Refined Moving Coil Performance with a Nude Elliptical Stylus
The Audio-Technica AT-OC9XEN Dual Moving Coil Cartridge brings the precision of Audio-Technica's OC9X moving-coil platform to a nude elliptical stylus design engineered for excellent groove tracking and musical detail. Its 0.3 × 0.7 mil nude elliptical diamond provides lower moving mass than a bonded stylus, helping improve transient response, clarity and the retrieval of subtle information from the record groove.
Independent left- and right-channel moving coils use PCOCC copper and are aligned in a reverse V-shaped configuration to help reduce pressure on the stylus assembly and minimize distortion. A rigid aluminum body controls unwanted resonance, while a neodymium magnet and pure iron yoke increase magnetic energy for efficient signal generation. With a 0.35 mV output, the AT-OC9XEN is intended for use with a compatible moving-coil phono stage, head amplifier or step-up transformer.
Highlights & Benefits
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Nude Elliptical Stylus — The 0.3 × 0.7 mil nude diamond provides low moving mass and precise groove contact for detailed, responsive playback.
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Independent Dual Moving Coils — Separate coils for the left and right channels support accurate stereo reproduction and strong channel separation.
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PCOCC Coil Wire — Pure Copper by Ohno Continuous Casting is used for the coil windings to support clean, highly conductive signal transmission.
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Reverse V-Shaped Coil Alignment — The generator geometry is designed to exert less pressure on the stylus assembly, helping minimize distortion during groove tracking.
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Rigid Aluminum Body — The cartridge housing helps suppress unwanted vibration and resonance while providing a stable platform for the moving-coil generator.
Technology & Design
0.3 × 0.7 mil Nude Elliptical Diamond — Mounting the diamond directly to the cantilever reduces moving mass compared with a bonded stylus, allowing the assembly to respond quickly to groove modulation.
Reverse V-Shaped Coil Configuration — Audio-Technica positions the left and right moving coils in a reverse V formation to reduce pressure on the stylus and help control distortion.
Neodymium Magnet and Pure Iron Yoke — The high-energy magnetic circuit increases magnetic density around the coils, supporting efficient conversion of stylus movement into an electrical signal.
Pre-Threaded Aluminum Housing — Integrated M2.6 threaded mounting holes allow installation using two screws without separate nuts, simplifying attachment to compatible headshells and tonearms.
FAQ — Audio-Technica AT-OC9XEN
What type of stylus does the AT-OC9XEN use?
The AT-OC9XEN uses a nude elliptical stylus with a 0.3 × 0.7 mil curvature radius mounted to an aluminum pipe cantilever.
What tracking force should I use with the AT-OC9XEN?
Audio-Technica specifies a vertical tracking-force range of 1.8 to 2.2 grams, with 2.0 grams as the standard recommended setting.
Does the AT-OC9XEN require a moving-coil phono stage?
Yes. With its low 0.35 mV output, the AT-OC9XEN should be connected to a compatible MC phono input, moving-coil phono preamplifier, head amplifier or suitable step-up transformer. Audio-Technica specifies a recommended load impedance of at least 100 ohms when using a head amplifier.
Can the stylus on the AT-OC9XEN be replaced by the user?
No. The stylus assembly is not field-replaceable. Audio-Technica offers a fee-based Moving Coil Exchange Program for eligible moving-coil cartridges rather than a user-replaceable stylus assembly.
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