Odd, Mr E-Stat. Very odd. I never liked the Tympani driven with ARC amps..... too agressive sounding to me in a very unnatural way. So I crossed the Tympani off my list until one day I visited someone who used a Futterman to power his Tympani. Now THAT was smooth reality. And the cool-fools would rewire 4 ohm Tympani to 16 ohm and then the Futterman-Tympani output was as sharply smooth and realistic as one could hope for. First time listeners, myself included, were always dumbfounded.

Nah, Skep. Cones stiff enough (and therefore heavy enough) to perform as rigid "pistons" driven by a voice coil at their apex simply have too sluggish a transient response to compete with an .0005 mylar diaphragm moved by a distributed force. The mylar is not intended to act as a "rigid structure" so all that "reinforcement weight" goes away.