My Mechanic's Car Audio
1st January 2004 - report written and upload
True event circle around middle 2002
DLS 6.5" Midrange model MS6 from Component Set

I think the graph speaks for it self.
ACOUSTICS SECTION AUDIO SECTION CAR SECTION
HOME - CHIN Fa Cheng's Technical Website for Acoustics, Audio and Car
Starting May 2007 I work in Hong Kong with frequent travel to Guang Dong Provinces. If you are near welcome to meet up, my email.