Scheu Analog MC Ruby 3 M Cartridge Based on Benz Micro

MC Scheu Ruby 3 is made at Benz Micro in Switzerland. This pick-up cartridge is based on the Benz Ruby, although the generator is that of the Benz LP.

The pick-up is equipped with a Namiki micro-ridge diamond stylus tip. We are convinced of the advantages of supplying only low-output variants. Therefore the MC Scheu Ruby 3 has an output of about 0.34 mV running at a speed of 3.54 cm/s. Each pick-up is hand-made, individually measured out and audio tested. The original of the testing protocol is supplied along with the system.
Physical

System type:
Moving Coil

Body:
Aluminum-alloy, open, free-floating

Cantilever:
Solid boron rod: 0.28 mm diameter

Stylus:
Nude line-contact diamond, mirror polished

Stylus tip radius:
3 x 60 μm

Vertical tracking angle:
20 degrees

Coil:
Square ruby jewel plate

Weight:
8.3 gr

Electrical

Output voltage:
ca. 0.34 mV at 3.54 cm/s

Internal impedance:
ca. 38 ohms

Frequency response:
10Hz – 50kHz +/- 1 dB

Channel balance:
< 0.5dB Channel separation:
> 35 dB @ 1 kHz

Dynamic

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 gr

Optimum tracking force:
1.8 – 2.0 gr

Recommended tonearm mass:
Medium to high

Optimum working temperature:
23° C

Break-in period:
40 hours