I may be in the market fora new UPS for a Hopper with Sling. My areas has frequent blackouts usually short but sometimes for longer periods. MY experience with Belkin, CyberPower and APC is that they all come equipped with an audible alarm There is usually a software method of disabling the alarms but I find that if the unit is discharged it loses the setting. In some cases even a low power state makes the unit sound the alarm in spite of the setting. I have asked this before in other forums and I am usually told either that the behavior I described does not exist or that all I need to do is "Snip the wire to the speaker" but in most cases the alarm comes from a diode on the board not a speaker. Is anyone familiar with a good UPS that has no alarm. has hardware switch, or has software that is somewhat more dependable?