Description
The Ortofon OM 20 cartridges
- 1/2 inch system for ultra-light to medium-weight tonearms
- Description: Ortofon OM 20 original or Ortofon OMB-20
Technical data
- Output voltage at 1000 Hz, 5cm/sec.: 4 mV
- Channel balance at 1 kHz: 1,5 dB
- Channel separation at 1 kHz: 25 dB
- Frequency response: 20-22.000 Hz
- Tracking ability (315Hz, lateral): 70 µm
- Compliance, dynamic (lateral): 25 µm/mN
- Stylus type: nude elliptical
- Stylus tip radius: r/R 8/18 µm
- Tracking force range: 1,25-1,75g
- Recommended tracking force: 1,5 g
- Tracking angle (vertical): 20°
- Internal impedance, DC resistance: 800 Ω
- Internal inductance: 450 mH
- Recommended load resistance: 47 kΩ
- Recommended load capacitance: 200-500 pF
- Cartridge weight: 5 g (p)
The system is supplied as a bulk set, i.e. you will receive the system body together with the needle in a compact plastic box without screwdriver.
All OM models have the same body, construction and magnetic circuit. The only difference is the exchangeable needle carrier unit, i.e. you are welcome to start testing with this system and “upgrade” to OM 30 or OM 40 at any time.








