Pani, I have two active phono stages with over 76db gain(Pass XP-25 and modified hybrid Atma MP-1) that are excellent matches to ART7 without a SUT.
In fact both phono stages work well with a .05mV Ortofon MC2000, albeit with a bit of tube rush from the Atma LS at high volume.
The ART7 has similar qualities as ascribed to the ART9 and no short-fall of dynamics. It also took 100+ hours to reveal its best. FWIW, in a race between LOMC cartridges with non-permeable coil formers(e.g. ART7, DL-S1, MC2000) I do favor the old MC2000, notwithstanding background noise that becomes imperceptible the moment the needle drops.