external aero port

[tacomaguy1]

Area of a circle is (3.14)x radius squared

Use it to get the port area you want

Psp-inc.com calculator to find your length

[ToNasty]

i understand that. im just saying would there be a differance in sound between the 4 and 6" port. i understanf i have to change the length

[SLAYER1805]

ok would there be a differance in using a 6" port (obviously i would take that into consideration with port lenght)

A 6" inch will give you more port area than a 4", I've read things that said your port area will not be effected no matter the length but I've also read others that say otherwise, so I'm not entirely sure on that, I'd like to know an answer too lol

[C-Fizzy]

Well if you increase port area then yes you increase your amount of port.

So you'd need to adjust port length to account for your tuning frequency.

[certifiednut]

also dont forget that the total length of psp ports new are 18 overall, but they are 17 inches due to an inch of total length subtracted because of the flare. at least on the 4 and 6 inch ones, i dont know about the others.

[ToNasty]

so i shouldnt even bother with a 6" then. just stay at 4

[SLAYER1805]

Your box specs are close to mine, mines bigger by .3 cubic foot and is tuned to 35, pretty close to the tuning you want too and had great results so I say go for the 4", that's my opinion lol

[ToNasty]

thats what i figured. i just want it to be musical all around.

[john253a]

ive done a few sa12 in 1.8@26-27hz and loved the set up

but ive also done some at 2@37hz and was supprized by the sq that it still had down low, but the increased volume was a bonus

[ToNasty]

i just built it. its 1.9 cubes at 37htz and all i can say is WOW! im happy with it and it plays everything so far