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Overview

Ortofon MC Diamond Moving Coil Phono Cartridge

Solid diamond cantilever. Replicant 100 stylus. Titanium body. Advanced carbon-nanotube suspension.

The Ortofon MC Diamond is a reference-level moving coil cartridge engineered for precise groove tracking, exceptional detail retrieval, and controlled resonance.

At its heart is a specially polished Nude Ortofon Replicant 100 diamond stylus mounted on a solid diamond cantilever. The cartridge combines this rigid stylus assembly with an optimized magnet system, ultra-pure oxygen-free copper coils, and a titanium body manufactured using Selective Laser Melting (SLM).

A re-engineered Wide Range Damping system incorporates a proprietary rubber suspension developed with Multi-Wall Carbon Nanotube (MWCNT) technology. This advanced suspension is designed to improve damping, tracking stability, and resonance control.

 

Key Features

  • Solid diamond cantilever: Exceptionally rigid construction for accurate transmission of stylus movement.

  • Nude Replicant 100 stylus: Specially polished 5/100 µm line-contact diamond for precise groove tracing.

  • SLM titanium body: Manufactured layer by layer to provide rigidity and high internal damping.

  • MWCNT-enhanced suspension: Proprietary rubber compound incorporating Multi-Wall Carbon Nanotube technology.

  • Re-engineered Wide Range Damping: Controls resonance and stabilizes stylus movement.

  • Optimized magnet system: Paired with a non-magnetic armature for accurate signal generation.

  • Ultra-pure copper coils: Oxygen-free copper coil wire.

  • 80 µm tracking ability: Measured at 315 Hz with the recommended tracking force.

     


Complete Technical Specifications

Specification

Ortofon MC Diamond

Cartridge type

Moving coil (MC), stereo

Mounting type

Standard ½-inch

Stylus type

Specially polished Nude Ortofon Replicant 100

Stylus tip radius

r/R 5/100 µm

Cantilever material

Solid diamond

Output voltage at 1 kHz, 5 cm/sec

0.2 mV

Channel balance at 1 kHz

0.5 dB

Channel separation at 1 kHz

25 dB

Channel separation at 15 kHz

20 dB

Frequency response, 20 Hz–20 kHz

±2 dB

Tracking ability at 315 Hz

80 µm

Dynamic lateral compliance

11 µm/mN

Tracking force range

2.5–2.8 g (25–28 mN)

Recommended tracking force

2.6 g (26 mN)

Tracking angle

23°

Internal impedance / DC resistance

6 Ω

Recommended load impedance

Greater than 10 Ω

Coil wire material

Ultra-pure oxygen-free copper

Armature

Non-magnetic

Damping system

Re-engineered Wide Range Damping (WRD)

Suspension

Proprietary rubber compound with MWCNT technology

Cartridge body material

SLM titanium

Cartridge color

Silver / Black

Cartridge weight

17.5 g


Diamond Cantilever & Replicant 100 Stylus

The MC Diamond combines a solid diamond cantilever with Ortofon’s specially polished Replicant 100 stylus.

The stylus features a narrow, extended contact profile designed to follow the shape of the record groove accurately. The solid diamond cantilever provides a highly rigid connection between the stylus and generator, supporting fast, precise transmission of groove movement.

 

Carbon-Nanotube Suspension & Wide Range Damping

One of the MC Diamond’s defining technologies is its re-engineered suspension.

Ortofon developed a proprietary rubber compound incorporating Multi-Wall Carbon Nanotube technology for the cartridge’s Wide Range Damping system. The material is designed to improve damping characteristics, reduce unwanted resonance, and maintain stable tracking during demanding musical passages.

 

Selective Laser Melted Titanium Body

The cartridge body is manufactured using Ortofon’s Selective Laser Melting process, which builds the titanium structure layer by layer.

This manufacturing method allows precise control over material density and internal structure, creating a rigid housing with substantial internal damping to reduce unwanted vibration.

 

Compatibility & Installation

The MC Diamond uses standard ½-inch mounting and weighs 17.5 grams. Its relatively substantial mass makes tonearm compatibility and counterweight capacity important considerations.

With a low output of 0.2 mV, the cartridge requires a suitable low-output moving coil phono stage or a properly matched step-up transformer and phono preamplifier.

Ortofon recommends a tracking force of 2.6 grams and a load impedance greater than 10 ohms. Precise alignment is particularly important with the Replicant 100 stylus.

 

Discover Ortofon at The Grid HiFi. Our Houston team can assist with cartridge selection, tonearm 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.