Stereophile review available online. Measurement section says:
The Temptation goes very loud with only a small input signal—I estimated its voltage sensitivity as a high 91dB(B)/2.83V/m. However, its impedance (fig.1) is moderately difficult, with a minimum value of 3.1 ohms at 120Hz and a demanding combination of 4 ohms and a 42 degrees capacitive phase angle at 80Hz.
but reviewer used only high power SS amplifiers. Hard to say for sure, but I'd say it's borderline.