Feature 1 Compact Design: The vehicle 4 channel power amplifier is equipped with high performance electronic components and features a compact design for easy installation. 2 Multiple Protections: This amp has multiple protection circuits including short circuit, overheat, overvoltage, undervoltage, and direct current output protection. 3 Powerful Output: With a strong power output, it is easy to match with speakers, wide working voltage range (10v16v) for wider compatibility. 4 Stable Performance: The pure copper high power transformer and large capacity capacitor provide stable voltage for improved sound quality. 5 Enhanced Heat Dissipation: The amp features multiple porous designs on both sides of the body to greatly improve heat dissipation performance.Item Type: 4 Channel Car AmplifierOutput Power at 2 Ohms: 150Wx4CHOutput Power at 4 Ohms: 100Wx4CHBridge Output Power at 4 Ohms: 320Wx2CHTotal Harmonic Distortion: 0.05%Frequency Range: 10HZ- 20KHZInput Sensitivity: 6V-0.1VSignal-to-Noise Ratio: 96dBImpedance: 2/4 Package List1 x 4 Channel Car Amplifier1 x User Manual8 x Installation Accessory