The TS Series amps by Taramp's are some of the best-seller amps in the world, with a solid reputation for delivering high performance audio with power and zero distortion, in an extremely compact size. 4 Channels 400 watts Small form factor Input Sensitivity: 200mV (Vol=Max) Signal to Noise Ratio: greater than 90dB Frequency Response: (Full Range): 18Hz to 30kHz (-3dB) High Pass Crossover (HPF): 90Hz (-12dB / 8th) Low Pass Crossover (LPF): 90Hz (-12dB / 8th) Standby Power: 0.8 A Maximum Musical Power: at 13.8VDC: 16.5 A Maximum Consumption in Sine Signal: (1kHz) 13.8VDC: 33 A Input Impedance: 22K Ohms Thermal Protection System and Short Output Minimum Supply Voltage: 8 VDC Maximum Supply Voltage: 16 VDC