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The Platinum3 and Sonata3 models feature a modified four-piece OTL cantilever technology, resulting in a 10% reduction in tip mass compared to the Prestige series. They utilize ultra-high purity long crystal (UHPLC) oxygen-free copper wire for the coils.
The Platinum3 model is equipped with Grado's specially designed elliptical diamond, while the Sonata3 model utilizes Grado's specially designed nude elliptical diamond.
Grado Labs Sonata3 MI Phono Cartridge
Basic Specifications
Body:
Australian Jarrah Wood
Cantilever:
Aluminum / Elliptical Diamond
Output:
High 4.0mV @5 CMV (45)
Low 1.0mV @5 CMV (45)
Inductance:
High Output 55mH
Low Output 6mH
Resistance:
High Output 660 ohms
Low Output 70 ohms
Input Load:
10k-47k ohms
Cartridge Weight:
9 grams
Tracking Force:
1.6-1.9 grams
Compliance:
20μm/mN
Channel Seperation:
Average 30db - 10-30k Hz
Controlled Frequency Response:
10-60 KHz
Non-Sensative to Capacitative Load
Builds:
High Output, Low Output, Mono