Features: PCM5102 decoding chip,Builtin four digital amplifier chip, outputpower 50Wx4+100Wx2 ; R2S15902 digital chip, compared with the traditional analogs potentiometer, the chip is superior in performances and functionality It can not only control multiple inputs, but also adjust the frequency of the left and right channel. It supports 3AUX and 1x5.1CH six-track independent inputs, which can be easily to decoders and player. It can also be used when upgrading a new player without having to pay for additional amplifiers Use import inductors for better performances, more delicate and soft sound without stiffness Specifications: Model:PA510 Material. Aluminum Size:about 23.8x13.2x5.2cm/9.37x5.2x2.05in Chip：4x Digital Amplifier Chip Output power： 50Wx4+100Wx2 VolumeControls Chip： R2S15902 Digital VolumeControls Chip Supports 3AUX and 1x 5.1CH six-track independent inputs Standard Types：4Optional Package Includes: 1Set PA510 Digital 5.1CH Power Amplifier Kit note: Due to the problemsof lighting effect and shooting, there mightbe certain tolerances in product, please understand. Please allow 0-1cm error due to the measurment.