Based on all functions of digital power amplifier, vector power amplifier has the following strong points:lower power consumption, lighter weight, smaller cubage, more advanced techinque, higher energy conversion rate, high fidelity, with wide dynamic range and hight frequency response, it can display perfect on the original sound effect. Suitable in flowing performance and rock band performance power amplifier professional amplifier (Specifications)MODEL)SP-12(Power) (Stereo)8Ω2x1000W (Stereo)4Ω2x1800W (Bridge)8Ω2300W(Noise):<-110dB(Sensitivity):0.775V 1.0V 1.41V(Distortion):0.08%(S/N ratio):(10KHz)>70dB(Frequency response):20Hz-22KHz(Input impedance):>20KΩ(Output impedance):<60mΩ(Power supply):AC180-245V(Size):510x480x45(mm)(Carton):620x510x100(mm)(Weight):10Kg