wall ??

doin a wall with 10 12s dbdrive plws ,,how many cubes should i make it ...for comps only no music

depends on the ride and the type of comp ,streetbeat or burps

for burps .. about 70 hrtz in a astro

How do you know what hertz if you don't know what size box or the resonant frequency of the Astro?

Nice wrote:

How do you know what hertz if you don't know what size box or the resonant frequency of the Astro?

most astros peak in the high 60's low 70's and with a lil work can be made to peak high 70's

its just a starting point so how many cubes would ya start with ....60? 50? 40? just need a guesstament . this is my first wall . usually ran a civic

14 cf

Navi wrote:

Nice wrote:

How do you know what hertz if you don't know what size box or the resonant frequency of the Astro?

most astros peak in the high 60's low 70's and with a lil work can be made to peak high 70's

My Astro was 63-64, but that was in drag. Never did USACi in it.

High 70s is too high............ that's extreme or super mod area.

Nice wrote:

Navi wrote:

Nice wrote:

How do you know what hertz if you don't know what size box or the resonant frequency of the Astro?

most astros peak in the high 60's low 70's and with a lil work can be made to peak high 70's

My Astro was 63-64, but that was in drag. Never did USACi in it.

High 70s is too high............ that's extreme or super mod area.

yeah ok

Exactly, O.K.

corrrect. okay.

SOLOGHOST wrote:

14 cf

that seams to small id do around 40 45 cubes .. why ya doin 10 12s in that thing for marty ya goin to do same class as me...

Just build the wall as big and strong as your little heart and budget desires. If you build back to the front of the rear wheel wells its usually around 40-45 cubes which is a good start imo.

Geoff, what frequency did your Astro like?

Nice wrote:

Navi wrote:

Nice wrote:

How do you know what hertz if you don't know what size box or the resonant frequency of the Astro?

most astros peak in the high 60's low 70's and with a lil work can be made to peak high 70's

My Astro was 63-64, but that was in drag. Never did USACi in it.

High 70s is too high............ that's extreme or super mod area.

acctually thats stock class s10 area

Astros mid 60

That's in the area Kumar.

That's strange. Our Astro van burped at 91hz.

Does it have anything to do with the box design?

box design as well as baffle plays a role, other than that they are all different you can put the exact same box in two different vans and have a huge difference in note.

Well I am kindof new to this spl stuff but I think you can tune your box to any frequency ,

but the "van" will have a resonant frequency of it's own (some people call that the frequency the "van" likes)

matching these two freq.in phase would seem to be a good thing to do

it has everything to do with your box design,... but what do I know #@*&^@#!

bandpasses tend to play a little higher than ported when u want them to, lol. scott is right actually though. if you actually sweep an astro before you build it for resonant frequency, it tends to be 69-73hz depending on how solid the vehicle is. they tend to be quite a bit louder if you can get the note that high without shrinking the box horribly. well thas what i heard anyway.

:flexes astro knowledge muscles:

Navi wrote:

box design as well as baffle plays a role, other than that they are all different you can put the exact same box in two different vans and have a huge difference in note.

exactly

Goes and eats astro spinach, and grabs notebook....!!!

bruce-bruce wrote:

Goes and eats astro spinach, and grabs notebook....!!!

you don't need a notebook just call

Hey Loren, long time no talk to.