Item Name: TPA3255 300W+300W Digital Power Amplifier Board 24-48V 2.0 Channel Audio Stereo. Product DescriptionTPA3255 is a high-performance class D power amplifier, it has class D efficiency and can bring true high-end sound quality. The device features advanced integrated feedback design and proprietary high-speed gate driver error correction function (PurePath Ultra HD). This technology allows the device to maintain ultra-low distortion throughout the audio frequency band while exhibiting perfect sound quality. The device works in AD mode. When the THD is 10%, it can drive up to 2 315W/4R loads and 2 150W (unclipped power)/8R loads, and has a 2 VRMS analog input interface that supports high-performance DAC (For example, TI's PCM5242) seamless connection. In addition to excellent audio performance, TPA3255 also has two major advantages: high power efficiency and ultra-low power level idle loss (less than 2.5W). This can be achieved with an 85mR MOSFET and an optimized gate driver scheme. Compared with the traditional discrete implementation, this solution can significantly reduce idle loss.product details:1. Use original TPA32552. The computing end uses the replaceable DIP-8 op amp *2, and buyers can upgrade the computing model independently. This product uses 2 TI high-performance audio operational amplifiers NE5532P3. The main filter electrolytic capacitor adopts Nichicon capacity 2200UF/63V*2, 6 Nichicon FW series 10UF golden audio input coupling capacitors. Other filter capacitors use Nichicon series.4. Adopt SAGAMI 7W14A inductor for audio digital class D amplifier to ensure the sound is clear and powerful.Basic performance parameters:Working method: Class DStandby current: 80mAWork efficiency:.>90%Channel: 2.0Rest/mute: short circuit mute functionOutput Power:315W/4, distortion 10%185W/8, distortion 10%260W/4, distortion 1%150W/8, distortion 1%Frequency response: 20Hz to 20KHzDynamic range: >100 dBSignal to noise ratio: (SNR)> 111dBWorking voltage: DC24-40V switching power supply(recommended voltage 36V)PCB size: 110*70*36.5MM (small size, high power, more convenient DIY installation)Package list:Power amplifier board*1Buyers note: The indicator light works normally. If the circuit board fails or the temperature is too high, the corresponding LED light will be turned off as a warning. If you mind, please don't place an order! thank you for understanding
