f3?

[SQBubble 10+ year member]

is f3 means the tuning port of an enclosure?

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[HotCarl 10+ year member]

fb = tuning

f3 = 3db down point.

 

[SQBubble 10+ year member]

oh ok thx

then ,

how do u know the f3 and fmax if i have a box 3.8net with fb:27hz

 

[yacob.naif 10+ year member]

http://64.233.167.104/search?q=cache:-Eb16KuDjlYJ:www.highefficiencyloudspeakers.com/user/Alignments.pdf+f3+formula+3db&hl=en&gl=us&ct=clnk&cd=1&client=firefox-a

i'd be more helpful and find it for you, but i have no idea what that means //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[HotCarl 10+ year member]

oh ok thx then ,

how do u know the f3 and fmax if i have a box 3.8net with fb:27hz

winisd.

 

[Volenti 10+ year member]

oh ok thx then ,

how do u know the f3 and fmax if i have a box 3.8net with fb:27hz

you use a modeling program;

These vary according to the driver used (and vary again, greatly,when you put it in a car) eg;

3 random 15's I pulled up in BB6pro using 3.8net with an fb of 27hz;

F3(hz) . Fmax(hz)

21hz ..... 56hz

24hz ..... 51hz

31hz ..... 67hz