Just to further Almarg's & Jea48's point re. ensuring that you buy a UPS with a true sinewave output - I understand that some friends bought an UPS that did not (i.e. output a sq. wave) & they were not aware of this & it fried the electronics over a short period of a few months.
So, be very careful of the output waveform. Most of the time UPSs are targeted to PCs that use switching power supplies hence it does not matter but to audio electronics sq. waves are bad news. APC has come out w/ an audio version UPS but I believe that it's not cheap.
Your best bet would be to buy a PS Audio unit OR a (Canadian) PurePower unit. The PurePower has a battery backup while I believe that The PS Audio units do not.
So, be very careful of the output waveform. Most of the time UPSs are targeted to PCs that use switching power supplies hence it does not matter but to audio electronics sq. waves are bad news. APC has come out w/ an audio version UPS but I believe that it's not cheap.
Your best bet would be to buy a PS Audio unit OR a (Canadian) PurePower unit. The PurePower has a battery backup while I believe that The PS Audio units do not.