Description

Omnia Jico J44A-7 Headshell, Cartridge & Stylus w/ Synthetic Diamond (SD Tip)  – SINGLE – Blue 

Finally! A replacement for the ubiquitous, the best, the Shure M-447 cart & stylus has arrived. Jico Japan's precision technology & dedication to craft ensures this exceeds all expectations.

The new Jico J44A 7 DJ Cartridge Single is designed to faithfully reproduce the powerful bass frequencies and smooth output of the original Shure M44-7 cartridge and N447 stylus, but with an enhanced and longer lasting full diamond stylus tip (instead of bonded).

Original Shure 4447 Cartridges and Stylus are also fully interchangeable with the current Jico range.

Nude Vs. Synthetic Tip Info:

Synthetic Diamonds refer to diamonds that are artificially created and share the same chemical composition, crystal structure, and optical/physical properties as Natural Diamonds. Natural Diamonds vary in hardness due to their natural formation, whereas Synthetic Diamonds offer the advantage of consistent hardness. Synthetic Diamonds are more affordable compared to Natural Diamonds and their supply is stable, making them suitable for a wide range of applications.

[Features]
・SD Tip (Synthetic Unplated Diamond Tip) has a full diamond structure like the NUDE Tip (Natural Unplated Diamond Tip).
・The tip's diameter is φ0.25mm, the same shape as Bonded Diamond tips. ・It possesses the same hardness as Natural Diamonds.
・The tip shape is conical and the lifespan is approximately 200 hours.

How long does a stylus last?

Unfortunately, there is no definitive answer to this question. Nagaoka quote 150-200 hours before damage to the grooves sets in for their elliptical styluses. Ortofon states that their affordable DJ-style “bonded” type diamonds reach about  600-1000 hours of stylus life while HiFi cartridges with Nude diamonds are expected to far exceed 2,000 hours with proper care and maintenance. Meanwhile, some of the very exotic brands quote even higher numbers.

 

Specifications

  • Headshell – Black
  • Cantilever – Aluminum
  • Cartridge number – M44-7
  • Color – Blue
  • Tip – SD Conical Stylus
  • Tracking Force – 3.5 – 4.5 g
  • Type – Moving Magnet
  • phono height : 16mm
  • frequency range 20 Hz – 20 kHz 
  • weight : 5.6g
  • output voltage 8 mV (1kHz, 5cm/sec.)
  • Recommended Load : 47 KΩ

Please see an independent review below of the SD tip: