A true mono cartridge by Ortofon 
It is equipped with a Nude Elliptical r/R 8/18 µm stylus which is a good solution for playing single microgroove vinyl records. The Quintet Mono will perfectly track even worn and damaged records and provide surface noise control. 
The Quintet Mono uses a coupled output to deliver the same output signal from both sets of pole pins. This effectively eliminates the need for mono-specific equipment, allowing true mono reproduction to be enjoyed on any stereo playback system 

Technical characteristics 

Output voltage (1000 Hz, 5 cm/sec.): 0.3 mV 
Frequency response: 20 - 25,000 Hz (- 3 dB) 
Track tracking at 315 Hz at recommended tracking force: 70 µm Lateral compliance: 15 μm/mN 
Diamond: bare, elliptical Radius: r/R 8/18 μm 
Support force: 2.1 - 2.5 g (21- 25 mN) 
Recommended support force: 2.3 g (23 mN) Reading angle: 20° Internal impedance: 5 ohms 
Recommended load: > 20 ohms 
Cantilever in ABS and aluminum 
Coil cable: silver 
Cell weight: 9g