have the purpose to demonstrate, through a system which guarantees objective
measurements, the difference between the Greci guitar and traditional classic
guitar of high quality.
could be obtained only with a mechanical device conceived and built for
the purpose, which excluded any possibility of human intervention and guaranteed
constant and ojective repetitiveness.
a long period of experimentation, the device was built under the direction
of professor Enzo Marchetti of the Departementof mechanics and aeronautics,
Faculty of engineering of the university "La Sapienza" in Rome,
July 2001 the device was employed for a comparison between the Greci guitar
and a Gran Concerto guitar at the Istituto Elettrotecnico Nazionale "Galileo
Ferraris" in Turin, Italy. The Institute released a statement illustrated
by diagrams certifying the objective phonic and harmonic superiority of
the Greci guitar.
bene, for a better understanding of the results certified in the statement,
one should remember that a 3dB heightening means double sound power.