![Benz Micro Ruby 3 Open Air MC Low Output Cartridge Nude Stylus [2nd hand]](https://www.playstereo.com/19251-thickbox_default/benz-micro-ruby-3-open-air-mc-low-output-cartridge-nude-stylus-2nd-hand-.jpg "Benz Micro Ruby 3 Open Air MC Low Output Cartridge Nude Stylus [2nd hand]")
![Benz Micro Ruby 3 Open Air MC Low Output Cartridge Nude Stylus [2nd hand]](https://www.playstereo.com/19251-small_default/benz-micro-ruby-3-open-air-mc-low-output-cartridge-nude-stylus-2nd-hand-.jpg "Benz Micro Ruby 3 Open Air MC Low Output Cartridge Nude Stylus [2nd hand]")
Benz Micro Ruby 3 Open Air MC Low Output Cartridge Nude Stylus [2nd hand]
Second hand unit, in excellent conditions, 30/40 hours burn in, with original box, 1 year warranty
![Benz Micro Ruby 3 Open Air MC Low Output Cartridge Nude Stylus [2nd hand]](https://www.playstereo.com/19251-medium_default/benz-micro-ruby-3-open-air-mc-low-output-cartridge-nude-stylus-2nd-hand-.jpg)
Benz Micro Ruby 3 Open Air 0,34mV Low Output Moving Coil (MC)
Specifications
Design principle: Low Output Moving Coil (MC) pickup system
Body: Aluminium, open, free-floating
Cantilever: solid boron rod: 0,28mm diameter
Stylus: nude line-contact diamond, mirror polished
Stylus tip radius: 5 x 120 μm
Vertical tracking angle (VTA): 20 - 22 degrees
Coil: Square ruby jewel plate
Weight: 7,4 grams
Output voltage: 0,34mV at 3,54 cm/s
Internal impedance: 40 ohms
Frequency response: 10 - 50.000 Hz +/- 1dB
Channel balance: better than 0,5dB
Channel separation: better than 35dB at 1 kHz
Tracking ability at 315 Hz at a tracking force of 2 grams: > 80 μm
Dynamic compliance: 15 μm/mN
Setup instructions
Recommended loading: 500 - 47.000 ohms
Recommended tracking force: 1,8 - 2,2 grams
Optimum tracking force: 1,8 - 2,0 grams
Recommended tonearm mass: medium to high
Optimum working temperature: 23° C
![Benz Micro Ruby 3 Open Air MC Low Output Cartridge Nude Stylus [2nd hand]](https://www.playstereo.com/19251-home_default/benz-micro-ruby-3-open-air-mc-low-output-cartridge-nude-stylus-2nd-hand-.jpg)
