MC Rondo Blue
and further optimisation have produced the greatest sounding magnetic cartridges
Ortofon MC Rondo Blue Phono
The Rondo Blue cartridge sound is defined to be more expressive and will distinguish higher from lower pitched instruments- yet well controlled by the influence of wooden material. The Nude FG 70 diamond is here mounted on a cylindrical aluminum cantilever again revealing a very flat frequency response passing 20 kHz including very high tracking ability at recommended tracking force of just 2, 3 gram.
We find the sound picture will tend to suit customers liking orchestral music as well as smaller groups of instruments like chamber music smaller choirs and solo instruments.
Recommended load- depending on volume or dynamic in music might be around 50 Ohm or even lower
Ortofon was founded in 1918 by two
Danish engineers, Axel Petersen and Arnold Poulsen. These two pioneers had one
very clear objective
in mind - to put sound onto film, and with this, they established the Electrical
pany A/S, which later on was renamed Ortofon A/S. A few years later, in the
Palace Theatre, Copenhagen, they were able to present the first
fully-synchronized sound films and in so doing, created a world sensation.
Ortofon was also the first company to
produce an outdoor sound film recording. The founders
took out several patents and issued licences to film companies the world over
for their "System Petersen og Poulsen", which is even to this day the basis for
film with optical sound.
Until the second world war, Ortofon's
growth was based entirely on the sound film. However, during the war and
immediately afterwards, production was re-organized to include record cutting
and reproducing equipment. The first Moving Coil cutterhead was produced as
early as 1945, and the Moving Coil principle was then further developed to
enable production of, first, mono cartridges and, later, also stereo cartridges.
During this busy period of growth,
equipment was also being developed for broadcasting networks and recording
studios. It was not until later that the Company decided to specialize solely in
the development and production of cartridges. Unique experience at both ends of
the recording sequence results in unsurpassed performence from every Ortofon
Nothing demonstrates more convincingly Ortofon´s commitment to be the world´s last cartridge manufacturer than the ongoing development of new state-of-the-art models, and Ortofon will continue to refine upon the level of sound quality attainable from analogue recordings. Since 1948 Ortofon has introduced about 100 different moving coil models, and more are to follow. Contrary to other types of phono catridges, the moving coil principle is not suited for mass production. Each of the four coils contains between 11 an 24 turns of wire, depending on model, and has to be wound by hand under a microscope. The wire itself is much thinner than a human hair. The high degree of craftsmanship involved is one of the "secrets" behind Ortofon's reputation
Ortofon MC Rondo Blue Phono Cartridge Specifications:
|Output voltage at 1000 Hz, 5cm/sec.||500 µV|
|Channel balance at 1 kHz||1,5 dB|
|Channel separation at 1 kHz||25 dB|
|Channel separation at 15 kHz||18 dB|
|Frequency range at - 3dB||20-35.000 Hz|
|Frequency response ||20-20.000 Hz ±1,5 dB|
|Tracking ability at 315Hz at recommended tracking force *)||85 µm|
|Compliance, dynamic, lateral||15 µm/mN|
|Stylus type||Nude FG70, aluminium cantilever|
|Stylus tip radius||r/R 5/70 µm|
|Tracking force range||2-2,5 g (20-25 mN)|
|Tracking force, recommended||2,3 g (23 mN)|
|Internal impedance, DC resistance||6 Ohm|
|Recommended load impedance||10-200 Ohm|
|Cartridge body material||Grinded wood/Resin comp.|
|Cartridge weight||10,5 g|
MC Rondo Blue Cartridge with stylus
- Nice presentation box
- Stylus Brush
- Headshell Links
- Instruction Manual
- Specifications sheet
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350gr packed 160gr net
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