OSD XMP100 amplifier makes a great choice for powering speakers in your home, studio or desktop sound system. This versatile amp's 24/192 USB Audio, and dual line-level inputs let you enjoy sound from one main music source plus an additional interrupting audio source, switching automatically between them. Select your TV, Digital Audio device or portable music player as the primary source. Turn on the source and the XMP100 senses the signal, turns itself on, and sends the music to your speakers. Then, if you connect another music source like our SRT1 Gen2 music streamer to the secondary Interrupt input the amp will switch to that source whenever it senses an incoming music signal. When that source stops playing, the XMP100 will automatically switch back to the previous source. There's no need to manually switch inputs. The 24/192 Digital Stereo Power Amplifier OSD Audio XMP100 is designed for dedicated stereo & distributed audio applications. It offers many features including A & B speaker outputs. USB Type A 24/194 HD Audio, RCA Line In, and Interrupt Line In inputs. It can also be configured for Stereo or Bridged output, delivering up to 200 watts. Features 2 x 100 Watts RMS 4 Ohms, for high power sound 1 x 200 Watts Bridged for maximum power Class D design for maximum efficiency and low cost running Greater than 90 dB SNR for low noise and clear sound 4 separate inputs including an automatic switching source provides a lot of flexibility Volume, Balance, Bass and Treble controls allows you to ‘dial-in’ exactly the sound you want Two pairs of speakers can be connected and switched on and off (8 Ohms), great for additional speakers outdoors or in another room. Trigger or Auto sensing on and off, once set up, you can hide your amp away and just enjoy the sound.