Feature:1. Characteristic: The peak power is 4x90W at. 4, support high definition bluetooth, lossless sound quality music, APP control, clear treble, midrange and bass.2. Input and Output: The DSP power amplifier adopts high level 4 channel input, 4 channel output, RCA two channel input and two channel output.3. Simple Debugging: Independent adjustment of front and rear sound field, high, mid and low, volume adjustment of front and rear sound field, delay adjustment of front sound field.4. Universal Application: Car audio amplifier is widely used in car audio system, such as car speakers, good sound quality, bringing you convenience.5. Premium Material: Car radio amplifier is made of upgraded premium metal material, this amplifier is sturdy, not easy to break, practical in use.Specification:Item Type: Car AmplifierMaterial: MetalWorking Voltage: 12VStandby Current: andlt 300maPeak Power: 4x90W At. 4Isolation: andgt 90dBDistortion: 0.01 percent Frequency Corresponding: 20HZ-20KHZSignal To Noise Ratio: 105dBApplicable Models: Universal.Package List:1 xCar Amplifier1 x Manual