Grado Sonata3

The Reference Series3 of wooden cartridges are hand-crafted at Grado Labs from a Australian Jarrah wood. An intricate procedure of curing is done between production steps to achieve optimal sonic quality. This series generator/stylus module is not replaceable allowing a redesigned one-piece magnetic circuit and a reduction of chassis resonances. The Reference Series3 utilizes manufacturing and assembly techniques that result is musical perfection. The Reference Series3 should be used with only the finest equipment. Recommended tracking force 1.5 to 1.9 grams.

Sonata3:
OUTPUT: 4.8mV @ 5 CMV (45)
CONTROLLED FREQUENCY RESPONSE: 15-55 KHZ
CHANNEL SEPARATION: AVERAGE 30 DB - 10-30 KHZ
LOAD: 47,000 OHMS
INDUCTANCE: 30 mh
RESISTANCE: 600 OHMS
NON SENSITIVE TO CAPACITIVE LOAD
CHASSIS MASS: 10 GRAMS
TRACKING FORCE: 1.5 - 1.9 GRAMS