Stromtank ultimate independent power source in action

Stromtank S5000 from Germany in action. This is the ultimate take on the independent power source. 16 micro processor controlled rechargeable batteries feed an audio system that is completely disconnected from AC power. Connected to the Dan D’Agostino Master Audio Systems, DCS gear, Momentum Phonostage, Momentum Preamplifer, Momentum M400 mono amplifiers, and the Wilson Audio Alexx loudspeakers at the The Audio Salon event.