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AnalogCartridgesDiscontinued
Estimated price (community-sourced)
$150
Around — community and catalog average, updates slowly
About the OM 20
The OM 20 is a moving-magnet phono cartridge in Ortofon’s OM Series, designed for half-inch mounting and compatible with the OM 20 replacement stylus. It uses a nude elliptical diamond stylus and has a 5 g cartridge weight. Manufacturer specifications list a 4 mV output, 20 Hz–22 kHz frequency response, and a recommended tracking force of 1.5 g.
Specifications
Type: Moving magnet (MM); Output voltage: 4 mV (at 1 kHz, 5 cm/s); Frequency response: 20 Hz–22 kHz; Channel balance: 1.5 dB; Channel separation: 25 dB (at 1 kHz); Tracking ability: 80 µm (315 Hz, lateral); Dynamic lateral compliance: 30 µm/mN; Stylus: Nude elliptical; Stylus tip radius: r/R 8/18 µm; Tracking force range: 1.25–1.75 g; Recommended tracking force: 1.5 g; Vertical tracking angle: 20°; DC resistance: 800 Ω; Internal inductance: 450 mH; Recommended load resistance: 47 kΩ; Recommended load capacitance: 200–500 pF; Cartridge weight: 5 g