Ortofon A90 MC Phono Cartridge - Serviced

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This A90 just came back from the experts over at VAS (Vinyl Audio Science) where it received a clean bill of health.

MSRP $4200

More from Ortofon:
The Ortofon MC A90 establishes a new standard for analog performance. Music lovers will experience a truly organic presentation. The A90’s structure is virtually impervious to external resonance, allowing for unbridled reproduction of even the most minuscule details and extreme dynamics.

The A90’s Boron cantilever and high-polished Ortofon Replicant 100 stylus allows for superior tracking of even the finest groove modulations. While hyper-detailed, the A90 also exhibits a sense of musical ease, recreating the natural tonal textures that make music sound real.

One of the most modern designs and best sounding phono cartridges made at any price!

At the heart of the new MC A90 lies a revolutionary customized Selective Laser Melting (SLM) manufacturing procedure in which micro particles are laser-welded together, layer by layer.

This high technology and high precision process eschews traditional techniques in order to provide an increased rigidity and body density, which gives an even bigger reduction of unwanted resonances while maintaining the exact figures for the cartridge mass. 

The Selective Laser Melting manufacturing technique (SLM) also enables the consolidation of components to allow for a design devoid of unnecessary material. In this case, all of the essential components are built directly into the one-piece body, including the magnetic system (including the moving parts), the terminal block, and the silicone rubber wire guard.

The design has been strictly kept to only the crucial parts, creating a unique, distinctive aesthetic which is as functional as it is attractive. 

The magnet configuration that graces the A90 takes its inspiration from the acclaimed MC Windfeld, known throughout the world for its remarkably neutral and honest character.

This superb generator system is not only lighter and more compact, but through the Field Stabilising Element (FSE) it can ensure that the force field remains stable regardless of movements of the armature. 

The FSE consists of a small cylinder of silver plated copper placed inside of the magnetic system. Sonically the FSE has substantial benefits in particular by reducing the dynamic distortion and the intermodulation to an absolute minimum.

The FSE plays a tremendous part in the remarkable dynamics of the A90, by ensuring that every detail will be delivered with striking accuracy and plenty of space between each instrument in the recording. 

This simply results in more drama and a greater breadth, height and depth of the sound and stereo image.

Wide Range Damping system
Adding to the list of important components is Ortofon’s patented Wide Range Damping system (WRD). In this system, a small, heavy platinum disc is sandwiched between two rubber absorbers, both with different properties. This not only ensures that an exceptional tracking performance is maintained, but also ensures perfect damping through the entire frequency spectrum. Because of this, the distortion and resonance are virtually eliminated entirely.

The WRD system, which was originally introduced in the MC 30 in 1979 and was also used in the MC Windfeld and many of Ortofon’s other top-tier cartridges, is one significant reason why the MC A90 tracks a fantastic 100 µm at a vertical tracking force of 2.3 grams, while simultaneously achieving the most linear frequency response and the highest upper frequency limit ever.

Specifications:
Output: 0.27mV 
Channel balance: < 0.2 dB 
Channel separation: 28 dB 
Frequency range at - 3dB: 10Hz-80kHz 
Tracking ability: 100 µm 
Compliance: 16 µm/mN 
Stylus type: Special Polished Nude Ortofon replicant 100 on Boron cantilever
Stylus tip radius: r/R 5/100 µm 
Tracking force range: 2.0-2.5g
Tracking angle: 23° 
Internal impedance: 4 Ohm 
Recommended load impedance: >10 Ohm
Body material: SLM Stainless steel
Body color: Black
Cartridge weight 8g