the active high gain circuit are mainly " transparent " transistors where the signal pass. In the direct set up the signal pass only through the tonearm internal wires and the IC cable to the DM10 input but with the SUT ( transformers has " hundreds of wire m. ) the signal must pass to additional IC cables between the Kondo and the DM10.
I think that you perceive a diferent sound that like you more but not necesary " more transparent " because that silver additional IC cable degrade the signal too.
Anyway, as I said it: newcomers audio items always welcomed.
Regards,
R.