GRAPHIC COMPARISONS

realized by the ISTITUTO ELETTROTECNICO NAZIONALE “GALILEO FERRARIS”

in TURIN, ITALY; the 18/09/2001

OBJECT: comparative measurements of sound pressure levels on two guitars ( Josè Ramirez Gran Concerto classic guitar, class 1°, 1977, here called "classic guitar"(chitarra classica) and new guitar conceived and built by Michele Greci, here called "Greci guitar"(chitarra Greci).

NOTA BENE: A 3dB HEIGHTENING MEANS DOUBLE SOUND POWER

First String - E

Second String - B

Third String - G

Fourth String - D

Fifth String - A

Sixth String - E

Global Weighted A Levels

Global Linear Levels