Torus RM-10 Power Conditioner, Isolation, and Protection Unit
Torus Power makes as wide an array of isolation transformers as I have ever encountered. The 100 amp version (RM-100) would be a great addition for supplying isolated AC to an entire home theater in custom install situations, but a small one like the RM-10 is useful especially for digital sources and projectors, the total power of which does not exceed 10 amperes.