The Panamax M5100 EX Home Theatre System Power Management System is a high-quality power conditioner designed for use in indoor environments. It features an indicator light for easy monitoring and has 10 or more outlets for powering multiple devices. With an input voltage of 120V and output voltage of 120V, this unit is compatible with a variety of equipment in the home entertainment system. The sleek black design and United States plug type make it a stylish and practical addition to any home setup.  

Plugged the system in and everything lights up.  Was working at the time this was removed from system but have't tested it.