Product Model: Professional audio system digital amplifier DS-1000 Power Output Max 8Ω 1100W×2 Power Output Max 4Ω1800W×2 Power Output Max 2Ω 3400W×2 Input Impedance 20KΩ-10KΩ Frequency Response 10Hz-40KHz THD≤0.1% S/N≥105dB IMD≤0.2% Damping Factor 600 DC Protection Have Temperature Protection Have Input Sensitivity 1.1V Net Weight 11kg Gross weight 14kg Dimension HWD 46×500×480mm Low mains consumption and high performance and compact size and light weight Suitable for a wide variety of environment , such as used in highest level of concert touring, stadium sound, large club, stage, theater, auditorium and other demanding installations around the globe. Ultra low noise and excellent high frequency filter supply great signal-to-noise ratio Delay circuit for soft start Unique and complete protection against currents in-rush, DC, shorted, open, close and overheating etc. Low inrush current advance the appliance to operate efficiently. ODM & OEM Available.