Mooncrikit, I live in a neighborhood where at least twice a month the power blinks off/on. It plays havoc with all our digital devices. This is a particular problem since I use a Mac computer as the sole digital source component in the stereo system and I'm particularly concerned about the repeated shut downs leading to hard disk failures. My solution is to use an APC UPS only on the computer and the firewire hard drives. The DAC and amps are all plugged in to PS Audio Powerplants. The Powerplants don't prevent the equipment from shutting down, but they do seem to prevent the power surges from getting to the hifi equipment and they also prevent the equipment from turning back on when the power comes back up. I haven't noticed any decrease in sound quality since I installed the UPS. A used 300 series Powerplant go for around $600-700; the UPS cost less than $100.
using a back-up ups for front end of system
anybody out there ever tried using an APC computer batteryback-up ups for their digital components and preamp and if so with what results?