moving coil mc cartridge handmade for turntable tonearm

This is a moving coil cartridge with a ceramic stylus and a conical diamond tip.
The coils are hand-wound and manually assembled and adjusted.
The sound performance is delicate, with a balanced frequency response across all three ranges.

Cartridge type: Stereo moving coil cartridge
Needle point shape: conical Diamond stylus
Needle rod material: ceramics
Shell material: aluminium alloy
Cartridge weight: 7.5g
Coil type: 5N OCC single crystal copper
Output voltage: 0.4mv 
Phono impedance: 16Ω
Load impedance:>=60Ω
Frequency response: 20-25KHz±2dB
Channel separation >28dB
Left and right channel balance <0.5dB
Recommended injection pressure: 1.8g
acupuncture pressure range: 1.5-2.2g
Shield compliance: 15um/mN
Break-in time: 20 hours