Douk Audio M3 HiFi 2.1 Channel Digital Amplifier with Bluetooth 5.0 Subwoofer Power Amp USB Player

Notice: U-disk input is prior to Bluetooth and RCA input, so please make sure U-disk has been pulled out if you want Bluetooth or RCA input. Features M3 amplifier supports stereo RCA and Bluetooth 5.0 input, compatible with phones, tablets, computers, TVs, MP3 players, TV, CD players etc. It is also a digital music player with U-disk input supporting MP3 and lossless formats such as WAV, APE, FLAC and WMA. Reasonable circuit layout and concise wiring ensures HiFi clear and clean sound, treble and bass control makes sound more delicate and charming. Independent low frequency adjustment and bass volume control are designed, the bass effects is greatly enhanced, the shocking auditory effects make you feel like in the cinema. Separate structure makes it multi-functional, it can independently connect to a pair of stereo speakers or subwoofer, and a low frequency output is specially added for the users who only have active subwoofer, easy to build 2.0 channel / 2.1 channel / 2.2 ch