Yamaha rxv383blb av receiver has a discrete 51 channel amplifier design with built in bluetooth for wireless music playback stunning hdcp 22 4k ultra hd video hdr bt2020 compatibility and automatic ypao calibration for maximum performance bluetooth equipped rx v383 offers wireless music playback from smartphones and other devices compressed music enhancer is optimised for bluetooth audio to ensure vivid and lively sound quality during wireless playback designed with a strong focus on