... space.Classical PWM coding technique and more than 300KHZ switch frequency make this product in high quality. D, Amplifier makes in ... been greatly enhanced. E, Quite quiet, zero noise, excellent high frequency filtering makes the amplifier a very high S/n ratio( signal ... (0dbu)>1.2v(0dbu)Smpte IMD3.15hz-15khz <0.08% Frequency responseRated power,20hz-20khz,<+/-0.2dbInput inpedanceRated power ,1khz 20 ...