Keep in mind

• Standard 1/2″ Mount — The most common mounting style wherein the cartridge is secured to the tonearm with 2 vertical screws and with 4 colored headshell lead-wires attached to the rear pins.
• Plug (P-) Mount — More common in the 80s & 90s, p-mount cartridges plug directly into the tonearm with 4 standardized pins, usually with 1 horizontal screw through the side for rigidity.

Red4 is part of the Grado Prestige Series, delivering a balanced and engaging presentation built on decades of cartridge design experience. It maintains the core performance principles that define Grado cartridges while offering broad system compatibility.

Utilizing Grado’s moving iron design, Red4 provides a stable and consistent signal with low moving mass and long-term reliability. The die-injection molded housing supports consistent construction and dependable performance.

Offered in both standard mount and P-mount configurations, Red4 is designed for a wide range of systems.

Red

The Red are all hand assembled by our team in Brooklyn, with some builders having over 25 years of experience. With the recent development of the highly received Lineage Series of cartridges, we were able to have a trickle down of technology and bring a new technique to the Red & Blue. This updated series of cartridges offers excellent tonal balance, dynamics, and realism, for a most rewarding reproduction of vocals and instruments. Our coil winding techniques, using ultra high purity copper wire which were honed during the development of the Lineage Series, have let the electrical circuits achieve unison between the four coils in each phono cartridge. This allows for a precise balance between channels and accurate stereo imaging.

As in all Grado phono cartridges the Red & Blue are powered by a twin magnet system that optimizes the balance between stereo channels. All internal magnetic circuit parts are held to extremely high tolerances creating the desired stereo imaging. Grado’s patented Flux-Bridger design allows the Red & Blue to have one of the lowest effective moving mass generating systems while creating an excellent balance throughout the full frequency range.

Technical

• Frequency Response: 10-55
• 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