Cartridge model from the Prestige series - ME+ is made especially for Mono tracks. Those models use specially designed elliptical diamond, mounted in a brass bushing. The ME+ uses one of GRADO's upgraded generating systems. The Prestige Series by Grado is designed for high output and excellent stability under severe use. Prestige models available in both 1/2" mount and P-mount. All styli in the Prestige series are user replaceable. Specifications: Frequency Response: 10 - 50 000 Hz, Principal: MI, Channel Separation at 1KHz: 30, Input Load: 47 kΩ, Output at 1KHz 5CM/sec.: 5mV, Recommended Tracking Force: 1.5 g, Stylus Type: C, Inductance: 45mH, Resistance: 475 Ω, Compliance CUs: 20 cm/dyne, Stylus Replacement: U, Mounting: S/P, Weight: 5.5 g.