SUMIKO AMETHYST

The Sumiko Amethyst is a moving magnet phono cartridge designed to deliver a superior listening experience, capable of competing with many moving coil options in the same price range. Its construction is inspired by recent Oyster series cartridges—such as the Moonstone, Olympia, and Rainier—from which it inherits a resonance-optimized body that reduces unwanted vibrations and minimizes background noise. Completing this refined structure is a nude line-contact diamond stylus, exceptionally precise and responsive, able to reach the deepest and most intricate parts of a vinyl groove with remarkable grace and control.

During playback, the Amethyst stands out for its fluid and natural dynamics, impeccable clarity, and immersive sonic depth, all set against an ultra-quiet black background that allows every detail to emerge with natural realism. Even through the most complex musical passages, it traces confidently and precisely, delivering vivid sound images that are stable and spatially anchored.

Each Sumiko cartridge is handcrafted in Yokohama, Japan—a coastal city where artisanal care is deeply intertwined with a long tradition of critical listening and meticulous material selection. The production process is carried out by master craftsmen with obsessive attention to detail, ensuring that every component delivers exceptional performance and long-term reliability. The result is a complete range of analog cartridges that meet all listening needs, offering the certainty of finding the perfect match for any audio system.

Technical specifications:

• Mass & Dimensions: 6.5 g; 17.2 x 18.8 x 29 mm (W x H x D)
• Stylus: 0.2 x 0.8 mil Nude Line-Contact
• Cantilever: ⌀0.5 mm aluminum pipe
• Coils: High-purity copper
• Internal Impedance: 700 Ω
• Load Impedance: 47 kΩ
• Frequency Response: 12 Hz – 35 kHz
• Output: 2.5 mV
• Channel Separation: 30 dB @ 1 kHz
• Channel Balance: 0.5 dB @ 1 kHz
• Compliance: 12×10⁻⁶ cm/dyne @ 100 Hz
• Capacitance: 100 pF – 200 pF
• Vertical Tracking Angle: 25°
• Tracking Force Range: 1.8 g – 2.2 g
• Recommended Tracking Force: 2.0 g
• Replacement Stylus: RS Amethyst