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Sumiko Amethyst Moving Magnet Phono Cartridge

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Sumiko Amethyst Moving Magnet Phono Cartridge

Our Oyster MM Cartridges

Our Oyster Series cartridges have established themselves as smooth, warm and refined alternatives to more aggressive-sounding options. They are exceptionally crafted with premium materials, enabling highly musical, poised and polished sonics that steer clear of listening fatigue. An integrated body and generator system stifles internal resonance and readily transfers uncontrolled energy from the cartridge to the tonearm where it is dissipated harmlessly. This reduces distortion and coloration, leaving you with pure analog fidelity that conveys the emotional message embedded in your music.

 

Upgrade Path

Rainier, Olympia, Moonstone, Wellfleet and Amethyst use interchangeable stylus replacements. This allows you to upgrade when it suits you, or to keep a backup around for worn records. The cartridge bodies are identical with the exception of Amethyst, which uses an enhanced anatomy but remains compatible with the full range of styli. As you move up, you achieve improved fidelity with varying cantilevers, magnets and stylus tips, all of which bear audible improvements in detail, imagining, resolution and more.

 

Handmade in Japan

Each Sumiko phono cartridge is hand-assembled by the world-class cartridge makers at Excel Sound in Yokohama, Japan – a relationship we’ve proudly maintained for nearly forty years. We use only the finest materials that combine to deliver performance that has enlightened generations of listeners. Each design is thoroughly auditioned until it meets our stringent standards for sound. Production is then executed by expert craftsmen with a collective eye for precision & quality. The result is a family of cartridges that render emotion through tonally balanced, refined and fatigueless analogue reproduction.

Featuring an improved low-impedance, low-noise generator, Amethyst renders stark black backgrounds from which music simply blossoms. To do justice to the improved generator, we add a low-mass nude line-contact stylus to an ultra-stiff, low-mass hollow cantilever. The overall reduction in moving mass propels the highest level of stylus fidelity, faithfully conveying its motion to the fixed coil assembly. Thusly Amethyst transcribes vivid detail, wowing dynamics and exceptional spacial imaging in an inviting, articulate soundstage. Music flows effortlessly with compelling depth, immersing you in the richness we all love about analogue sound.

Click here to read a review of the Sumiko Amethyst on the Novo Website

 

 

 
Featuring an improved low-impedance, low-noise generator, Amethyst renders stark black backgrounds from which music simply blossoms.
To do justice to the improved generator, we add a low-mass nude line-contact stylus to an ultra-stiff, low-mass hollow cantilever.
The overall reduction in moving mass propels the highest level of stylus fidelity, faithfully conveying its motion to the fixed coil assembly
. Thusly Amethyst transcribes vivid detail, wowing dynamics and exceptional spacial imaging in an inviting, articulate soundstage. Music flows effortlessly with compelling depth, immersing you in the richness we all love about analog sound.
 
 
Mass & Dimension
 
 
 

 
 
Stylus
 
Nude Line-Contact (0.2 x 0.8mil)
 
 

 
 
Cantilever
 
⌀0.5mm Aluminum Pipe
 
 

 
 
Coils
 
High-Purity Copper
 
 

 
 
Internal Impedance
 
700Ω (1kHz)
 
 

 
 
Load Impedance
 
47kΩ
 
 

 
 
Frequency Response
 
12Hz – 35kHz
 
 

 
 
Output
 
2.5mV (3.54cm/sec, 1kHz)
 
 

 
 
Channel Separation
 
30dB (1kHz)
 
 

 
 
Channel Balance
 
0.5dB (1kHz)
 
 

 
 
Compliance
 
12×10-6cm/dyn (100Hz)
 
 

 
 
Capacitance
 
100pF – 200pF
 
 

 
 
Vertical Tracking Angle
 
25°
 
 

 
 
Tracking Force Range
 
1.8g – 2.2g
 
 

 
 
Recommended Tracking Force
 
2.0g
 
 

 
 
Replacement Stylus Unit
 
RS Rainier, Olympia, Moonstone, Wellfleet, Amethyst or RS 78

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