The following are the specs for the Madrigal Carnegie One cartridge:
Aluminum alloy body
Micro edge line contact stylus
Beryillium cantilever with carbon fiber core and enclosed in aluminum
Weight 6.7 grams
Tracking force range 1.5 to 1.8 g (1.7g recommended)
Tracking angle 24 deg (+/- 3 deg)
Compliance 17 cu
Medium to high mass tonearm recommended
Load impedance 30 to 50K ohms
Output >0.26mV
Regards, Richard.