Ortofon OM 5S MM Moving Magnet Cartridge

The Ortofon OM 5S is an entry-level moving magnet (MM) cartridge specifically designed for everyday vinyl playback, belonging to Ortofon's classic OM 5 series. Its durability, affordability, and easy upgradeability make it an ideal starting point for many vinyl enthusiasts venturing into high-quality analog audio.

Product Information and Design Features

The OM 5S features a standard half-inch mount design and comes with a removable weight plate. With the weight plate installed, the total weight is approximately 5g, suitable for most tonearms; when removed, it weighs only 2.5g, perfectly matching low-mass tonearms to ensure optimal tracking and sound performance. The cartridge body has a simple and sturdy design, making installation and alignment quite easy, and it is compatible with most standard tonearms and phono preamplifier systems.

Technology and Materials

• Stylus Type: Spherical diamond stylus, stylus tip radius R 18 µm
• Tracking Force Range: 1.5–2.0 g, recommended tracking force 1.75–1.8 g
• Output Voltage: 4.5 mV (1 kHz, 5 cm/sec)
• Frequency Response: 20–20,000 Hz
• Channel Separation: 20 dB (1 kHz)
• Channel Balance: 2 dB (1 kHz)
• Tracking Ability: 60 µm (315 Hz)
• Dynamic Compliance: 20 µm/mN
• Internal Impedance: 750 Ω
• Recommended Load: 47 kΩ, capacitance 200–500 pF

The OM 5 series is one of Ortofon's lightest moving magnet cartridge series. The spherical stylus has a simple and durable structure, suitable for daily playback, and causes relatively less wear on records. Additionally, the OM series features an interchangeable stylus design. In the future, users can significantly improve sound performance by simply replacing it with a higher-grade stylus (such as Stylus 5E, 10, 20, etc.) without having to replace the entire cartridge, offering great upgrade flexibility.

Sound Performance

The OM 5S delivers a robust, balanced, and musical sound. The bass is solid and powerful, the midrange is natural and clear, and the treble is not overly sharp, providing an overall lively and engaging listening experience. After proper break-in, details and dynamics will further improve, offering a vivid and infectious listening experience. As an entry-level cartridge, it achieves an excellent balance between price and performance, making it suitable for pleasant daily listening across various genres, be it pop, rock, jazz, or classical.

User Reviews

Many users have given positive feedback on the OM 5S, noting that it "performs well right out of the box, and after break-in, the sound becomes quite excellent, rich in detail, lively, and engaging." Reviews also highlight its "affordable price and solid, reliable sound, making it a very worthwhile option for entry-level vinyl systems," and particularly appreciate its upgradeable stylus design, which allows users to gradually improve sound quality as their system evolves.

The Ortofon OM 5S is suitable for music enthusiasts new to vinyl or those looking to achieve reliable playback quality on a reasonable budget. It is not just a durable entry-level cartridge, but also a convenient gateway to the higher-end sound world of Ortofon.