PSA-2500X Wi-Fi Network Streaming Audio Hi-Z Amplifier is designed to offer a simple-to-install to add high quality streaming audio anywhere for the residential or commercial application. It features 4 different selectable input sources from the AUX Balance / RCA Line IN / USB Audio / WIFI Streaming Audio with the professional grade Class D 2-channel 70/100V amplification that delivers up to 500 Watts per channel to provide the powerful output signal for large, medium, or small audio systems such as restaurants, meeting halls, sports venues, and other spaces where multiple speakers are needed.