Cartridge mV questions


Hi everyone,
why do MC cartridges range from ( eg.) .15 mV to 4.0 mV. Is there advantages
of having lower or higher mV's ?? Please explain .........
slates
Lower voltage (ie lower compliance) cartridges will match best to tonearms with more mass to produce a resonance frequency below audible (20 hz or so) which is desirable for smoother response. Higher voltage matches to lower mass tonearms for same purpose.

I think I have this right. If I screwed it up, someone please let me know.
Larry, thanks I totally get that, makes sense.

Mapman, that's interesting, my Clearaudio Unify 9 has an arm mass of 9.
I am not sure what it means, does someone know if 9 is a high or low mass
and what mV cartridge would suit it best????

thanks
Dear Mapman/Slates: The resonance grequency subject is something where the cartridge output level has nothing to do about, the resonance frequency is a measure to try a better tonearm/cartridge match where the tonearm effective mass, cartridge weight and cartridge compliance are taking in count to determine the resonance frequency that ideally has to be at 10 Hz but is very good between 8-12 Hz.

Larry reference: +++++ " Fewer turns mean lower mass in the moving parts " +++++ , is a different " figure " that means that a cartridge with lower mass moving parts it will be a better tracker but almost nothing to see with the tonearm/cartridge resonance frequency.

Regards and enjoy the music.
Raul.
Hi Raul. I am sorry, unfortunately I don't understand what your describing,
is there any way you or someone else can explain in layman's terms? I am looking at buying a cartridge and it would great help, if I understand how to match the cartridge to the arm.
Slates,

Matching cartridge to phono pre-amp and tonearm properly is unfortunately a complex subject. There are multiple parameters to consider in order to truly tune it best.

A better approach might be to specify what table, tonearm and cartridge you use currently. Then someone might be able to suggest options that work well based on similar experience.