Ortofon 2MR 78

Turntable Cartridge: Ortofon 2MR 78

The Ortofon 2MR 78 cartridge is specially designed for vinyl enthusiasts seeking top performance in the realm of 78 rpm shellac records. This cartridge shares the renowned specifications of the Ortofon 2M 78, with the added advantage of a reduced height to seamlessly integrate with tonearms featuring a low vertical tracking angle (VTA) and no arm height adjustment.

High-Performance Motor System

The 2MR 78 features a cutting-edge motor system, incorporating Ortofon’s four-coil technology and split pole pins. This innovative design integrates two sets of split pole pins and utilizes a strapped output to ensure identical output signal from both sets. This eliminates the need for mono-specific equipment, allowing you to enjoy authentic mono reproduction on any stereo system.

Precision Crafted

The 2MR 78 cartridge body is specially designed to be compatible with turntables and tonearms, such as those from Rega. Meeting the requirements of low-profile cartridges, its narrow body seamlessly integrates without the need for modifications or spacers under the tonearm. This design facilitates quick and easy installation with just two screws.

Spherical Diamond Stylus Tip

The 2MR 78 is equipped with a stylus tip featuring a spherical diamond, ideal for playing 78 rpm shellac records. These unique records demand a larger stylus profile, and the 2MR 78 perfectly meets this requirement, ensuring optimal playback quality while preserving the authenticity of your precious collection.

Effortless Integration

With its thoughtful design and advanced features, the Ortofon 2MR 78 cartridge effortlessly integrates into your turntable setup, delivering authentic and true-to-source sound reproduction. Its compatibility with various systems and ease of installation make it an ideal choice for audiophiles and collectors alike.

Benefits of the Ortofon 2MR 78 Cartridge

• Seamless integration with low VTA tonearms
• Dual-coil technology for consistent mono output
• Narrow cartridge body for easy installation on Rega and similar tonearms
• Spherical diamond stylus tip for optimal playback of 78 rpm shellac records
• Preservation of the authenticity of your precious shellac record collection
• High-performance motor system for superior audio reproduction

Technical Specifications

Main Specifications

• Type: MM (Moving Magnet)
• Diamond: Spherical
• Output voltage at 1,000 Hz, 5 cm/s: 4 mV
• Frequency response: 20-20,000 Hz (+3/-1 dB)
• Tracking ability: 70 µm (315 Hz at recommended tracking force)

Mechanical Parameters

• Dynamic lateral compliance: 18 µm/mN
• Stylus tip radius: 65 µm
• Tracking force:
  • Range: 1.6-2.0 g (16-20 mN)
  • Recommended: 1.8 g (18 mN)
• Tracking angle: 20°

Electrical Characteristics

• Internal impedance: 700 Ω
• Internal inductance: 350 mH
• Recommended load resistance: 47 kΩ
• Recommended load capacitance: 150-300 pF

Physical Characteristics

• Color: black, gray
• Weight:
  • 2MR cartridge: 6 g
  • 2M and 2M Verso cartridges: 7.2 g
  • Pre-mounted 2M cartridge: 16.7 g

Maintenance

• Replacement stylus: 2M 78 (interchangeable with 2M Mono)
• Stylus lifespan: up to 1,000 hours with proper maintenance, without performance degradation