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The Master3 and Reference3 cartridges feature a five-piece OTL cantilever technology, reducing tip mass by an additional 5% compared to the Platinum3 and Sonata3 models. Coils wound with ultra-high purity long crystal (UHPLC) oxygen-free copper wire ensure exceptional performance. The Master3 is equipped with Grado's specially designed nude elliptical diamond, while the Reference3 utilizes Grado's true ellipsoid design diamond. Each cartridge is individually calibrated for optimal performance.
Grado Labs Master3 MI Phono Cartridge
Basic Specifications
Body:
Australian Jarrah Wood
Cantileaver:
Machined Boron / Diamond Tip
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:
10 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