Taramp's is one of the leading brands in car audio in the world. The DS Series amps are new models with cutting edge technology - they are an evolution of the best-selling TS Series. The DS440X4 fits on the palm of your hand and delivers stunning power in 4 channels. Technical Specs: • Number of Channels: 4 • Maximum Power: @ 12.6 VDC - 2 OHMS: 440W RMS (4 x 110W RMS) @ 12.6 VDC - 4 OHMS: 276W RMS (4 x 69W RMS) 2 Bridged Channels: @ 12.6 VDC - 4 OHMS: 440W RMS (2 x 220W RMS) • Input Sensitivity: 250mV • Signal Noise/Ratio: >89dB • Frequency Response: 8Hz ~ 26KHz(-3dB) • Crossover High Pass (HPF): 90Hz(-12dB/8ª) Fixed • Crossover Low Pass (LPF): 90Hz(-12dB/8ª) Fixed • Input Impedance: 18K OHMS • Output Impedance: 2 OHMS • Protection System: Short output • Minimum Supply Voltage: 8 VDC • Maximum Supply Voltage: 16 VDC • Idle Consumption: 0.8 A • Maximum Musical Power: @12,6 VDC - 23,5A • Maximum Sine Signal Consumption: 47A • Dimensions (WxHxD): 160 x 44 x 145mm • Weight: 0,60Kg