Equation relating t/s parameters to sensitivity vs frequency

[thadman]

What is the equation relating t/s parameters to sensitivity vs frequency?

[Amphiprion]

http://www.carstereo.com/images/noeff.gif

That will get you eta naught. Then 112.2 + 10 log(eta naught) = efficiency. If I've remembered the formula correctly it will give you efficiency at 1w/1m. The LDSG list has the equations in it if you have the text on hand (I don't at the moment).

The gist of it is that you will gain the most sensitivity by raising Fs via lowering cone mass, all else being equal.

[thadman]

What specific factors affect Vas and Qes as mass affects Fs and over what bandwidth does this equation apply?

[thadman]

What specific factors affect Vas and Qes as mass affects Fs and over what bandwidth does this equation apply?

I found what I was looking for, for those interested:

Fs= 1 / (2*Pi*sqrt(Cms*Mms))

Qes= (2*Pi*Fs*Mms*Re)/Bl^2

Vas= 1000*P*(C^2)*(Sd^2)*Cms, where P=density of air (1.184 kg/m3 at 25°C) and C=speed of sound of air (346.1 m/s at 25°C)