2xGerman Infineon's new technology class D power amplifier chip, higher quality, efficiency up to 92%, further reducing power consumption; Using NJRC's electronic volume control chip NJW1194 from Japan, precise volume control and low distortion; The balanced design, from input to speaker output, greatly reducing distortion caused by signal transmission; Built-in SMSL SDB patented sound and treble/bass adjustment for easy matching of a variety of speakers and music; Subwoofer pre out for 2.1 system application. All aluminum alloy CNC precision processing shell, anodizing technology and chamfering process, exquisite workmanship and delicate touch. Color LCD display and user-friendly operating system are simple and easy to understand, equipped with full-featured remote control function; Low power standby function to meet the latest European ErP2 standard; A large number of professional Hi-Fi audio components are used to enhance the sound experience; High quality gold-plated input and output terminals; Perfect protection circuit for overheating, overcurrent, etc. Built-in high quality power supply, specially designed for audio !