AIYIMA S400 [Updated Model] 100W Bookshelf Active Speaker with Dual Mode 3-inch Bluetooth HiFi Home Subwoofer for Music System, TV, and Computer

The S400 uses a wood cavity + PVC iron construction process. The wood cavity minimizes resonance while ensuring beautiful sound reproduction. The S400 uses the TPA3118 amplifier chip, a high-efficiency TI Class D audio amplifier chip from the United States, with a maximum power of 50W*2. The S400 bass speaker features a 3-inch glass fiber cone, featuring good rigidity that is not easily deformed, ensuring strong, distortion-free bass. The tweeter uses a 20-core silk film tweeter, ensuring perfect sound reproduction. A variety of input modes, including Bluetooth, fiber optic, RCA, and USB/DAC sound card functionality, can meet the needs of a variety of users. S400 can be used through USB interface and audio digital connection, removes traditional modes such as signal transmission distortion, and achieves a maximum 16-bit 48KHz transmission rate, equivalent to DVD sound quality. The advantage of DAC transmission is that you don't need to spend a lot of money to buy old analog signal lines, so that the distortion is smaller, and the sound interpretation is stronger!