2 x 15 Watt amplified speaker output 1 x Stereo balanced line input (Terminal Block) 1 x Balanced microphone in (Terminal Block) Remote wall-to-wall connection (RJ45) Remote audio controller connection (RJ45) Output limiter Variable power efficiency level V, Energy Star v3.0 certified Automatic standby mode Standby power consumption: 0.8 Watt (including PSD241) Rated power consumption: 4.9 Watts (including PSD241) Compatible with 100V transformers