Grado Labs Ref Series Platinum1 4.0mV Phono Cart Half Inch Mount

Grado Labs

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The newly redesigned Platinum1 and Sonata1 have had their coil design reconfigured, and the effective moving mass of their generating system has been reduced by 17%.

  • All this is hand-assembled within a machined, new processed, Australian Jarrah wood housing.

    The Platinum1 and Sonata1 models use a modified four piece OTL cantilever technology achieving a 10% tip mass reduction over the Prestige series and ultra-high purity long crystal (UHPLC) oxygen free copper wire in the coils.

    The Platinum model uses Grado's specially designed elliptical diamond mounted on a brass bushing, and the Sonata model uses Grado's specially designed nude elliptical diamond.

    • 4 piece cantilever technology with UHLPC wire in the coils
    • Reduced moving mass by 17%
    • Hand Assembled using Australian Jarrah Wood Housing
  • Frequency Response: 10-60,000 Hz

    Principal: Moving Iron

    Input Load: 47K

    Output at 1KHz 5CM/sec.: 5mV

    Recommended Tracking Force: 1.5

    Inductance: 45mH

    Resistance: 475

    Compliance CUs: 20

    Stylus Replacement: F

    Mounting: Half Inch Mount

    Weight: 6.5