https://aoshida-audio.com/products/dilvpoetry-tube-t7 Max power output:1500mW/32Ω Power supply DC12V Frequency response:20Hz-20kHz（±0.5dB) S/N Ratio::≧105dB THD:0.05% Audio Inputs:RCA*1;XLR Audio outputs：XLR;6.35MM Packing size：L310*W280*H70MM packed weight：1.2kG