Cartridge Impedance

Hey guys, as the original poster I just want to say, "calm down"! In my original post, I made the error of saying I wanted to change the impedance of the cartridge. I meant I wanted to change the impedance setting on my phono stage, knowing that the response of the cartridge would change. Some of you understood that. And yes, I just want to know how to set up my system. I don’t give a rat’s tush about all the other stuff! It was a simple question and the first 3 responses told me exactly what I needed to know.
I’m not a regular poster here, but I do read a lot of things with interest. But one of the things I’ve found is that when someone asks a pretty straightforward question, the discussion quickly degenerates into a lot of things that are irrelevant. I’ve seen someone ask, "Am thinking of buying only either cartridge X or Y. Any recommendations?" Then someone will say, "I’ve not owned either, but you should try cartridge Z." I mean, WTF! All he wanted was a straight answer. Ok, end of rant and thanks to those of you who answered my question directly and maybe threw in some USEFUL information.
Yes, testing is the name of the OP game!

You've got three electrical parameters going on here to consider: Impedance (which depends on frequency), capacitance (from the phono cable to the preamp), and inductance from the MC coils. 

The combination effectively forms a broad band-pass filter. 

You indicate you can adjust the impedance that's basically like a slider on an graphic equalizer with a very wide band.

You can probably just tweak it so that it sounds "good".

To be more precise you would need a calibration record and adjust the impedance setting until you get a more-or-less flat frequency response sweep but that requires more equipment and time and effort that you're likely to want to do. 

Keep in mind that your phono preamp stage also applies RIAA equalization.

Dear @lewm  @terry9   :   """  Impedance (which depends on frequency), capacitance (from the phono cable to the preamp), and inductance from the MC coils.  The combination effectively forms a broad band-pass filter. """

that's was posted anthonymaw and this is what I posted on the regards:

"""  What normally happens is that in some phono stages when load impedance is changed exist/developed an electrical circuit between the phono stage: inductance, impedance and cartridge inductance and even capacitance and whom react to load impedance in reality is not the LOMC but the phono stage performance. ""

that's " a broad band-pass filter ".


R.




   

Just to be more pedantic so as to possibly annoy the OP, "impedance" is DUE to the inductance and capacitance coupled with the resistances.  If there were no reactive components, i.e., capacitance and inductance, then one would only have to deal with "resistance" which is by definition a constant at all frequencies (although in real life, resistors, some types more than other types, have minor properties of capacitance and inductance, at extreme frequencies).