Description
Urushi is the sap of the Urushi or lacquer tree that is native to Japan, China, and Korea. The sap of this tree contains a resin that polymerizes and becomes a very hard, durable, plastic-like substance when it is exposed to moisture and air. The Japanese art of Urushi is a tradition dating back thousands of years. This natural lacquer is applied to the cartridge body and once the lacquer cures, it hardens around the natural rosewood body, changing its resonant frequency.
The Urushi Black is an 9g stereo moving coil cartridge with a natural Rosewood body, silver plated copper coil wiring, a Samarium Cobalt magnet and Boron cantilever. All Koetsu Urushi models use silver cladded ultra-high purity copper coils. This process involves a silver sheath being slowly drawn over the copper. Many owners say that the Urushi body Koetsus have an even more exciting sonic signature compared to the standard Rosewood models – greater dynamic contrasts and a greater sense of energy.
Reviews
Home Theatre Review, Ken Kessler, 2009
Play some Hendrix, some Otis, some Orbison, some Fogerty via Creedence – all different textures and ranges. This cartridge will let you hear the very nuances that separate real from recorded, why Michael Hobson of Classic Records is right to fight for 200g vinyl and no GrooveGuard, why mono – let alone stereo – isn’t dead. As I wrote 13 years ago, ‘the best CD sound is so far behind the Urushi that it would be comical if the Urushi were affordable.’ Looks like some things don’t change.
Product Specification
Body
- Natural Rosewood with Urushi clear lacquer
Type
- Moving Coil
Coil Wiring
- Silver plated high purity copper
Magnet
- Samarium Cobalt
Cantilever
- Boron
Output Voltage
- 0.4 mV
Frequency Range
- 20Hz to 100kHz
Channel Separation
- 25db / 1kHz
Inner Impedance
- 5 Ohm
Channel Balance
- 0.5db / 1kHz
Recommended Impedance
- 30 Ohm
Weight
- 9g
Recommended Tracking Force
- 1.8 – 2.0g
Compliance
- 5 X 10-6cm / dyne at 100Hz
Recommended Load
- 80-1,000 ohms
Reviews
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