Round ports take up less space than square ports?
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Silver Member Username: Jprix82Post Number: 484 Registered: Jan-06 | Lets just say i needed 50sq.in. of port area,would round ports take up less space(port displacment)than square(slot)ports? | |
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Gold Member Username: SouthernrebelMonroe, Louisiana USA Post Number: 2643 Registered: Mar-04 | yes...they would take up less volume. (because the wall of the port is thinner) to get ~50sq inches of port w/ round ports...you would need four 4" ports, two 6" ports, or one 8". (but, slot ports are cheaper...and you can make them in and L-shape too) |
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Silver Member Username: GeekbikePost Number: 429 Registered: Dec-04 | A 50 sq.in port equals a 8" diamter round port. A more practical approach would be 4 4" round ports (same port area), due to the trouble of finding 8" pipe and even more so if you need an elbow. Assuming port length of 20" with 1 corner each: round ports: 4*(pi*(4in/2)^2)*21in = 1055 cu.in square port (assume 12"x4"): 12in*4.75in*24in = 1368cu.in Round ports would take up slightly less room, but adding 4 ports and keeping the 1 diamter away from any other surface (general rule) might be more difficult. |
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Silver Member Username: RzarectorCoquitlam, Bc Canada Post Number: 991 Registered: Dec-04 | yeah i think slot ports are alot more convenient to.. when u go with bigger subs/displace more air and u need bigger ports.. sometimes its hard to route a big 6" pvc port in a box and have the end kept 6" away from the box walls as well | |
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Silver Member Username: Jprix82Post Number: 485 Registered: Jan-06 | If a square port is 20"H x 5"W would that equal up to 50sq.in.? | |
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Silver Member Username: Jprix82Post Number: 486 Registered: Jan-06 | it didnt bump | |
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Gold Member Username: SouthernrebelMonroe, Louisiana USA Post Number: 2646 Registered: Mar-04 | no...thats 100sq inches. area = lengh x width |
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Silver Member Username: Jprix82Post Number: 487 Registered: Jan-06 | can you give a example of a 50sqin port? | |
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Silver Member Username: Jprix82Post Number: 488 Registered: Jan-06 | it didnt bump | |
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Silver Member Username: Safe_crackerChicago, IL US Post Number: 707 Registered: Jan-06 | Just remember, if a port doesn't fit inside, doesn't mean it cannot go outside! Polo..  |
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Silver Member Username: Graphix1Santa Rosa Heights, Arima Trinidad & T... Post Number: 842 Registered: Oct-05 | "but, slot ports are cheaper" wait pvc is more expensive than mdf...WTF!! |
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Gold Member Username: SouthernrebelMonroe, Louisiana USA Post Number: 2654 Registered: Mar-04 | nester...usually when you buy MDF to build a box, you have plenty left over to do a slot-port. (unless you build a fvckin huge box) a 50sq in square port would be: 10" x 5" = 50sq in 2" x 25" = 50 12.5" x 4" = 50 |
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Silver Member Username: Graphix1Santa Rosa Heights, Arima Trinidad & T... Post Number: 843 Registered: Oct-05 | oh right right...now i get ya.. i was wondering cause 3" pipe down here is equivelent to like 50c a ft |
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Silver Member Username: Jprix82Post Number: 489 Registered: Jan-06 | oohh i got ya, so this would be 75sqin right?
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Silver Member Username: Safe_crackerChicago, IL US Post Number: 710 Registered: Jan-06 | You also have to remember that a round port will play more frequencies than a slot port which will peak more around its tune. Polo.. | |
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Silver Member Username: Terry6405Sullivan, IN US Post Number: 632 Registered: Sep-05 | there is a reason aero ports cost more, they are better i invested in 4 - 4", should be coming soon |
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