Launched at High End 2019 in Munich, Ortofon’s new flagship phono cartridge, the MC Anna Diamond, is similar to the previous Anna MC model except that this new model has a cantilever made of diamond, instead of boron.
‘The improvements Ortofon has realised by using a diamond cantilever have redefined the boundaries of analogue reproduction, enabling greater inner detail, subtlety, and depth like never before,’ said Sam Encel, of Interdyn, which distributes Ortofon in Australia. ‘It also enables the best interface with the Replicant diamond stylus, which, because it’s the closest in shape to the cutting stylus of any stylus profile type, can trace with unparalleled accuracy.’
The new Ortofon MC Anna Diamond’s outer housing is made of titanium, using the selective laser melting (SLM) manufacturing technique pioneered by Ortofon. It welds fine particles of titanium together, layer-by-layer, to construct a single-piece body, which enables precise control of the density of the body material, allowing for extremely high internal damping. The new MC Anna Diamond has a high-efficiency magnetic system that uses both neodymium and iron-cobalt magnetic materials and a new optimised magnetic system geometry. ‘This optimised magnet system allows for the use of a lightweight, non-magnetic armature, which improves the MC Anna Diamond’s dynamics,’ Encel told Australian Hi-Fi Magazine. ‘This is made possible because the specially designed precision moulded non-magnetic armature does not alter the magnetic field during movement and so in combination with the ultrapure oxygen-free copper coil wires, it delivers perfect reproduction of the cantilever movements without compromise.’
Ortofon says the MC Anna Diamond’s d.c. resistance of 6Ω makes it, according to the company, ‘a perfect partner for most moving-coil phono preamps and step-up transformers, including the Ortofon ST-80 SE MC transformer.’
Danish manufacturer Ortofon named this cartridge to honour Russian soprano Anna Yuryevna Netrebko, who famously and fortuitously worked as a janitor at the Mariinsky Theatre whilst she was studying music at the nearby Petersburg Conservatory. She later made her operatic debut at the Mariinsky, having won the role as Susanna in The Marriage of Figaro, after being recognised by conductor Valery Gergiev during auditions.
Each MC Anna Diamond comes in a hand-made box carved from Japanese oak, with a lid whose hinges are carved from Japanese maple. The box is lacquered using Japan’s ‘Urushi’ technique, which is said to be 6,000 years old.
Manufacturer’s Specifications: Ortofon MC Anna Diamond
Frequency Response: 20Hz–20 kHz ±1.5.dB
Channel Separation: 25dB (@ 1 kHz)
Channel Balance: 0.5dB (@1 kHz)
Output Voltage: 0.2mV (@1kHz, 5cm/sec)
Stylus: Polished Nude Ortofon Replicant 100
Stylus Tip Radius: r/R 5/100 µm
Compliance: 9 µm/mN (dynamic, lateral)
Tracking Force: 2.4g (recommended)
Tracking Angle: 23°
Tracking Ability: 80µm (@315Hz)
DC resistance: 6Ω
Recommended load impedance: >10Ω
Body Material: SLM Titanium
For information about pricing and availability, contact Interdyn