The Green2 are hand selected from Black2 production runs which meet higher test specifications. Approximately 15% of the run usually exhibits these specs and become a Green2. Frequency Response: 10-50. Principal: MI. Channel Separation at 1KHz: 30. Input Load: 47K. Output at 1KHz 5CM/sec.: 5mV. Recommended Tracking Force: 1.5. Stylus Type: E. Inductance: 45mH. Resistance: 475. Compliance CUs: 20. Stylus Replacement: U. Mounting: S/P. Weight: 5.5