Smsl A300 BTL Speaker Amplifier Input:RCA,BT,USBTHD+N:0.004%SNR:103dBChanneL separation:85dBCutoff frequency (in high pass mode):50HzInput Sensitivity / Input Impedance:28OmV/22kΩOutput Power:Input:RCA,BT,USBTHD+N:0.004%SNR:103dBChanneL separation:85dBCutoff frequency (in high pass mode):50HzInput Sensitivity / Input Impedance:28OmV/22kΩOutput Power:Stereo 165Wx2(4Ω) / 85Wx2(8Ω)BTL 330Wx1(4-8Ω)Power consumption:40W(normaL voLume)Size:210.5X41X198mm(WxHxD)Weight 1.3kg / 2.86LbsPower consumption:40W(normaL voLume)Size:210.5X41X198mm(WxHxD)Weight 1.3kg / 2.86Lbs