2 x 20-Watt powered near field monitors, 24-bit/192 kHz D/A converters, which let you connect digital sources directly in order to eliminate analog line-loss and hum. Connect your computer sound card, keyboard, MP3 or Mini Disc players. Optical and coaxial inputs to directly connect digital audio sources by S/PDIF interface. Two stereo analog inputs featuring 1/8" TRS and stereo RCA connectors can be used simultaneously or mixed with a digital stereo source. The speakers also feature individual volume controls for both Line inputs plus Bass and Treble EQ controls, and there is a -" TRS headphone connector with a front-panel auto-mute loudspeaker function.