Grado Red4 Prestige Series · Moving Iron Phono Cartridge Part of the Grado Prestige Series, the Red4 delivers 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 — controlled, coherent, and consistently musical. ● Moving Iron Design Built on Joseph Grado's patented flux-bridger principle — extremely low moving mass, fixed coil, and long-term signal consistency without the fragility of moving coil designs. ◆ Bonded Elliptical Diamond Elliptical profile on an aluminum cantilever for effective groove contact, reliable tracking, and a stable, controlled presentation across a wide range of recordings. ↻ User-Replaceable Stylus The stylus assembly is easily user-replaceable. All Prestige Series styli are interchangeable, offering long-term ownership flexibility across models. ◆ 5N OCC Copper & Cryo Treatment Ultra-high purity 5N OCC copper internal signal path with cryogenic treatment and internal damping to reduce resonance and preserve signal integrity. Technical Specifications Specifications not provided — please add before publishing. Mounting Compatibility Available in P-Mount and ½" Standard Screw Mount configurations for broad tonearm compatibility.
