Ortofon 2M Blue Cartridge tested with Ortofon Test Record and Oscilloscope
- Link: Ortofon Test Record
- Stylus force: 1,85 gr.
- Anti skating: anti skating force (same as stylus force) adjusted with force scale of control knob.
- Later modified and best setting is 0,6 x stylus foce in reference to the tracking ability 100um
- Link: VTA IEC Protractor
- Azimuth and tone arm adjustment with set square
- Player: Sonoro Platinum
- Oscilloscope: Rigol, 100MHz, 4 Channels
- Signal input from player build in pre amplifier and direct from cartridge
#1
Crosstalk test between left and right channels, signal from preamp:
Below, #3, you will find the values for the channel separation calculation
#2
Tracking ability, signal from preamp:
Square wave, 2,7msec, duty: 3:7, signal from preamp:
#3
Crosstalk test between left and right channels, signal direct from cartridge:
The channel separation is according the 2M Blue specification.
Channel Separation= 20xLog (Vpp 14.4mV/Vpp 0.8mV)--> 25.1dB
Tracking abillity, signal direct from catridge:
Square wave, 2,5 msec, duty 3:7, signal direct from cartridge:
Screen shot, (signal direct cartridge and from preamp, RIAA) from "jjones3" of forum vinylengine.com:
Tracking abillity, signal direct from catridge:
Square wave, 2,5 msec, duty 3:7, signal direct from cartridge:
Screen shot, (signal direct cartridge and from preamp, RIAA) from "jjones3" of forum vinylengine.com: