Ortofon 2M 78, 2M 78 Verso and 2M 78 PnP

The 2M 78 Series – the true MONO from Ortofon!

The 2M Series of cartridges is designed for precise and accurate retrieval of the information in the record groove. Our philosophy is to play the record sound as accurate as possible, without coloring the sound.
The name 2M was selected from several ideas. We wanted a modern name that would be easy to pronounce and remember, and therefore an alphanumerical name was chosen. 2M means MM, which is the abbreviation for moving magnet.
The 2M series of cartridges features Ortofon’s trademark split pole pins, an invention that enables moving magnet cartridges to have a flat frequency response, as with a moving coil cartridge. Split pole pins were invented by Ortofon, and were originally presented in the 500 series and Super OM series.
We have optimized the design for ease of mounting the cartridge, and the weight and size to fit the most common turntables on the market today. The 2M Series provides excellent compatibility when used in an assortment of playback systems and with a wide variety of phono preamps.

Technical data 2M 78 / 2M 78 Verso

Output voltage at 1000 Hz, 5cm/sec. 4 mV
Channel balance at 1 kHz –
Channel separation at 1 kHz –
Channel separation at 15 kHz –
Frequency range at – 3dB 20-20.000 Hz
Frequency response 20-20.000 Hz + 3 / – 1 dB
Tracking ability at 315Hz at recommended tracking force 70 µm
Compliance, dynamic, lateral 18 µm/mN
Stylus type Spherical
Stylus tip radius R 65 µm
Tracking force range 1,6-2,0g (16-20 mN)
Tracking force, recommended 1,8 g (18 mN)
Tracking angle 20°
Internal impedance, DC resistance 700 Ohm
Internal inductance 300 mH
Recommended load resistance 47 kOhm
Recommended load capacitance 150-300 pF
Cartridge colour, body/stylus Black/Grey
Cartridge weight without screws 7,2 g
Replacement stylus unit 2M 78
Stylus protection guard 2M 78