Of course, yes. And I am no electronics genius. The impedance seen by the cartridge will be equal to the input impedance of the phono stage divided by the square of the voltage step-up ratio afforded by the SUT. In other words, if the phono stage has the typical MM standard 47K ohms input resistance, and if you use a 1:10 SUT, the cartridge will see 47K/100 or 470 ohms. If you change that 47K resistor to some other value, that would make a corresponding change to the load on the cartridge.
Any electronic geniuses here?
When looking at a setup like this, LOMC to a step up transformer (SUT) to a MM phono stage, would changing the impedance of the MM input alter what the LOMC 'sees' at the input to the SUT? This is a purely technical question so please, no opinion pieces on the arrangement. Thanks