BTW, I found this on the Miyajima Labs website:

Numerical value of InputCoil and OutputCoil is winding amount of the coils.
Please choose the winding amount of InputCoil suitable for the impedance of the cartridge.

Input Coil
80 = 2-5 Ω
120 = 5-12 Ω
180 = 12-30 Ω
270 = 30-100 Ω

Numerical value of the output coil is winding amount of the coils.
Please choose the appropriate numerical value to decide an amplification rate.
For example, it is the amplification of 22.2 times when a user chooses Input180 Output4000 for a cartridge of 16 Ω.
The output impedance switch changes the impedance of the phonostage.
The calculation methods of Impedance are as follows.

22.2 times x 22.2 times x cartridge 16 Ω = 7,885 Ω = 7.885 kΩ

Therefore, please choose the impedance from 8k ohm to 47k ohm.

In the case of MM cartridge, please choose PASS as both InputCoil and OutputCoil.
In addition, please choose 47kΩ(PASS) as Impedance basically.

There's some worrying stuff there, but I haven't got time to go into it all now. I'll come back to it.