Ortofon OM 5S (Spherical Diamond)

The Ortofon OM 5 series encompasses three basic cartridges: OM 5S, OM 5E and Super OM 5E.

• The series is the lowest-mass range of moving magnet cartridges offered by Ortofon.

• The OM cartridges bodies have been designed to provide easy mounting and alignment on both top mount and bottom mount headshells.

• The OM 5 Series provides excellent compatibility when used in an assortment of playback systems and with a wide variety of phono preamps.


OM 5S Technical data

Output voltage at 1000 Hz, 5cm/sec. - 4.5 mV
Channel balance at 1 kHz - 2 dB
Channel separation at 1 kHz - 20 dB
Channel separation at 15 kHz - 12 dB
Frequency range at - 3dB - 20-20.000 Hz
Frequency response - 20-22.000 Hz
Tracking ability at 315Hz at recommended tracking force *) - 60 µm
Compliance, dynamic, lateral - 20 µm/mN
Stylus type - Spherical
Stylus tip radius - R 18 µm
Tracking force range - 1.5-2.0 g (15-20 mN)
Tracking force, recommended - 1.75 g (17.5 mN)
Tracking angle - 20°
Internal impedance, DC resistance - 750 Ohm
Internal inductance - 450 mH
Recommended load resistance - 47 kOhm
Recommended load capacitance - 200-500 pF
Cartridge colour, body/stylus - Black/Black
Cartridge weight incl. extra weight - 5 g
Cartridge weight excl. extra weight - 2.5 g
Replacement stylus unit - Stylus 5S
*) Typical value