Cartridge Loading- Low output M/C


I have a Plinius Koru- Here are ADJUSTABLE LOADS-
47k ohms, 22k ohms, 1k ohms, 470 ohms, 220 ohms, 100 ohms, 47 ohms, 22 ohms

I'm about to buy an Ortofon Cadenza Bronze that recommends loading at 50-200 ohms

Will 47 ohms work? Or should I start out at 100 ohms?

I'm obviously not well versed in this...and would love all the help I can get.

Also is there any advantage to buying a phono cartridge that loads exactly where the manufacturer recommends?

Any and all help would be greatly appreciated.

Thanks in advance.
krelldog
Well, IC designers would generally consider an amplifier circuit that has a section with a 35dB resonance to be pathological- that is, basically a problem waiting to happen- unless, of course, the goal really is to produce an oscillator, or at least a marginally stable system. All it takes is a small amount of unwanted feedback due to parasitics - resistance in the ground, inductive coupling or capacitive- anything could do it- from a point where there’s enough gain and phase shift back to the resonance and all sorts of nasty things can happen. So, even though we can model all of these effects to a degree that the non-practitioner would consider to be near magical (yes, we can do EM simulations for complete circuits that are much more complex than an opamp, and capacitive/parasitic resistance runs are entirely routine) we generally choose, just for good practice, to eliminate any such effects as a matter of priority. Just try getting something like that through a design review.
Seemingly, the practice in audio design is somewhat different.
In this thread phono cable capacitance has been mentioned as a factor to consider when determining the the MC cartridge loading. 
This is from the Morrow Audio website:

"Magnetic cartridges are the only cartridges that might be affected by cable capacitance. With moving coil cartridges, cable capacitance is not a concern."

Is the above a true statement?

I am using their PH4 phono cable, the capacitance is 392pf per meter. 
Turntable is a SL-1200G > Hana SL > PS Audio GCPH with Underwood Mods.     
"Magnetic cartridges are the only cartridges that might be affected by cable capacitance. With moving coil cartridges, cable capacitance is not a concern."

Is the above a true statement?
No. It is advantageous to keep the resonant frequency as high as possible.

Dear @catcher10 @2channel8: That Phonomena phono stage seems to me that is something special and especially that so low price. I never heard of it before but maybe is time to evaluate it. The owners and reviewers speaks excellent " things " about the item.

This is a highligth from an owner in reference to his cartridge loading:

"""  Ortofon Cadenza Blue (MC). I am using a Pro-Ject Audio 2Xperience SB turntable and Ortofon 6NX interconnects. The Phonomena also allows me plenty of flexibility in choosing gain and impedance loading. With the Cadenza Blue I am using a gain of 56 dB and an impedance of 59 ohms (I like the tight, defined bottom end). """

The Nova is even better, at least is what I read it. Very useful information for take care about.


R.
To get started with LOMCs I first bought a Schiit Mani, then upgraded to an Emotiva XPS-1 and now the Phonomena, so that is the extent of my experience with MC phono stages. I will say that in my opinion the MM section of my Nakamichi Receiver 2 beats them all with a Shure V15 RS.
An update on cable/phono stage capacitance: Musical Surroundings has a similar statement that MCs are not sensitive to capacitance in their owner's manual. To be sure, I have the dip switch set to the lowest setting. I've sent an inquiry to Cardas, so we'll se what they say, if anything. With a previous tonearm I used WireWorld Luna 7s. When I asked WW about the capacitance of the cable they said that they don't focus on capacitance; but engineer for the lowest inductance. I'm not sure if one can have a low inductance without a low capacitance. I'm just relating the story. The cables sound good.