1 CX series amplifier is noise-free. It will increase the quality of your work. 2 Excellent circuit type ClassAB.It can make more less distortion and better sound. 3 Integrate protect impact function of the power soft-start, DC output protect function, longtime over-heat protect function, and turn on delay function. It can speedy protect the circuit when the amplifier short circuit and over loading.It works steady on performance for long time. 4 It can ues in concert hall,hobby,bars,nightclubs,evening,schools,theatres and so on. Model CX-880CX-1080CX-1180Stereo 8 Ω2×800W2×1000W2×1100WStereo 4 Ω2×1200W2×1500W2×1650WBTL2400W3000W3300WTHD+N<0.05%Frequency Response20Hz-20KHz0.775V/1.0V/1.4VS/N Rate>105dBIMD0.05%Slew Rate100V/μSInput Impedance20KΩ