Download the class files and an html wrapper to run the applet off-line, right here:  spkr.zip (37.5 KB).
THERE IS NO WARRANTY IMPLIED BY USE OF THIS PROGRAM.  
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NB:

If you are having trouble running the applet, make sure you are running a recent Java enabled browser. You can always try copying the classes out of the cache and downloading Sun's appletviewer to run the program. 

If you need to convert imperial units to metric (some manufacturers quote Vas, Sd and Xmax in imperial units), then this may be of use.

  • 1 square inch equals 0.000645 square metres.
  • 1 cubic foot equals 28.32 litres
  • 1 inch equals 25.4 millimeters

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    If you don't know 'No' the reference efficiency, just guess from 2-4 %

    If you don't know 'Pe', the continuous power rating for the speaker should be used.