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
Dear @wynpalmer4 and friends: Other that your very clear higligths I posted other gentleman posted in this thread:

"  If your set up sounds "wrong" with more modest loading, such as 100 ohms, something might be wrong elsewhere..."""

I don't know why all those " huge " inistence on the capacitance LOMC subject maybe because one of them is a seller .

Now, you are a gentleman that already use around " 100 ohms as loading the LOMC cartridge and in the Madake 60 ohms with great results.

I experienced always in the same way however a " live " evaluation tests are in order and as always I just did it because it's the best way to learn something new or confirm our believes.

I have my own fully proccess to make audio items evaluations in my system through listening sessions.  My tests evaluation was changing only one parameter that's the cartridge load impedance going from my usual 100 ohms to 47kohms and 100kohms. Fortunatelly I have that proved proccess ( tested in my system and many other diffrenet systems. ) and a truly high resolution and precise system. Well this is what I found out against 100 ohms:

I found out no more transparency or openess in the system presentation in those HF range but what I heard is lower " definition " of the fundamental and developed harmonics even in some of the tracks of that test proccess part of the detalied HF with 100 ohms not only was veiled but just disappeared. The transient and decay time changed in a way that makes everything more " ethereal " than with live music definition.
The overall presentation at 47/100k has a penalty not only in the HF range but even at the lower ranges maybe because the " contrast " in between goes smaller but I can't be sure why.

Taking those Wyn highlighs and  the larryi ( now I remember whom posted the highligth at the begin of this post. ) I agree with both of you and what larryi said is true " something wrong " in the system.

Seems to me that some of you that prefer 47K with out intention to do it what in reality are doing is " compensating " some " faults "  somewhere in the audio system links of that complex system chain and could be problems in more than one of those system links.

My take is that before we make changes on LOMC cartridge loading and especially from 100 ohms to 47K we have to be totally sure that at every single system link we have no " problems " but if you are unaware of that then you have to make a proved testing evaluation using a proccess that permit a " true " evaluation. Obviously that we can't be absolutely sure of the proccess validity but we have to be nearer to that " true ".

Is more frecuent/often that we make changes where we don't need to do it but anyway we did it and think that were for the better when in reallity are only hidden system " errors " somewhere.

Of course that for those evaluations we have to be honest with our self and not biased on purpose or because we are accustom to this or that characteristic in the sounds and obviously that we have to be sure that we know how sounds each instrument in a near field live event.

Btw, I made my tests as always: at normal seating position and at near field position. As a part of my proccess tests headphones are inside but normally I don't use it because I'm truly engaged with the system but this time I used and confirms what I said. I always prefer the near field test than the headphones because I'm not accustom to.
Btw, I tested through too using an additional full stage with my AU-1000 SUT with similar results that in the active high gain phonolinepreamp.

Now, sounds bad at 47K? no it did not but when you are accustom to the top quality level I'm the you can listen the difference at once not 3 hours latter, it's immediatly.


Regards and enjoy the MUSIC NOT DISTORTIONS,
R.


To me I have always viewed with LOMC "100 ohms gets you a nice sound and 47K ohms gets you a very open nice sound". Then everything in between, but all this has many depending factors that are outlined in several posts @wynpalmer4 as its so true that most of the differences in sound we hear is due to the differences in phono stage design, topology. I think most if not all distortion we hear from increasing value of phono stage input R load is intermodulation created by the phono stage, not the cartridge. I think this varies also due to the circumstances, how sensitive the phono stage is to RF energy and such and don't forget about how the whole cable/wire chain affects too (cartridge wiring, tonearm wiring and phono cable to amp) maybe HF sensitivity of the phono stage.

I think it is clear, that all phono stages react differently based on topology and what the designer did, just too many variables to have the "correct setting", I think you just want a phono stage that will be stable within a given range and maybe the designer can advise if there is such a range they were thinking of.

I hate when a reviewer does not advise what settings they are using when reviewing a phono stage, because this could dictate the sound character they are hearing and whether they give a favorable review or not....I actually believe most are not listening to a phono stage that has been properly setup. Not all LOMC carts sound best at 100 ohms......Variety is the spice of life!!

Cheers
While rules of thumb often get hit with a hammer, I’ll offer two that work for me:

1. Start loading at 25 x DCR (or internal resistance, 5 ohms for the Bronze), then raise or lower (usually lower) to taste.
2. Always listen to almarg.
Best,Bill
Dear @catcher10: "  Not all LOMC carts sound best at 100 ohms......", as you said depends on phono stage but as a fact depends on the whole system/room.

Normally at 100 ohms has to sound good. Now if we want the penultimate loading for a specific cartridge this is almost imposible. 

During my tests I tested 3 cartridges and all performs in the way I posted with 47k.
As a fact and at least in my system I'm not bother any more for that " wrong " 47K loading with LOMC ones. But that's me.

R.
@rauliruegas 
Well, if you have done all the listening tests and have settled at 47K ohms within your system then carry on. At the end of the day its about what your ears tell you and quite possibly your room.

What I think most of us are saying is, depending on your phono stage will depend on what you settle on if you have adjust-ability, don't settle with 100 ohms just because it is close to 10x the internal, which is what you read over and over.

Figure out your cable capacitance and then get with your cart mfg and find out how they built the cart and what suggestions they have on loading. Start there.......then adjust till your ears are satisfied. My route was to use the mathematical process based on how Lyra designed the Delos. Sure I played with loading quite a lot, but the math version clearly gave me the highest level of resolution and dynamics.

Cheers,