Product description SMSL RAW-HA1 Power Amplifier Specification Input HDMI (ARC) /RCA/BT/USB/Optical/Coaxial THD+N 0.003 % SNR 108dB Channel separation 87dB Input Sensitivity 245mV Input lmpedance 22k Output Power stereophonic 4: 165 Wx 28: 85 Wx2 USB transmission USB 2.0 (Asynchronous Transfer) USB compatibility Windows7/8/ 8.1 /10/11, Mac OSX, Linux MQA decoder USB/Optical/Coaxial MQA-CD decoder Optical/Coaxial Bit Depth USB 1bit, 16~32bit Bit Depth Optical/Coaxial 1bit, 16~24bit Sampling rate USB PCM 44.1 ~768kHzDSD 2.8224 ~ 11.2896MHZ Sampling rate Optical/Coaxial PCM 44.1 ~192kHzDSD DSD64 (DoP) Bluetooth specifcation 5.1 (support SBC, AAC, aptX, aptX HD, LDAC)