Tripp Lite's SmartOnLine SU2200XL is a double conversion UPS that has a large capacity with 2200 VA / 1600 watts. It continuously converts incoming AC to DC, then back to perfect sine wave AC output at 120V AC (+/-2%). Some have used this product in home theaters with good results. I think Dave (dllewel) in this forum has this one.
This is correct, and it works well. It protects the main gear, and is supplying the outlets in the room for the projector and subs too. And yes, I agree that it is probably overkill- but it was a fun project.
