Ortofon OM1S Moving Magnet Cartridge
The OM 1S has been developed to give as many people as possible access to the superior audio reproduction Ortofon are recognised for worldwide.
Based upon the established OM 5E design the OM 1S is an Optimum Match (OM) cartridge, which means it integrates onto most tonearms effortlessly. Supplied with a high-performance Spherical stylus, the body can be upgraded with improved styli from the OM range - offering affordable and convenient upgrades for the future.
The Moving Magnet technology used for the generator system means most phono stages will easily work with the OM 1S.
With the OM 1S cartridge you can instantly hear the improvement over inferior designs, bringing whole new dimensions to your musical performance.
Introductory overhead mount cartridge
Optimised sound reproduction
Spherical stylus profile
Easy tonearm matching
Please note, there is no direct replacement stylus for this unit; the nearest match is an Ortofon Stylus 5E, but any OM-series stylus will fit in this body, including the Stylus 78.
Output Voltage (at 1kHz, 5cm/sec): 4.5mV
Channel Balance at 1kHz: 2dB
Channel Separation at 1kHz: 20dB
Channel Separation at 15kHz: 12dB
Frequency Range (at -3dB): 20Hz - 20kHz
Frequency Response: 20Hz - 22kHz
Tracking Ability at 315Hz: Typically 60μm
Compliance, Dynamic, Lateral: 20μm / mN
Stylus Type: Spherical
Stylus Tip Radius R: 818μm
Tracking Force Range: 1.5 - 2.0g (16 - 20mN)
Recommended Tracking Force: 1.75g (17.5mN)
Tracking Angle: 20º
Internal Impedance / DC Resistance: 750Ω
Internal Inductance: 450mH
Recommended Load Resistance: 47kΩ
Recommended Load Capacitance: 200 - 500pF
Cartridge Colour Body / Stylus: Black / Black
Cartridge Weight: 5g
Replacement Stylus Unit: Stylus 5E