Nagaoka JN-P700

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Nagaoka JN-P700 replacement stylus for the Nagaoka MP-700 cartridge

Nagaoka celebrates its 85th anniversary with the launch of the MP-700, a phono cartridge that embodies the essence of years of technical perfection. This new model is the pinnacle of a tradition that traces its origins to Japanese fine mechanical watchmaking and offers a rare combination of technological innovation, mechanical finesse, and unparalleled sound reproduction. The MP-700 was presented for the first time worldwide at High End Munich 2025, where ALBEPRO was present as the official partner of NAGAOKA.
The MP-700 represents the latest advancement in the renowned Moving Permalloy (MP) series, an alternative technology that distinguishes itself from traditional Moving Magnet (MM) and Moving Coil (MC) designs.

The MP Series Moving Permalloy Technology: Nagaoka’s Signature

Unlike other manufacturers who rely on tried-and-tested designs, Nagaoka continues to follow its own path with the exclusive "Moving Permalloy" principle (MP). Instead of the conventional magnet movement found in most MM cartridges, the MP-700 utilizes a permalloy component—a special alloy of nickel and iron with excellent magnetic properties—that is attached to the cantilever. By significantly reducing the moving mass, the stylus can track even the smallest groove variations more accurately, resulting in an exceptionally detailed and refined sound reproduction.

This innovative technology is the result of Nagaoka’s craftsmanship since 1947, positioning the brand as a pioneer in phono cartridge production. With more than 90% of its styluses manufactured in the workshop in Higashine, Japan, Nagaoka has full control over every step of the process, from material selection to final assembly.

Boron Cantilever and MicroRidge Stylus: Perfection in Detail

At the heart of the MP-700 is a boron cantilever, which is both stiff and light, enabling it to transfer groove vibrations accurately without distortion or unwanted resonance. Combined with a naked MicroRidge stylus, ground from diamond (0.12 x 0.3 mil), this system can capture even the most subtle details of your records, even with the most demanding pressings.

The MicroRidge geometry is known for its ability to trace the groove shape across the full depth, ensuring impressive high-frequency reproduction while simultaneously minimizing vinyl wear. The combination of these advanced materials and design techniques places the MP-700 on the same level as the best MC cartridges in terms of resolution and neutrality.

Exquisite Suspension and Stabilization Systems: The Balance Between Speed and Control

One of the greatest challenges in designing a high-end phono cartridge is achieving the perfect balance in the suspension system. Nagaoka has chosen an exceptionally soft damper, making the stylus fast and responsive. To prevent instability, this is compensated by an ingenious suspension wire system, which provides precise control over the cantilever’s movement. This system is rare in the MM cartridge market and offers noticeable advantages in sound reproduction, such as improved frequency separation, a clearer sound spectrum, and a natural rendering of tonal colors—from the deepest bass to the brightest highs.

Ultra-Duralumin Chassis and Surface Treatment: Protection Against Interference

The MP-700 is not only designed for optimal sound quality but also for long-lasting performance. The chassis of this cartridge is made from ultra-duralumin, a high-strength aluminum alloy that offers exceptional strength and durability. It undergoes a three-step surface treatment: nickel plating, black tinning, and an insulating coating. These treatments reduce static interference, improve heat dissipation, and ensure a longer product lifespan. Additionally, they contribute to the electromagnetic neutrality of the cartridge, maintaining the integrity of the audio signal even in the most demanding environments.

Why the MP-700 is the Best in Its Class

The Nagaoka MP-700 is a technical masterpiece, born from 85 years of Japanese craftsmanship and dedication to sound quality. With its innovative Moving Permalloy technology, advanced cantilever and stylus designs, and robust, carefully engineered chassis, the MP-700 offers a listening experience that is virtually unmatched. For audiophiles seeking the best in vinyl playback, the MP-700 is undoubtedly an investment in sound precision, durability, and quality.

Specifications can be found under the Specifications tab.