DSPPA (Italia) All-in-One Amplifier MP8745 Specification Rated Power: 450W/ 600W Zone output: 6 zone/100V Sinal noise ratio: 80dB (AUX); 70dB (MIC) Prequency Response: 80Hz - 15kHz (MIC) Prequency Response: 50Hz - 20kHz (AUX) Output mode: 70V, 100V ...