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Silver Member Username: CenusHicksville, Ohio Usa Post Number: 575 Registered: Jan-05 | can you have to much port area. i was wondering because if i get the shocker sub i'm going to port the box but i don't want to small of port and get port noise but what would happen if i went with too much port area. right now i'm thinking of 2 5inch diameter pvc pipes[cut to length of what ever i decide to tune the box to] but what if i use 3 or 4, that would increase the port area but would it help the sub any. |
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Silver Member Username: CenusHicksville, Ohio Usa Post Number: 579 Registered: Jan-05 | bump |
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Gold Member Username: SouthernrebelMonroe, Louisiana USA Post Number: 1444 Registered: Mar-04 | how big of a box is this going to be...and what are you planning on tuning the box to? |
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Silver Member Username: CenusHicksville, Ohio Usa Post Number: 580 Registered: Jan-05 | well right now im thinking 4-4.5cf tuned to 35-40hz. |
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Silver Member Username: CenusHicksville, Ohio Usa Post Number: 582 Registered: Jan-05 | bump |
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Bronze Member Username: TransientTaosUSA Post Number: 22 Registered: Oct-05 | If it is better ported do it. Sealed boxes with alot of power equal higher spl. See what the sub recomends. |
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Silver Member Username: CenusHicksville, Ohio Usa Post Number: 584 Registered: Jan-05 | ok never heard that sealed boxes have higher spl before, but the sub is a shocker extreme so its kinda hard to find info on it. |
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Gold Member Username: SouthernrebelMonroe, Louisiana USA Post Number: 1446 Registered: Mar-04 | w/ a box the size and tuning you are talking about...i would try 40-55sq inches of port. |
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Silver Member Username: CenusHicksville, Ohio Usa Post Number: 586 Registered: Jan-05 | ok im not very good with ported enclousers, like how to calculate port area, or the port tuning. so does any1 know of a website that has a enclouser calulator so i can determin how long of piece of pipe i will need. |
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Gold Member Username: SouthernrebelMonroe, Louisiana USA Post Number: 1448 Registered: Mar-04 | www.bcae1.com look for the speaker enclosure calculator. port area is just how big the ports opening is...ex: 6" pvc has a 28.26sq inch opening. (port area) the calculator on that site will tell you port length, port area, and net box volume. |
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Silver Member Username: CenusHicksville, Ohio Usa Post Number: 589 Registered: Jan-05 | ok i went to that website and found the speaker enclouser calculators, but i need to know QES,QTS,and VAS of the speaker. and since the sub im going to get is very hard to get info for i can't find those specs so what should i do. |
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Gold Member Username: SouthernrebelMonroe, Louisiana USA Post Number: 1461 Registered: Mar-04 | http://www.bcae1.com/spboxnew2.htm use that calculator^ |
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Anonymous | hey marshal if my qts is .4312 should it go in a ported or sealed box for best spl |
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Gold Member Username: SouthernrebelMonroe, Louisiana USA Post Number: 1464 Registered: Mar-04 | ported boxes are *usually* ~3db louder than sealed boxes. |
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Silver Member Username: CenusHicksville, Ohio Usa Post Number: 590 Registered: Jan-05 | ok i got it now, thanks for the help marshall. |