i don't think i would. i lecture everyone else about this, but i took one or my BIG APC smart ups's and hooked up one of my rolands to it, thinking i would protect it
i could hear the power supply SQUEAL, like it was being tortured. when the line power went out
that is why i try to steer everyone to a good commercial surge protector. the most frightening thing is when you put an oscilloscope on the ac output, and watch the transition when power goes off and you switch to the ups backup power.
so, short answer is, i wouldn't, unless you spend the money on an online double conversion system (the sort of thing a hospital uses)
with this system, it converts line voltage to dc, then runs an inverter constantly, so there is no changeover when the power goes out (simplifying a
complex topic for brevity)