CBFryman2 5,000+ posts
Banned
Fs is the frequncy a sub likes to resonate at. Fs is it's resonant frequincy. It is determined by moving mass and the suspension. The looser the suspension and the more the moving mass the lower the Fs. The stiffer the suspension and the lower the moving mass the greater the Fs.just wonder what does FS do in a SPL sub?
i know why all the others //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif
In a perfect world Fs of the sub, tuning of the box, and volume reconant frequincy of the vehicle would all be the same.
In the real world SPL oritented subs generally have a higher Fs as they are designed to play higher tones.
Xmax means little once you hit the SPL world...espeically if you have plenty of room for non linear displacement.