TPA3255 MAX HiFi Digital Amplifier Board — Upgraded 600W (300W x 2) Stereo, Low Noise

Confirmed working at 52V. Due to higher material costs, some components have been upgraded; the board is capable of reliably driving 4-8 Euro speakers. Under the same power supply the output power can be increased by more than 50%. TPA3255 is a high-performance Class D power amplifier chip that combines Class D efficiency with true high-end audio circuitry. It uses an advanced integrated feedback design and a proprietary high-speed gate driver error correction function (PurePath)™ to deliver ultra-high definition sound with ultra-low distortion across the audio band. The device operates in AD mode and can drive up to 2 315W/4R loads and 2 150W (unshipped power)/8R loads at a of 1.5%. A 2 VRMS analog input interface allows seamless connection to high-performance DACs (such as TI's PCM5242). In addition to excellent audio performance, the TPA3255 offers high power efficiency and ultra-low idle loss (less than 2.5W), achieved through an 85mR MOSFET and an optimized gate driver scheme that significantly reduces idle loss compared to traditional discrete implementations. Because some parts may occasionally be unavailable, substitutions can be made; please verify performance after any change, as each upgrade may result in some changes.