oskar heil, inventor of the ESS transducer, lincoln walsh the designer of the original OHM A and F sound cylinder or later known as CLS or coherent line source, bruce thigpen, inventor of eminent technology of the push/pull electrostatic design without the use of a transformer and his unique tonearm and subwoofer design that uses primarily air with no cone drivers. Last but most noteable, the genius BOB CARVER of then phase linear, carver corporation and sunfire. Inventor of solid state amps sounding like tubes, sonic holography, various ribbon loudspeakers and high powered subs with the downtracking amps and developer of tube amps the power of high powered solid state, and famous for the stereophile challenge of developing the T series in the 80's over night od matching or exceeding the top of the line highly regarded CONRAD JOHNSON.