Huge Power: The RXB113 is loaded with 1,500 watts of power! The built in amplifier is as loud as the Tech Pro 1,500 watt stand-alone DJ amplifiers.5.1 Channels: Most regular amplifiers only have 2 channels. This amp will allow you to hook up 5 speakers, and get surround sound! You can add a subwoofer to the sub pre-amp output. You can either add an active sub or add an amplifier and passive sub(s).More than just an amp: This is more than an amplifier. The RXB113 will be the control center for your home, karaoke, or professional audio system. You can hook up (3) additional audio sources through the RCA inputs. You can also connect a microphone directly to the receiver and control the echo.Great For Karaoke: There is a built in mic mixer with echo control, which makes this perfect for karaoke performances.Full Function Remote: The remote control that is included will allow you to access all functions of the receiver quickly and efficiently.