Originally Posted by Justin Thyme
It is the ultimate in power line conditioning since it completely regenerates the AC.
Too bad they don't regenerate a true
sine wave. If you zoom into the waveform with a oscilloscope, you'll see that it's jagged and not smooth. Some equipment does NOT like that. Instead of having a smooth transition in the flow of electrons, it's actually more of a "driving over corrugated metal at high speed" approach.
Probably wouldn't affect anything that we would have in our home, but you never know with audio.
We spent weeks tracking down just such an issue for the audio department in a theatre where I worked. It was a Liebert UPS with five banks of about eighty deep cycle batteries per cabinet. I think the breakers on each one were rated at 300A. (It's been awhile, though.) Boy, when the actuators threw those breakers, you knew it!
If a quarter million dollar UPS can't generate a true sine wave, I doubt a $140 unit can do it.
As always, YMMV.