occkic | DC18-55V TPA3255 HIFI Digital Amplifier Module Dual-channel 300W*2 stereo Audio Speaker No Bluetooth interfere Pure sound DAC

Product Features:1. Equipped with TPA3255 professional amplifier chip, low distortion HiFi pure sound quality2. Wide voltage DC 18-55V power supply, dual channel peak power of 300W, strong adaptability to 4/8 ohm speakers3. Using high-quality materials, it can effectively restore audio details and achieve high power efficiency4. Class D amplification efficiency exceeds 90%, low no-load loss, and lower heating during long-term high load operation5. Pure analog input without Bluetooth interference, compatible with high-end DAC, suitable for desktop audio setupProduct IntroductionThe chip model TPA3255 used in this model is a high-performance Class D power amplifier chip, which has Class D efficiency and can bring true high-end sound quality to the circuit. This device features advanced integrated feedback design and proprietary high-speed gate driver error correction function (PurePath Ultra HD). This technology enables devices to maintain ultra-low distortion throughout the entire audio frequency band while showcasing sound quality. This device operates in AD mode and can drive up to 2 315W/4R loads and 2 150W (uncut power)/8R loads at a THD of 1.5%. It also features a 2VRMS analog input interface that supports seamless connection with high-performance DACs such as TI's PCM5242. In addition to excellent audio performance, TPA3255 also has two major advantages: high power efficiency and ultra-low power idle loss (less than 2.5W). This can be achieved through an 85mR MOSFET and an optimized gate driver scheme. This scheme can significantly reduce idle losses compared to traditional discrete implementation schemes.Product Parameters:Input voltage: DC 18-55V (DC power supply input voltage must be above 18V for sound output); Current above 5AOutput power: 2 * 300W (up to 315W+315W)Chip model: TPA3255Frequency response: 20Hz to 20KHzDynamic range:>100dBSNR ：>111dBWork efficiency:>90%Product size: 122.5X73.5X24.0MMOutput power:315W/4 Ω distortion 1.5%185W/8 Ω distortion 1.5%260W/4 Ω distortion 1%150W/8 Ω distortion 1%Notes:Do not short circuit the audio cable; The power supply cannot be reversed; The maximum voltage shall not exceed 50VThe input voltage of the DC power supply must be above 18V for sound output, and the maximum should not exceed 52V.Product List:1X power amplifier board1X accessory kit