The TPA3255 is a high-performance Class D power amplifier with Class D efficiency and 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 entire audio frequency band while delivering perfect sound quality. The device works in AD mode, with a maximum output of 600WX2/2R or 300WX2/4 ohm or 200WX2/8 ohm load and has a 2 VRMS analog input interface that supports connection with high-performance DACs (such as TI's PCM5242) seamless connection. In addition to excellent audio performance, the TPA3255 combines high power efficiency with ultra-low power level idle losses (less than 2.5W). Features: 1. Using 2 pieces of American Tl-TPA3255 original power amplifier modules, the output power separation is much that of a single chip. 2. The front-end differential input circuit adopts boost technology, and the listening feeling is more dynamic than the official single 12V line. 3. Fully shielded, airtight and low-loss sealed inductor. filter capacitor, no pressure at 55V Product indicators: Output power: 600W+600W/2 ohms, 315W+315W/4 ohms, 200W+200W/8 ohms Frequency response: 20HZ-30KHZ +N: 0.006% at 1W/4; Less than 0.01% at clipping Power supply voltage: positive 19V to positive 52V PCB size: 138X128MM Note: The higher the input power supply, the greater the power supply current and the greater the output. The power test is measured at 50V power supply. If you switch to a 24V36 low-voltage power supply, the output power be reduced accordingly. Colour:black Material:ABS Package Contents: 1 * HIFI digital amplifier board (without Bluetooth) Only 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.