port will need to be longer |
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Bronze Member Username: JohnnylemoineLaPlace, Louisiana United States Post Number: 98 Registered: Aug-04 | ok, the slot port should be 12.57 sq.in. and 8 in. long. my box is going to 28x14 3/4x14 3/4. what ratio should I use for the H and W of the port? |
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Anonymous | try to keep the vent wider than 1.5"...that way you have less chance of noise. but if that my calculations are correct then your bow is bout 3 cuft, right? if so you may wanna think about a larger area port, you would have to recalculate the port length though, but it may sound better. |
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Silver Member Username: JohnnylemoineLaPlace, Louisiana United States Post Number: 105 Registered: Aug-04 | Its 2.5 cuft. I was thinking of going about 2" wide on the port, but i wanted the port to go all the way across the box,14-3/4" not 28". but i guess that i cant. |