Green4 Prestige Cartridge

Green4 is part of the Grado Prestige Series, delivering the core performance and musical character that define Grado cartridges. Built on decades of cartridge design, it provides a stable and engaging presentation across a wide range of systems. Utilizing Grado’s moving iron design, Green4 offers a consistent and reliable signal with low moving mass and long-term performance. The die-injection molded housing supports dependable construction and ease of use. Offered in both standard mount and P-mount configurations, Green4 is designed for broad compatibility. SPECIFICATIONS: Output - 4 mV @ 5 CMV (45 degrees) Frequency Response - 10-55,000 Hz Channel Separation - Average 25 DB, 10-30,000 Hz Stylus - Diamond- Elliptical Input Load - 10k - 47k ohms Induction - 50 mH DC Resistance - 660 ohms Cartridge Weight - 6 grams Tracking Force - 1.6 -1.9 grams Compliance - 20 um/mN Mounting - P-mount or 1/2’’ Screw Mount Performance Green4 is a high output moving iron cartridge designed for compatibility with a wide range of phono stages. Its presentation is balanced and musical, with clear detail and a smooth top end. The midrange carries warmth and presence, while low frequencies remain controlled and well defined. Recordings are presented with coherence and stability, maintaining a natural and engaging character that reflects the music.   Diamond, Cantilever & Stylus Green4 features a bonded elliptical diamond mounted to an aluminum cantilever. The elliptical profile provides effective groove contact and reliable tracking, while the aluminum cantilever contributes to a stable and balanced presentation. This combination delivers consistent performance across a wide range of recordings. The stylus assembly is user-replaceable, allowing for easy maintenance and long-term ownership. All Prestige Series styli are interchangeable, providing flexibility across models while maintaining consistent performance.   Moving Iron Design All Grado cartridges utilize a moving iron design built on Joseph Grado’s patented flux-bridger principle. This approach allows the cartridge to generate a precise signal with extremely low moving mass, while keeping the coil structure fixed. The result is a presentation that combines speed, control, and harmonic integrity without the fragility often associated with traditional moving coil systems. The design also ensures long-term consistency, maintaining performance over time without degradation of the internal signal path.   Coil & Internal Structure The internal signal path is built using ultra-high purity 5N OCC copper, selected for its conductivity and consistency. Each cartridge undergoes cryogenic treatment and internal damping to reduce unwanted resonance and preserve signal integrity. The result is a presentation that remains coherent, balanced, and dynamically responsive.