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The Platinum3 and Sonata3 models utilize a modified four-piece OTL cantilever technology, offering a 10% tip mass reduction compared to the Prestige series. They feature ultra-high purity long crystal (UHPLC) oxygen-free copper wire in the coils. The Platinum3 employs Grado's specially designed elliptical diamond, while the Sonata3 utilizes Grado's specially designed nude elliptical diamond.
Grado Labs Platinum3 Wooden MI Cartridge
Basic Specifications
Body:
Australian Jarrah Wood
Cantileaver:
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 Separation:
Average 30db - 10-30k Hz
Controlled Frequency Response:
10-60 KHz
Non-Sensative to Capacitive Load
Builds:
High Output, Low Output, Mono