C30 is a comprehensive professional digital audio decoding and audio processing effects karaoke OK effects, built-in movie mode and Kara OK mode, with multiple versions HDMI1.4 input, optical / coaxial input, stereo input. 7.1CH XLR analog outputs. Multi-function IR remote control and USB computer software debugging. Products for home entertainment, clubs, recreation room units, professional KTV, cinemas. One: Functions and Features: 1: Built-movie system and professional karaoke OK systems. 2: Built-in HDMI 1.4 version four input, one output HDMI 1.4 version. Support 3D, ARC, CEC function. 3: Built-in two-way optical fiber, two-way coaxial inputs, two analog stereo inputs. 4: 7.1CH analog outputs, eight balanced XLR outputs. 5: Built-in two-way MIC input, each channel can independently adjust the input level. 6: Built for each channel music and vocals have eight of PEQ adjust each system under control and low-pass filtering. 7: Built-in vocal effects processing ECHO, RE etc. 8: can decode HDMI, optical, coaxial audio input formats: LPCM, PCM, AC3, DTS. Support HDMI deep color and XVYCC. 9: Anti-static design. 10: Multi-function infrared remote control and USB computer operating software debugging. www.dibao8888.us www.dibao8888.co