Now for May 2024 again after the new modification of the product, 52V also completely normal work, the material is also more fever, can perfectly drive 4-8 ohm speakers!The TPA3255 is a high-performance Class D power amplifier chip with Class D efficiency and a circuit that delivers true high-end sound quality. The device features an advanced integrated feedback design and proprietary high-speed gate driver error correction (PurePath Ultra HD).This technology allows the device to maintain ultra-low distortion across the audio frequency band while delivering sound quality. The device operates in AD mode, driving up to two 315W/4R loads and two 150W (unclipped power)/8R loads at 1.5% , and features a 2 VRMS analog input to support seamless connectivity with high-performance DACs such as TI's PCM5242.In addition to excellent audio performance, the TPA3255 combines high power efficiency with ultra-low power-stage idle loss (less than 2.5W). This is achieved with 85mR MOSFETs and an optimized gate driver scheme. This solution significantly reduces idle losses compared to traditional discrete implementations.Note:Slight differences in appearance due to differences in factory batches will not affect product use.Colour:BlackMaterial:PlasticPackage Contents:1 * Digital Amplifier BoardOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.