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Overview

Ortofon MC 90X Moving Coil Phono Cartridge

Replicant 100 stylus. Boron cantilever. Stainless-steel body.

The Ortofon MC 90X reimagines the legendary MC A90, combining its original engineering philosophy with refinements in materials, magnet design, and damping technology. Designed for high-performance analog systems, the MC 90X delivers precise groove tracking, exceptional channel separation, and detailed musical reproduction.

At its heart is Ortofon's Replicant 100 diamond stylus, mounted on a lightweight, rigid boron cantilever. Aucurum quad-coil windings and a powerful neodymium magnet system work alongside Ortofon's Field Stabilizing Element to maintain magnetic-field stability and minimize dynamic distortion.

The cartridge's stainless-steel body is manufactured using Selective Laser Melting (SLM), while the Wide Range Damping system and newly developed rubber dampers help control resonance across the frequency spectrum.

 

OUTPUT

0.25 mV

TRACKING FORCE

2.3 g

CHANNEL SEPARATION

>28 dB

Key Features

  • Ortofon Replicant 100 stylus: 5/100 µm profile designed for precise groove tracing and extended contact with the record.

  • Boron cantilever: Lightweight, rigid construction for responsive stylus movement.

  • Aucurum quad coils: Gold-plated 6NX oxygen-free copper windings.

  • Field Stabilizing Element (FSE): Maintains magnetic-field stability to reduce dynamic distortion and improve channel separation.

  • Wide Range Damping (WRD): A platinum disc positioned between two rubber absorbers controls resonance across a broad frequency range.

  • New proprietary rubber dampers: Developed and manufactured by Ortofon for the MC 90X.

  • SLM stainless-steel body: Precision-manufactured for structural rigidity and controlled cartridge mass.

  • Excellent channel balance: Less than 0.2 dB at 1 kHz.

     


Complete Technical Specifications

Specification

Ortofon MC 90X

Cartridge type

Moving coil (MC), stereo

Mounting type

Standard ½-inch

Stylus type

Ortofon Replicant 100

Stylus tip radius

r/R 5/100 µm

Cantilever material

Boron

Output voltage

0.25 mV

Channel balance at 1 kHz

Less than 0.2 dB

Channel separation at 1 kHz

Greater than 28 dB

Frequency response, 20 Hz–20 kHz

±1 dB

Dynamic lateral compliance

11 µm/mN

Recommended tracking force

2.3 g

Tracking angle

23°

Internal impedance / DC resistance

4 Ω

Recommended load resistance

Greater than 10 Ω

Coil system

Quad coils

Coil wire material

Aucurum — gold-plated 6NX OFC

Magnet system

Neodymium

Additional technology

Field Stabilizing Element (FSE)

Damping system

Wide Range Damping (WRD)

Suspension

Proprietary Ortofon rubber dampers

Cartridge body material

Stainless steel

Body manufacturing

Selective Laser Melting (SLM)

Cartridge color

Blue

Cartridge weight

9.5 g


MC A90 Heritage, Reengineered

The MC 90X builds on the original MC A90's design, retaining its advanced cartridge-body concept while incorporating updated materials and damping.

Replicant 100 and boron cantilever

The finely shaped Replicant 100 diamond is designed to follow the record groove with exceptional precision. Its boron cantilever provides a rigid, low-mass connection between the stylus and moving coil generator.

Field Stabilizing Element

Ortofon's FSE maintains a more consistent magnetic field as the armature moves, helping reduce dynamic distortion and intermodulation while supporting channel separation.

Selective Laser Melting

The stainless-steel body is manufactured using SLM technology. Its rigid structure and 9.5 g weight are designed to provide mechanical stability while supporting compatibility with a broad range of suitable tonearms.

Wide Range Damping

Ortofon's WRD system uses a platinum disc between two rubber absorbers with different properties. Together with the MC 90X's newly developed rubber dampers, the system controls resonance and stabilizes stylus movement.

 

Compatibility & Installation

The MC 90X uses standard ½-inch mounting and requires a compatible tonearm. Its low 0.25 mV output calls for a suitable low-output moving coil phono stage or a properly matched step-up transformer and phono preamplifier.

Ortofon recommends a tracking force of 2.3 grams and a load resistance greater than 10 ohms. Precise alignment and setup are important for obtaining the intended performance from the Replicant 100 stylus.

 

Discover Ortofon at The Grid HiFi. Our Houston team can assist with cartridge selection, turntable compatibility, and moving coil phono stage matching.

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FAQs

Please read our FAQs page to find out more.

Do you price match?

Yes. We match any authorised dealer, including big-box retailers. If you find the same product at a lower price, contact us and we'll match it.

Do you offer free shipping?

Yes — free shipping on every order, with 2-day delivery available on most products. Easy returns and exchanges are included.

Where is your showroom?

We're at 6362 Alder Drive, Houston, Texas. The showroom lets you hear and compare reference-level systems in person before making any decisions. If you're considering a larger purchase or installation, it's well worth the visit.

Can I buy online without visiting the showroom?

Yes. The full product range is available through the online store with free nationwide shipping. For more complex system builds, speaking with one of our advisers first tends to lead to a better result.

Do you offer financing?

Yes. Special financing is available through the BrandSource Credit Card for qualifying purchases, allowing you to spread payments over time with no annual fee. Promotional rebate savings are also available periodically. See the financing page for full details.

Do you install systems as well as sell equipment?

Yes — installation is central to what we do. We design and install whole-home audio and video, home theaters, media rooms, outdoor audio, lighting and motorised shades, and full smart home automation.

Do you provide support after installation?

Yes. We provide ongoing service and support to ensure systems continue performing as intended — not just on installation day, but over the long term.