AIYIMA A80 Bluetooth Amplifier DAC Stereo HiFi Home Audio Receiver 2.0 Channel Hi-Res Class D Power Amp with PC-USB Coaxial Optical TRS RCA Input

Chipset: TPA3255D2+QCC3040+NJW1194+SA9137L+ESS9038Q2M+OPA1656+NE5532 Replaceable op-amp chips: RT3609SM OPA2604 OPA2134 LM4562 JRC5532 OP275GSZ OPA1612 and so on. PC-USB Sampling Rate: PCM:384Khz/32bit DSD256 PC-USB OS: Windows XP / VIsta7/8/10 / Max OS/MAC/Linux Bluetooth / optical / coaxial sampling rate: 24bit44.1khz / 24bit192khz / 24bit192khz Bluetooth chip: QCC3040 Bluetooth 5.1 Support: AAC SBC aptX aptX-LL APTX-HD Distortion: 0.006%  xlr/rca SNR: ≥ 109dB High/Low Tone: ±10db Frequency Response: 20Hz-20KHz (±0.5dB) RCA input sensitivity: 2Vrms XLR input sensitivity: 3.6Vrms Speaker impedance:4-8Ω Maximum Output Power: 300W*2 (4Ω)  Input Mode: RCA+TRS+PC-usb+OPT+COA+BT Supported devices: decoder bilevel preamp computer CD cell phone MP3 etc. SUB output sensitivity: 2V Trigger voltage: 12V Output Mode: 2.0 passive speaker/active subwoofer