creo que estoy entre la 500.V3 o la 400.V3 ...
os dejo la pagina de stanton:
http://www.stantondj.com/stanton-cartridges/500v3.htmlhttp://www.stantondj.com/stanton-cartridges/400v3.htmllas especificaciones tecnicas de cada una:
500.v3:
    Spherical Stylus
    Stylus Type: Spherical .7 mil
    Special High Polish
    Frequency Response: 20 to 17 kHz
    Nominal Output @ 1kHz: 4.6mV
    Channel Separation @ 1 kHz: 28dB
    Channel Balance @ 1 kHz: within 2dB
    Tracking Force: 2 to 5 grams
    DC Resistance: 535 ohms nom.
    Inductance: 400 mH
    Cartridge Weight: 5.5 g
    Tracking Ability: 80µ @ 3 grams
    Recommended Load: 47k ohms and 275 pF
    Replacement Stylus: N 500
400.V3:
    Spherical Stylus
    Stylus Type: Spherical .7 mil
    Special High Polish
    Frequency Response: 20 to 15 kHz
    Nominal Output @ 1kHz: 10.0mV
    Channel Separation @ 1 kHz: 20dB
    Channel Balance @ 1 kHz: within 2dB
    Tracking Force:3 to 7 grams
    DC Resistance: 535 ohms nom.
    Inductance: 400 mH
    Cartridge Weight: 5.5 g
    Tracking Ability: 80µ @ 3 grams
    Recommended Load: 47k ohms and 275 pF
    Replacement Stylus: N 400
se ven diferencias pero no tengo ni idea de qual será la mejor  

graciassss !!!!