Item Type: Class D Amplifier RMS Output Power 1 (Watts): 1CH x 200W THD: 0.15 Frequency Response ( 2db): 10HZ~300HZ Signal to Noise Ratio: 90dB Sensitivity: 320mV~6V Recommended Fuse Type: 20A x 1 Package List 1 x Amplifier 1Wide Range of Applications: Our car amplifiers are extensively used in car audio systems, such as car speaker, which can bring you more convenience and enjoyment. 2High Efficiency: Power loss is significantly reduced, making the amplifier highly more efficient, and excessive energy is stored until it is needed, instead of being converted into heat. 3Accuracy Manufacturing: With elaborate manufacturing technology and exquisite workmanship, to ensure stable performance and high reliability. 4Futher Infromatin: The frequency response of our car audio amplifier is between 10HZ and 300HZ, the signal to noise ratio is greater than 90dB, the sensitivity is between 320mV and 6V, and we recommend you to use 20A fuse type. 5Easy to Operate: The installation process is simple, no complex step is required, both convenient and easy for you to use.