Custom handbuilt moving coil cartridges with the coil of a GRASSHOPPER III and the frontpole and suspension of the GRASSHOPPER IV: the best cartridge available for its price. Version: High Ouput - Stylus Shape: VDH - IS Stylus Radii: 2 x 85 Micron Frequency Range: 5 - 55.000 Hz Tracking Force: 13.5 - 16 mN Static Compliance: 35 Micron/mN Tracking Ability at 15mN at 315Hz: 70 - 80 Micron Output Voltage at 1 kHz at 5.7 cm/s eff.: 2.25 mV RMS Channel Unbalance: < 0.3 dB Channel Separation at 1kHz / 10kHz: > 35 / > 30 dB Equivalent Stylus Tip Mass: 0.32 Milligram System Weight: 8.2 Gram Vertical Tracking Angle : 22 Degrees Optimum Load Capacitance: see (*2) Recommended Load Impedance:47k (> 1k) Ohm Recommended Eff Tone arm Mass: 6 - 10 Gram Moving Coil Resistance per channel: 96 Ohm +/- 10%