Hey Wayne and Chris,Very nice page!
Did notice one small thing: the PSD3003 graph looks like the PSD2002 graph. The eminence site has a different graph for the PSD3003.
Hey Paul C., the Thermionic series is for us tube heads (low Zmax for higher output impedance tube amps) "Thermionic valve" is another name for "tube".
Cheers,
Jeff