The newly redesigned Black1 and Green1 have had their coil design reconfigured, and the effective moving mass of their generating system has been reduced by 17%. The Black1 and Green1 models use a three piece OTL cantilever technology, standard oxygen free wire in the coils and Grado's specially designed elliptical diamond mounted in a brass bushing. The Green1 model is selected from the Black1 production run and meets higher test specifications. Approximately 15% of the production run will meet these standards and become Green1 models.
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