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View Full Version : what design would be more efficient?



NhustlaR
04-18-2007, 04:49 PM
3" port across the whole bottom (37")


http://img265.imageshack.us/img265/9757/box1bm9.jpg (http://imageshack.us)


or a 5" port thats 19" in the middle of the box.

http://img265.imageshack.us/img265/890/box2yk8.jpg (http://imageshack.us)



sorry for the really bad pics.

NhustlaR
04-18-2007, 06:20 PM
ehhh?

spoonraker
04-18-2007, 07:09 PM
He's asking if there is any different between a port that is incredibly wide, but not very tall, versus a port that is much more squared

PowerNaudio
04-19-2007, 02:56 AM
with out knowing any more information other then the one you have provided. the most efficient port is the more squarish port. the best port is a port that stays with in a 1 to 1 ratio of width to height or round. since it provides the lest amount of surface resistance area within the port.

helotaxi
04-19-2007, 11:10 AM
1:1 is best, 8:1 is acceptable. Any farther than that and the wall resistance messes up the tuning.

What are you tuning to and do you have any idea how long that port will be?

NhustlaR
04-19-2007, 02:15 PM
thanks guys, i just didnt know if the 5" port in the middle would cause air flow issues.