Best UPS Systems Devices for Sound

the fan bothered me into thinking about how much power is being wasted, how much more noise will it make in a year ?i checked the a.c current the unit draws with no load, battery fully charged, .20

my pc is ten times noiser than this ups fan so no problem for me.

i had "electrical noise" in my house that shut down the power for 5 seconds, and this thing kicked in and allowed me to finish my work without fear of not being able to save.

the program says it is due to "background noise" and we have the detection level set as low as possible.

the jennair made a scraping noise so i replaced it.

cons: makes a loud buzzing noise when it runs off battery power but i have more to worry about if the power goes off.

having invested $2500 in a tv/receiver, i felt a good ups that would also condition the incoming power and remove noise was a no-brainer.

the software allows for tweaking a wide range of settings and even keeps a log of when the battery was used and why (overvoltage, undervoltage, blackout, and electrical noise.

the lights never dim or flicker if i stop using the unit.this might be unavoidable, but the computer power supply and speakers emit an ominous buzzing noise when the apc is running on battery.