Product Name: Dta-40A Class T Bluetooth Digital Power Tda7491 Car Professional Amplifier Model NO.: MXTBT-00001 Conductive Mode: D Element Number: Monoamplifier Voltage: DC12V Output Number: 8 Sound Channel: 2.0 Function: Amplifier Combined Tube Type: IC Amplifier Used For: Civilian Usage: Hi-Fi, AV Type: Home Amplifier Trademark: MXY Transport Package: Paper Box Specification: 200*150*90mm Origin: Shenzhen Product Description This product is a high quality, high definition Bluetooth digital audio amplifier. Bluetooth input and line input input can be automatically converted. The default is Line In input. When you want to change to Bluetooth input, you can switch to Bluetooth input mode when Bluetooth is connected to a Bluetooth device. The product power amplifier IC adopts the international top brand TI solution, which has high efficiency, low heat generation, dual-channel output power of 10W, and load speaker design of 4OHM. Universal power supply DC12V power supply, DC power input 5521 universal, audio input universal 3.5 interface, speaker output terminal using 5.08. The outer casing is made of pure aluminum alloy material, high-precision CNC mechanical forming, and the surface of the work is oxidized and frosted. The product is high-end and convenient.Specifications: Power Output:20 watts RMS x 2 into 4 OHM Efficiency:93%Total Harmonic Distortion:<1% @20W <10% @20WDynamic Range:> 40dBMinimum Speaker Impedance:4 OHMFrequency Response:20Hz-20KHzElectrical Requirement:DC12V 3A center pin positiveChip model:TDA7491HV Class-DChannel Separation:95dB Input resistance:60K OHM Bluetooth receiving distance:12MBluetooth version:4.0+EDRAmplifier Weight:0.2kg With power supply Weight: 0.35kgDimensions:L125mm*W72mm*H40mmShell material:Aluminum alloy Package Contents- MXT20W+20W RMS Digital Stereo Amplifier ---------------------- 1pcs- 12V 3A Switch mode power supply ------------------------------------ 1pcs- 3.5mm to 3.5mm cable ---------------------------------------------------- 1pcs- Instructions ------------------------------------------------------------------- 1pcs