What is the appeal of the Denon 103 cartridges?

Dear @aberyclark : Please do it a favor and let here the 103 gentlemans lovers and go for that ART-9 that's a very good quality performer.

You can't go wrong with it and I'm sure you never look back with it.

https://www.audio-technica.com/cms/cartridges/0b93b60b61b69617/index.html


Regards and enjoy the MUSIC NOT DISTORTIONS,
R.

Tubehead, The formula in the form you quoted is the same as mine, except you start with the end of my calculation.  It's just algebra.  But 99% of the time, one is going to use the formula starting with a known turns ratio in order to determine the reflected impedance across the transformer.  If you start with a known turns ratio, you square it (obviously), e.g., a 1:10 turns ratio will reflect an impedance which is equal to the resistance across the secondaries divided by 100 (10^2).  So, in that use of the formula, there is no need to take the square root of any number, albeit the square root is available rapidly with any decent calculator.  I agree that we really have no argument here.
Now, can you tell me why the "rule" for loading is 2X for a SUT and 10X for the pure resistive load of a high gain phono stage?  What's also odd to me: I have only ever seen this reasoning used among those who use the Denon DL103 series of cartridges.

Listening to my Denon DL-103S on a newly acquired JVC QL-A7 TT through a Denon AU-320 SUT and it sounds fantastic. Very musical is the best way to describe it. Lots of detail as well.
The DL-103S is described by Denon as a special elliptical but some say it's a micro line cut. Back than "micro line" was trade marked I believe. 
Anyway, it's a keeper.
BillWojo

Currently I'm enjoying my AT VM540ML. Tracks nice and a good general "all arounder"

@aberyclark I have a AT VM750SH and while a good all-rounder, my cheapest Decca (Grey Export) blows it away. You can pick one up for around $700-$800.

What does either of those two cartridges have to do with this discussion?
BillWojo