SD+XMAX= volume displacment ....so then

[Crown_amps]

whats more important

say i have a 12'' sub that has xmax of 13.4 mm

versus a 10 that has say 30 mm of xmax.

looking up volume displacement which one would win?

what im looking for here is a clear answer which is more vital...cone area or xmax when it comes it moving air...no need to flame etc and so on its a good noob question.

thanks in advance

Click to read more...

 

[johnson 10+ year member]

10"

 

[Crown_amps]

so what your saying is xmax accounts for more air being moved than a larger area cone with less movement?>

 

[Crown_amps]

sorry for the bump but i need to know

 

[bigbassman Premium Member]

displacement is cone area times travel

and displacement ability does not show which driver is going to always be louder..

Loyd L.

 

[Crown_amps]

displacement is cone area times travel
and displacement ability does not show which driver is going to always be louder..

Loyd L.

so what would you rather have to get louder than the 12'' with 13 mm xmax

or the 10 with 30mm xmax say in a spl comp where sq isnot there at all

 

[bigbassman Premium Member]

there's no way to predict that... //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

linear displacement ability in reference to SPL competition means nothing //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

Loyd L.

 

[CBFryman2 5,000+ posts]

More parameters are needed.

Unless it is sealed or IB, total linear displacement capeability is only a small part in the equasion of loud. //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

 

[joetama 5,000+ posts]

If you are looking for SPL i think it depends on a little more than that.... Just do the math. V= A*pi*(r^2)

 

[CBFryman2 5,000+ posts]

Loyd, you beat me...BUNG!

 

[bigbassman Premium Member]

More parameters are needed.
Unless it is sealed or IB, total linear displacement capeability is only a small part in the equasion of loud. //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

and only in a distortion limited test..

you can have woofers with relatively limited linear displacements,be louder due to overshoot.. if a distortion limit isn't used..

Loyd L.

 

[bigbassman Premium Member]

Loyd, you beat me...BUNG!

Im da winna..

also added a bit more to what you put //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

Loyd L.

 

[CBFryman2 5,000+ posts]

I was assumeing we wherent talking about the mythwoofer. //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

 

[CBFryman2 5,000+ posts]

Im da winna..
also added a bit more to what you put //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

Loyd L.

I teh looze //content.invisioncic.com/y282845/emoticons/crying.gif.ec0ebefe590df0251476573bc49e46d8.gif

 

[Crown_amps]

and only in a distortion limited test..
you can have woofers with relatively limited linear displacements,be louder due to overshoot.. if a distortion limit isn't used..

Loyd L.

over shoot meaning meaning it popped from the magentic [sp] gap?