Nagaoka JN-555 JN555 Expert Super stylus
The Nagaoka JN-555 stylus private labeled for Expert Super uses the same Ultra-Ex nude stylus and solid carbon black cantilever as the original Nagaoka JN-555 stylus.
The Ultra-Ex stylus offers top performance for stereo to discrete four-channel reproduction, long playing life and clear tonal sound quality. The solid carbon black cantilever with its very high rigidity and very low effective mass, faithfully transmits the most delicate movements of the stylus tip to the magnet. By combining the solid carbon black cantilever with the Ultra-Ex stylus tip, the frequency response range has been widened to cover everything from the subsonic to the supersonic.
Nagaoka JN-555 Expert Super Stylus Specifications
- Type: Stereo moving magnet
- Frequency response: 10Hz-28kHz
- Channel separation @ 1kHz: >20dB
- Output voltage @ 1kHz: 3.3mV
- Channel balance @ 1kHz: 1dB
- Recommended load: 50k ohm
- Stylus: Ultra-Ex
- Cantilever: Solid carbon black
- Dynamic compliance: 10 x 10 -6 cm/dyne/100Hz
- Static compliance: 20 x 10 - 6 cm/dyne
- Tracking force: 1.1 - 1.5 g (Optimum 1.3 g)
[playing two of these on Sansui SR636/Vincent PHO8 and Sansui FR5080/Sansui QRX6001 restored]
This seems to be a nicely made cartridge and stylus - and the stylus itself appears to be 'nude' as described and well shaped, under a low power microscope.
I initially set this to the top of the weight range indicated, for about 10 hours of playing, and then down to the recommended 1.3 grms.
At about 30-35 hours, this sounds very nice indeed - for classical records from several decades.
[Other cartridges I own: AT VM750SH, Ortofon Super OM/Shibata, Shure M91ED/Hi-Track and Vivid Line, Ortofon VMS/FineLine, Sansui SV40X/AT Shibata and Vivid Line]