Building a box...lil' help
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Silver Member Username: SpankinurwoofersGR, MI US Post Number: 236 Registered: Nov-07 | So, I'm building a 4 cu. ft. ported enclosure tuned to 33 hz for two 12" kicker cvr's. question is, how do i ensure that there's no port noise? Certain square inch opening? Also, I was planning on having the port in the middle of the two subs, but would it be better(i kno it would use less wood) to just have it to one side? thanks guys. |
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Silver Member Username: SpankinurwoofersGR, MI US Post Number: 237 Registered: Nov-07 | bump |
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Silver Member Username: Philly306I get higher golf scor..., North carolina Post Number: 860 Registered: Apr-07 | Im no box builder but i think the main reason for port noise is to little port area(has something to do with port velocity) |
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Gold Member Username: InsearchofbassPost Number: 7963 Registered: Jun-04 | http://www.linearteam.dk/default.aspx?pageid=ventcalculator slot port program...http://www.carstereo.com/help/Articles.cfm?id=31 I use linearteam as a guide but dont let the vent mach get over 11 and you shouldnt get port noise but go lower if you can and then covert the square inches of port you use on that to make a slot port but follow what the slot port calculator says for port length which will be different than what the linearteam program says the length should be |
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Silver Member Username: SpankinurwoofersGR, MI US Post Number: 238 Registered: Nov-07 | hey, thanks phil. anybody know what port area cvr's would need??? (older cvr's) Or, could somebody tell me if this would work ok?: 3"x13" area (length is 17.8") |
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Gold Member Username: DrivingrecklessDD 9515f, 148.2 db Mov... Post Number: 5435 Registered: Apr-06 | YT i can hook you up with a free box design... just hit me up on AIM tommorow around 1230-730 eastern time..... aim: drivingreckless |
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Silver Member Username: SpankinurwoofersGR, MI US Post Number: 241 Registered: Nov-07 | ^^^great links, thanks sean |
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Platinum Member Username: Rovin4 10 Pioneer... Post Number: 13095 Registered: Jul-05 | try using this prog http://www.subwoofertools.com/forum/ported-box.asp?Ew=32&Eh=15&Dia=6&Xmax=18&Vd= .16&NumW=1&Vb=2.5&Fb=34&Qts=&Vas=&Fs=&CE=0 ... |
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Silver Member Username: SpankinurwoofersGR, MI US Post Number: 242 Registered: Nov-07 | thanks driving... I have to make an AIM account now i deleted my old one, and never really use it anymore. |
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Silver Member Username: SpankinurwoofersGR, MI US Post Number: 243 Registered: Nov-07 | also nice link rovin, thanks...now which one to use, lol |
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Gold Member Username: InsearchofbassPost Number: 7964 Registered: Jun-04 | "try using this prog http://www.subwoofertools.com/forum/ported-box.asp?Ew=32&Eh=15&Dia=6&Xmax=18&Vd= .16&NumW=1&Vb=2.5&Fb=34&Qts=&Vas=&Fs=&CE=0 ..." that program seems to make the port opening too small the last time I used it |
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Silver Member Username: SpankinurwoofersGR, MI US Post Number: 245 Registered: Nov-07 | thanks everyone...aaaaaand one more thing, this would be a good size/tuning for 2 12" cvr's right? |
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