ORTOFON DJ Stylus Pro A
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Information
Information
Manufacturer Information
Ortofon
https://www.ortofon.com
support@ortofon.dk
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SOGETRONIC
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A Replacement Diamond in Ortofon's "Pro" Spirit
The Stylus Pro A is a replacement diamond designed to restore the original performance of a Pro A cartridge, with a focus on robustness and reliability for DJ use.
For Which DJs and Uses?
This diamond is intended for DJs who play on vinyl turntables in clubs, mobile events, or home practice, and who want a reliable stylus capable of handling a tracking force adapted to mixing and manipulation.
Features and Innovations
With its spherical tip (radius R 18 µm) and a tracking force range of 3.0 to 5.0 g (recommended 4.0 g), this diamond prioritizes groove holding and consistency. The stated frequency response covers 20 to 20,000 Hz, with channel separation of 20 dB at 1 kHz (15 dB at 15 kHz), and electrical parameters designed for a standard phono load (47 kOhm, capacitance 200 to 600 pF).
Technical specifications
| DJing type | Mix | Diamond tip | spherical |
| Category | diamond | Color | Grey |
| Type | diamond | Quantity | 1 |
| Destination | DJ | ||
| Output voltage at 1000 Hz, 5 cm/sec | 5 mV | Tracking force range | 3.0-5.0 g (30-50 mN) |
| Frequency range at -3 dB | 20-20,000 Hz | Recommended tracking force | 4.0 g (40 mN) |
| Frequency response | 20-20,000 Hz +/-3 dB / -2 dB | Tracking angle | 20 degrees |
| Channel balance at 1 kHz | 1.5 dB | Resistance | 750 Ohm |
| Channel separation at 1 kHz | 20 dB | Inductance | 450 mH |
| Channel separation at 15 kHz | 15 dB | Impedance | 47 kOhm |
| Tracking ability at 315 Hz at recommended force | 70 µm | Capacitance | 200-600 pF |
| Dynamic compliance | 7 µm/mN | Compatible with cartridges | Concorde Pro A |
| Tip type | spherical | Compatible with the case | Concorde Twin Pro A |
| Tip radius | R 18 µm | ||
Questions frequently asked
Is the Ortofon DJ Stylus Pro A compatible with the Concorde Pro A?
This replacement stylus is compatible with the Concorde Pro A cartridge and the Concorde Twin Pro A set.
What tracking force should be set with this stylus?
The recommended tracking force is 4.0 g, or 40 mN. The acceptable adjustment range is from 3.0 to 5.0 g.
Spherical tip R 18 µm: what DJ use?
The spherical tip with an 18 µm radius is designed for mixing. Its tracking ability reaches 70 µm at 315 Hz with the recommended tracking force.
What frequency response does this stylus offer?
The frequency response covers 20 Hz to 20,000 Hz, with a stated tolerance of +3 dB/-2 dB. Channel separation is 20 dB at 1 kHz and reaches 15 dB at 15 kHz.
What phono load should be used with the Stylus Pro A?
It is intended for use with a load impedance of 47 kOhm and a capacitance between 200 and 600 pF.



