Output power (8 Ohm): 2*1600W Bridged:(8Ohm): 4800W Input Impedance: 20 K Ohm Frequency Resonse: 50Hz-50KHz T.H.D: 20Hz 20KHz 0.05% Slew rate: 40V/usec S/N: 103dB Dam Modulus (8Ohm) : >400 Radiator: High/Low automatism control DC safeguard / out overloading/ chancroid startup/ boot-strap short test. Power Voltage: AC220V/50Hz, AC110V/60Hz (AVAILABLE)