When creating a box...
10-15-2009, 08:18 PM
#1
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Thread Starter
Join Date: May 2009
Posts: 33
When creating a box...
Im looking at making a box for a jl12w3v3-4 and my question is.
The website states - 1.75cu ft, tune to 30hz, and F3 = 36hz
i would like to know what f3 is first of all. Next
When building this box, is there a magic ratio i might be looking at for height width depth? or is anything that has the right "1.75 cu ft" going to be the same?
and when it says tune to 30, and 36 f3... am i building the box for 30hz, or 36hz? how does this all play into effect?
The website states - 1.75cu ft, tune to 30hz, and F3 = 36hz
i would like to know what f3 is first of all. Next
When building this box, is there a magic ratio i might be looking at for height width depth? or is anything that has the right "1.75 cu ft" going to be the same?
and when it says tune to 30, and 36 f3... am i building the box for 30hz, or 36hz? how does this all play into effect?
10-15-2009, 08:40 PM
#2
here is one its tuned to 32hz but you will not notice the difference.
as for F3
the F3 or the system roll off frequency is calculated using the thiele-small formulas and indicates the freq at which the low freq system begins to come ineffective the f3 piont is the freq at which system responce is down by 3 db and there fore is considered out of range
as for F3
the F3 or the system roll off frequency is calculated using the thiele-small formulas and indicates the freq at which the low freq system begins to come ineffective the f3 piont is the freq at which system responce is down by 3 db and there fore is considered out of range
10-15-2009, 09:02 PM
#4
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Thread Starter
Join Date: May 2009
Posts: 33
the reason i ask, is the space i have to work with is 15wide max, 18 deep max, and i can make the rest up in height.
im looking for a ported box, sub facing up, port facing up, tuned a frequency thats going to allow the sub to be tight and controlled most commonly, but when i want to play with it, have it hit some lows. Nothing too crazy though.
i was told to tune it to 50hz, but, i think thats way too high.
i listen mostly to metal, but like to throw some different bassy stuff in there every so often. and right now , it sounds pretty good, i just want to build a new box, so i have more room behind the seat.
the one i currently have is (what i was told) 35hz with 1.75cu ft
not sure on the port dimesions inside, but, 16" tall 17.5 wide, top depth 14" bottom depth 18" ... with an L port, 1.5 wide.
im looking for a ported box, sub facing up, port facing up, tuned a frequency thats going to allow the sub to be tight and controlled most commonly, but when i want to play with it, have it hit some lows. Nothing too crazy though.
i was told to tune it to 50hz, but, i think thats way too high.
i listen mostly to metal, but like to throw some different bassy stuff in there every so often. and right now , it sounds pretty good, i just want to build a new box, so i have more room behind the seat.
the one i currently have is (what i was told) 35hz with 1.75cu ft
not sure on the port dimesions inside, but, 16" tall 17.5 wide, top depth 14" bottom depth 18" ... with an L port, 1.5 wide.
10-15-2009, 09:07 PM
#6
Also keep in mind if you change the size of the port area you will need to change the length of the port as well.....
HTH
10-15-2009, 09:12 PM
#7
0 Watt CAFz'r
Thread Starter
Join Date: May 2009
Posts: 33
thanks to both of you, so now finally. all i really need to know... is what should i use for volume and tuning?
Given i want it to pound now and then, but still want to listen to metal, commonly with 16 fill double kicks, etc. (which like i said, its handling fine right now) but. since im building a new one, is there any fine tuning i should do?
i was told 1.45 cu ft at 50hz .... jl reccomends 1.75cu ft at 30hz, (which im assuming is more for "hip hop" and such?) so. im a complete noob here. any insight to what i should be looking at? and what it will do changing these?
Given i want it to pound now and then, but still want to listen to metal, commonly with 16 fill double kicks, etc. (which like i said, its handling fine right now) but. since im building a new one, is there any fine tuning i should do?
i was told 1.45 cu ft at 50hz .... jl reccomends 1.75cu ft at 30hz, (which im assuming is more for "hip hop" and such?) so. im a complete noob here. any insight to what i should be looking at? and what it will do changing these?
10-15-2009, 09:20 PM
#9
thanks to both of you, so now finally. all i really need to know... is what should i use for volume and tuning?
Given i want it to pound now and then, but still want to listen to metal, commonly with 16 fill double kicks, etc. (which like i said, its handling fine right now) but. since im building a new one, is there any fine tuning i should do?
i was told 1.45 cu ft at 50hz .... jl reccomends 1.75cu ft at 30hz, (which im assuming is more for "hip hop" and such?) so. im a complete noob here. any insight to what i should be looking at? and what it will do changing these?
Given i want it to pound now and then, but still want to listen to metal, commonly with 16 fill double kicks, etc. (which like i said, its handling fine right now) but. since im building a new one, is there any fine tuning i should do?
i was told 1.45 cu ft at 50hz .... jl reccomends 1.75cu ft at 30hz, (which im assuming is more for "hip hop" and such?) so. im a complete noob here. any insight to what i should be looking at? and what it will do changing these?
10-15-2009, 09:29 PM
#10
thanks to both of you, so now finally. all i really need to know... is what should i use for volume and tuning?
Given i want it to pound now and then, but still want to listen to metal, commonly with 16 fill double kicks, etc. (which like i said, its handling fine right now) but. since im building a new one, is there any fine tuning i should do?
i was told 1.45 cu ft at 50hz .... jl reccomends 1.75cu ft at 30hz, (which im assuming is more for "hip hop" and such?) so. im a complete noob here. any insight to what i should be looking at? and what it will do changing these?
Given i want it to pound now and then, but still want to listen to metal, commonly with 16 fill double kicks, etc. (which like i said, its handling fine right now) but. since im building a new one, is there any fine tuning i should do?
i was told 1.45 cu ft at 50hz .... jl reccomends 1.75cu ft at 30hz, (which im assuming is more for "hip hop" and such?) so. im a complete noob here. any insight to what i should be looking at? and what it will do changing these?
