The 'tube-transistor' enigma by MC carts?

@nandric — A poem? From a mutli-leveled literary stylist like you, that’s high praise!
@analogluvr — One brief vignette how cool that meet was. I approached a table laden with goodies. I saw a clear plastic bag stuffed with, bursting with, cartridge-mounting nuts, bolts, washers, gold cartridge clips, 1000s of them, for $3. My hand was an inch away from it when my eye caught something less than a foot away — still-sealed new Shure V15 IV-MR for $40. "You're Next!" I thought as I turned back to the $3 bag – but someone was buying it. Too late! I reached for the Shure and someone was buying it too. Damn! "But I saw it first!" didn’t work there, I didn’t bother trying. Two great things lost in half a second. Never again! I moved to the next table ready to pounce...

Chakster, To create a "resistor" using copper wire is folly, don't you think?  Even fine copper wire has very low resistance per foot, because it is.... a great conductor.  You'd need miles of good copper wire to create a 47K ohm resistance, for example.  I suspect there is some other kind of wire used in there, like nichrome, which is popular for resistors because it is a bad conductor.  As to the lack of inductance, there are very fine non-inductive wirewound resistors, made by Mills and probably others. But even those are not totally without inductance; the wire is wound so as to minimize inductance, but I think there will always be a tiny amount of inductance in any wirewound resistor.
I looked it up for fun:  1000 feet of 30 gauge solid core copper wire has a resistance of about 100 ohms.  So you'd need ~470,000 feet of it to create a 47K ohm resistor.  I don't think that would fit into the ZYX chassis.

@lewm you are welcome to argue with ZYX, but first look the my picture of this device and its input resistors which looks like a coil, i hope you know how thin is a coil wire of ZYX MC cartridge? The technical advantages stated in the manual and this is when i got my information from.

It’s 0.035mm/Cryo (6N Crystallized Copper Wire).

They call it "ideal coil wire made for the first time in the world. it has been developed for ZYX by both a wire manufacturer and a processing company of cryogenic treatment in 2002. The wire consists of pure crystals of copper, and that are systematically aligned."

CPP-1 Technical Data:
Input Impedance: 125 ohm
Step up ratio: 26dB
Signal-to-Noise ratio: more than 95dB
THD: lower than 0.1% (1kHz)
Frequency Response: 1Hz - 1MkHz (+/- 1dB: 2Hz - 500kHz)
Channel Balance: lower than 0.01dB (1kHz)
Channel Separation: more than 100dB  (1kHz)
Battery: 9 pcs of KR-1100AAu (1.2V 1100mAh)
Power: 0.8W

@chakster Just so you know, 6Nines copper wire does not exist. The best anyone has done is 5Nines and that claim seems highly suspect! Another way to look at this is the wire might be extruded from 6Nines copper, but once extruded it won't be 6N anymore. Copper, when unoxidized, has a silvery appearance. When it has a copper color its been slightly oxidized.

The devices at the input of your preamp appear to be coils, not resistors. They are there to suppress RFI at the input; they are in series with the input signal, not in parallel. You can see this if you follow the traces on the board, which are pretty visible in the photo.
A better photo of them would reveal more information, but at the present moment that's how it looks. The low input impedance suggests that a coil could be wound to be a resistor, but one would have to be careful to control inductance, as a high inductance in parallel with the input would be disastrous! It would cause the normal resonance at the input to be lowered in frequency, and perhaps pretty dramatically. We uses non-inductive devices for precisely this reason.

@atmasphere

Just so you know, 6Nines copper wire does not exist. The best anyone has done is 5Nines and that claim seems highly suspect!

There you go:

6N Copper:
https://www.americanelements.com/6n-999999-copper-metal-7440-50-8

ZYX Coil Wire type is 6N OFC Crystal Copper φ 0.035mm :
http://www.zyx-audio.com/products_mc_ultimate_series_dynamic.html

ZYX CPP-1:
http://www.zyx-audio.com/products_phonoamps_cpp1.html

It would cause the normal resonance at the input to be lowered in frequency, and perhaps pretty dramatically. We uses non-inductive devices for precisely this reason.

From my manual of ZYX CPP-1: "The resistors is made by winding the wire to a coil that has no inductance in a special process. Then our resistor can transfer the output signals with no noise and NO INDUCTANCE at all. "

The best anyone has done is 5Nines and that claim seems highly suspect!

Ortofon made 8N copper wire for the coil of SPU Spirit Limited Edition model (only 500 made), you can download manual to make sure (i’ve owned this cartridge): https://www.vinylengine.com/library/ortofon/spu-spirit.shtml