Your car's resonant freq?

[45auto 10+ year member]

Huh???

I'm guessing that a resonant frequency is the frequency that something vibrates at it's peak... Right?

And I seen a little about tuning according to the cars resonant frequency for max spl... How does this work, getting the car to vibrate excessively to create more spl?

How does one find out the resonant frequency of their car, what variables are involved, like the material used in the design of the car and stuff?

Resonance?

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[undits 10+ year member]

good question man.. very interested in find that out myself //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

 

[bigbassman Premium Member]

quite honestly... I haven't seen too many vehicles with a true peak frequency that sticks out like a sore thumb...

now before you try me on this... I said the car.... just because certain box designs show a peak... that's not the same thing...

I've tested and built MANY different vehicles... you throw a butterworth order in em, and you'll find nary little of a giant peak.... most vehicles are flat from 65-70hz, down to below 14 hz or so....

you will discover that box / tuning interactions will generate a peak frequency... that's called finding the most efficient working point of the box, vent, and woofer(s)

and it is easier to make certain woofer / tuning / box interactions more efficient (i.e louder) in vehicles.....

if I need to dig further into the topic.. lemme know..

Loyd L.

 

[80INCHES 5,000+ posts]

yes please dig further ..this will actually be the first thread in a long time that will have some kind of meaning and intelligent responses

80

 

[_DjScrew_ 5,000+ posts]

yea, what 80 said. i've always heard it said, but never seen it explained.

 

[prochobo 10+ year member]

It also depends on the location right? For example, I peak ~53hz in the kick, ~40hz at the head.

 

[Flipx99 5,000+ posts]

subscribed until idiots f*ck up the thread

 

[dleccord 5,000+ posts]

anyone know an accords resonant freq?

 

[matrxx dude 5,000+ posts]

Resonant Frequency Is Actually A Complicated Thing To Find Out In Vehicals,because Every Vehical Is Different Acoustically,but 1 Way Is To Take A Single Sub In A Sealed Box And Put In Ur Vehical And Meter It Playing A Sweep,then U Want To Try And Tune Ur Ported Box As Close As Possible To Wat The Meter Said

 

[Bolognablake 10+ year member]

Resonant Frequency Is Actually A Complicated Thing To Find Out In Vehicals,because Every Vehical Is Different Acoustically,but 1 Way Is To Take A Single Sub In A Sealed Box And Put In Ur Vehical And Meter It Playing A Sweep,then U Want To Try And Tune Ur Ported Box As Close As Possible To Wat The Meter Said

Qué?

 

[dleccord 5,000+ posts]

why sealed?

 

[Mr. Opportunist 10+ year member]

Resonant Frequency Is Actually A Complicated Thing To Find Out In Vehicals,because Every Vehical Is Different Acoustically,but 1 Way Is To Take A Single Sub In A Sealed Box And Put In Ur Vehical And Meter It Playing A Sweep,then U Want To Try And Tune Ur Ported Box As Close As Possible To Wat The Meter Said

no

 

[matrxx dude 5,000+ posts]

Because U Want A Flat Response To Start With,like A Sealed Box,if U Do It With A Ported Box ,u Havnt Found Out Anything About The Vehicals True Resonant Frequency Because The Ported Box Will Throw All That Off.

 

[Mr. Opportunist 10+ year member]

Because U Want A Flat Response To Start With,like A Sealed Box,if U Do It With A Ported Box ,u Havnt Found Out Anything About The Vehicals True Resonant Frequency Because The Ported Box Will Throw All That Off.

just shut up now

 

[Flipx99 5,000+ posts]

Because U Want A Flat Response To Start With,like A Sealed Box,if U Do It With A Ported Box ,u Havnt Found Out Anything About The Vehicals True Resonant Frequency Because The Ported Box Will Throw All That Off.

you know it's hard a f*ck to read when you type like that....