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The Sonata3 does everything the Platinum3 can do - but does it better thanks to an intricate process while being crafted.Grado modified its four-piece OTL cantilever technology to achieve a 10% tip mass reduction over the Prestige Series. The Sonata3 uses ultra-high purity long crystal (UHPLC) oxygen-free copper wire in the coils, and a Grado-designed elliptical diamond.Each Sonata3 is hand-built by Grado's team in Brooklyn, as it has been for decades.Read More
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