Do you suppose a freewheel diode would be needed across the terminals? I presume that these amps are producing a nice clean sine wave...
Also, I would expect that audio amps of high power (typically for subwoofers) would offer excellent efficiency around 60Hz, where the motor would want it most.
I have a fairly small amp (300Wrms)... i wonder where i could score a free single-phase AC motor to see if i could make it spin with a sin wave generator and the amp... or my computer's sound card
