Phono setting - Transrotor Leonardo 40/60 TMD

[docvale]

your Ortofon is reported to output at 0.5mV (which is what you would report on the expert configurator) and likes an impedance of >20ohm (which is super low) and you might start playing at 100ohm and take it from there. Alternatively, you might want to consider a SUT, such as the Ortofon ST-7 (developed for Quintet cartridges), which would likely require to set the output seen by the Dev phono to around 7mV (so, MM territory) and to load it at 47kohm.