Technical details
| Frequency range |
20 - 25000 Hz |
| Tracking force range |
3 - 5 g |
| Channel separation (1 kHz) |
20 dB |
| Channel balance (1kHz) |
1 dB |
| Tracking force recommended |
4 g |
| Load resistance |
2 Ω |
| Impedance |
10 Ω |
| Stylus tip radius |
18 µm |
| Channel separation (15 kHz) |
10 dB |
| Voltage |
200 mV |
| Tracking angle |
20 ° |
20-20000 Hz, 200 µV, 2 Ohm, 32 g, Nickel/Black
The SPU is the only Ortofon stereo cartridge that has survived since 1959 and from all over the world gained a reputation second to none for an outstanding analogue sound reproduction
The original SPU model, engineered by Mr. Robert Gudmandsen in 1959, introduced low coil impedance concept. As a basis for reproducing superb highfrequencies, this concept has been improved and refined in the decades since.
In the early sixties Ortofon was the moving coil manufacturer with the SPU range comprising three models: E (elliptical stylus), G (standard SME-fit G-shell) and T (with or without step-up transformer). Over time the SPU in a G housing prevailed and gradually became the popular SPU Classic.
The SPU Classic was reintroduced in 1987. The model of 1987 was incrementally improved since its inception in 1959, as new materials, manufacturing techniques and processing technologies were developed, though 18μm Nude spherical stylus and Aluminium-Magnesium alloy housing remained untouched. However and in spite of these developments, Ortofon has over the years been very conscious of preserving fundamental elements in the construction responsible for the basic SPU sound. All processes are still made manually.
The SPU Classic embodies the essence of the original Moving Coils and is known for its dynamic and powerful sound reproduction where the special SPU character is most pronounced and original
Equipped with Nude spherical stylus the cartridge has sound that is both rich and silky. With its linearity and full body, SPU Classic has remained a favorite throughout the years, both for modern and vintage high-end applications. This cartridge is a perfect solution for the playback of both early and modern and contemporary stereo recordings.
The SPU Classic series embodies the essence of the original Moving Coils and are a perfect solution for the playback of both early and modern and contemporary stereo recordings.
