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.

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.

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