Nagaoka Jeweltone JT-80BK MM Boron Cantilever Cartridge



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Boron Cantilever - Made in Japan

Delicate Highs, Detail but balance Sound
    • cartridge type: moving magnet for hi-fi listening
    • stylus shape: elliptical
    • stylus construction: bonded diamond
    • cantilever material: boron
    • output voltage: 3.0 mV
    • frequency response: 20 Hz - 20 kHz
    • channel separation: 25 dB
    • tracking force: 1.5 g
    • cartridge weight: 6.7 g
    • replaceable stylus: yes
    • upgradeable stylus: no

Founded in 1940 and originally starting out in precision watchmaking and clock parts, the company transitioned into micro-manufacturing jewels and diamond styli. They are an influential global supplier of leading audio brands.

Moving Permalloy (MP) System: Unlike typical Moving Magnet (MM) or Moving Coil (MC) designs, Nagaoka's signature MP series uses a lightweight piece of magnetized permalloy instead of a heavy magnet. This lowers the moving mass, allowing the stylus and cantilever to track record grooves with greater accuracy and clarity.
In-House Manufacturing: Nagaoka builds its parts—including diamond tips, cantilevers, coils, and magnets—entirely in-house.
Replaceable Stylus: Users can easily swap out worn or upgraded needle assemblies on the MP and JT series cartridges.

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