port lenght

[iowaaurora 10+ year member]

box will be 36"x16.75x34.75

whitch is right about 10 cubes after subs installed

subs are kicker l5 15 x2

so i have 3.5" x 15.25" port area

my ? how long does my port need to be?

would like to tune them around 36-38 h

Click to read more...

 

[ngsm13 5,000+ posts]

Read the stick at the top of this section.

nG

 

[iowaaurora 10+ year member]

Read the stick at the top of this section.
nG

i did. i tryed. i still have no idea.//content.invisioncic.com/y282845/emoticons/confused.gif.e820e0216602db4765798ac39d28caa9.gif

 

[ngsm13 5,000+ posts]

Well apparently you didn't try very hard.

I'd help, but I'm not on my home computer...

nG

 

[iowaaurora 10+ year member]

Well apparently you didn't try very hard.
I'd help, but I'm not on my home computer...

nG

back to reading i go

i have no problem trying to work it out if i can but i figure someone or 10 would pop right up whith the answer

 

[iowaaurora 10+ year member]

well igot these answers from roe and was wonder if i could get a conformation on these #

Originally Posted by DBDesignsElite

Square Vent:

5.07 Inches would tune you to 36 cycles.

4.48 Inches would tune you to 37 cycles.

3.39 Inches would tune you to 38 cycles.

Slot Loaded:

3.32 Inches would tune you to 36 Cycles.

2.73 Inches would tune you to 37 Cycles.

2.18 Inches would tune you to 36 Cycles.

and aswell the lenth of the port if it was only 3"x8"

 

[IgnoreMe 5,000+ posts]

box will be 36"x16.75x34.75whitch is right about 10 cubes after subs installed

subs are kicker l5 15 x2

so i have 3.5" x 15.25" port area

my ? how long does my port need to be?

would like to tune them around 36-38 h

for a 36hz tuning, you need a vent length of 5"

for a 38hz tuning, you need a vent length of 3.89"

PS: IMHO 53^2 inches of port is entirely too small for that box

 

[zierbox 10+ year member]

The dimensions you gave ? Inside or outside ?

Inside = 10.12 feet (before port and sub)

Outside = 12.12 feet (before port and sub)

Port area = 53.375 sq “

Port length approximately 4” @ 36-38 Hz

 

[IgnoreMe 5,000+ posts]

well igot these answers from roe and was wonder if i could get a conformation on these #
Originally Posted by DBDesignsElite

Square Vent:

5.07 Inches would tune you to 36 cycles.

4.48 Inches would tune you to 37 cycles.

3.39 Inches would tune you to 38 cycles.

Slot Loaded:

3.32 Inches would tune you to 36 Cycles.

2.73 Inches would tune you to 37 Cycles.

2.18 Inches would tune you to 36 Cycles.

and aswell the lenth of the port if it was only 3"x8"

do not use 24^2 of port either...

 

[iowaaurora 10+ year member]

do not use 24^2 of port either...

please elabrate (that is spelld wrong)

ALSO ICOULD GET IT UP TO AROUND 64 maby 72 tops would it make that much of a diffrence

 

[IgnoreMe 5,000+ posts]

please elabrate (that is spelld wrong)

if you are going to use any decent amount of power on those subs, it just is too small of a port area. you will get some port noise most likely. if you HAVE to do one or the other take the 53^2.

personally, i would shoot for 75-100^2 inches

 

[iowaaurora 10+ year member]

if you are going to use any decent amount of power on those subs, it just is too small of a port area. you will get some port noise most likely. if you HAVE to do one or the other take the 53^2.

personally, i would shoot for 75-100^2 inches

the problem i have is it is walled off from trunk (2003 impala)

and whith 2 15 that is about all the room i have

i could go to a round port but i dont see that helping me (but i dont know)

and powering them will be a zx 1500

here is link to his car

http://www.kicker.com/06/hookedup/05HUShow.cfm?ID=95051

he just sold his 12 l7 and bought the l5's

and wants them forward firing coming thriugh rear seat whith port between subs

 

[PsychoTheRapist 5,000+ posts]

if you are going to use any decent amount of power on those subs, it just is too small of a port area. you will get some port noise most likely. if you HAVE to do one or the other take the 53^2.

personally, i would shoot for 75-100^2 inches

Agreed, but I think I would shoot for more like 120 - 160 sq. inches of port. To each their own.

 

[iowaaurora 10+ year member]

Agreed, but I think I would shoot for more like 120 - 160 sq. inches of port. To each their own.

so should i consider aiming the subs to the rear and porting in to the cabin

or aim the port to the rear and subs into cabin

or should i leave the design alone and just try it

 

[ngsm13 5,000+ posts]

WTF are all these lengths you're spouting off?

nG