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Very rare and very hard to find NEW OLD STOCK Ortofon SPU 85 Anniversary MC cartridge.
SPU 85th Anniversary
The Ortofon SPU 85th Anniversary was launched in 2003 to celebrate Ortofon 85 year anniversary.
This SPU cartridge was only produced in a limited number of 500 units. An idea was to create an outstanding kind of housing made of Japanese Hida Beech wood, famous for its strength and hardness. For the exclusive surface treatment the 6000 years old Japanese Urushi lacquer method was chosen in order to achieving a hard, resistant, and beautiful multilayer surface in a dark maroon color.
Additionally, in order to influence sound from the motor system, Ortofon has succeeded in developing a new wire concept for the armature windings called ˇ§AUCURUMˇ¨. The basic material here is a specially developed composite consisting of a very pure copper and gold, creating high conductivity and environmental resistance.
The benefits of wooden housing
The expectations about influence on sound reproduction from this very beautiful anniversary design (yet with all the previous classic elements preserved in the motor system) had to be examined by the Ortofon Listening Panel. SPU 85 prototypes were made to be compared to SPU systems mounted in standard metal housing with the same motor system. The Panel proclaimed: Very charming, open, dynamic, straightforward, and present intermediate tone range between 200 and 1500 Hz typical for the SPU sound. The wooden housing first of all seems to have strong influence especially in the range from say 4000 Hz and up, resulting in a very pleasant integration with intermediate frequency range compared to the metal housing. The musical integrity obviously tends to be improved by the lower Q for resonance in the wooden housing compared to the metal.
SPU 85th Anniversary Technical data
Output voltage: 0.4mV at 1000 Hz, 5cm/sec.
Channel balance: <1.5dB at 1 kHz
Channel separation: >23dB at 1 kHz
Frequency range: 20~30,000 Hz at -3dB
Frequency response: 20~20,000 Hz +2 / -1 dB
Tracking ability: 80um at 315Hz lateral
Compliance: 8um/mN dynamic, lateral
Stylus: Nude ellipticall
Stylus radius: r/R 8/18 µm
Stylus pressure range: 3.0~4.0 gram (30 - 40 mN)
Recommended: 3.5 gram
Tracking angle: 20 degree
Internal impedance: 3.5 ohm DC resistance per channel
Recommended load impedance: 50~100 Ohm
Cartridge body material: Hida Beech wood with Urushi lacquer method
Cartridge colour: Dark maroon
Net weight: 28 gram |
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| Goods sold are not returntable. Subject to terms and conditions exchange of goods can be considered. |
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