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A3255-BRZHIFI TPA Digital Power Amplifier 300Wx2 Class D HiFi Fever Amplifier with Bluetooth 5.0

Description:
TPA3255 is a high-performance Class D power amplifier chip, which has Class D efficiency and can bring true high-end sound quality circuit. The device features an advanced integrated feedback design and a proprietary high-speed gate driver error correction function (PurePath ™ Ultra HD). This technology allows the device to maintain ultra-low distortion throughout the entire audio frequency band while exhibiting perfect sound quality. The device operates in AD mode. When THD is 10%, it can drive up to two 315W / 4R loads and two 150W (unclipped power) / 8R loads, and has a 2 VRMS analog input interface to support high-performance DAC (Eg TI's PCM5242) seamless connection. In addition to excellent audio performance, the TPA3255 also has the advantages of high power efficiency and ultra-low power level idle loss (less than 2.5W). This can be achieved by 85mR MOSFET and optimized gate driver scheme. Compared with the traditional discrete implementation scheme, this scheme can significantly reduce idle loss.

Features:
1. Adopt original TPA3255 chip.
2. Built-in high-power HIFI dedicated high-efficiency switching power supply, direct plug 220V.
3. The resistor adopts high-precision chip resistors to ensure a good signal-to-noise ratio.
4. Adopt special inductance for audio to ensure clear and powerful sound.

Specifications:
Working method: Class D
Working voltage: AC 88-264V (international voltage can be used)
Quiescent current: 60mA
Work efficiency: >90%
Output power:
315W / 4Ω, distortion 10%
185W / 8Ω, distortion 10%
260W / 4Ω, distortion 1%
150W / 8Ω, distortion 1%
Frequency response: 20Hz to 20KHz
Dynamic range: >100 dB
Signal to noise ratio: (SNR) >111dB
Size: 183 * 52 * 189mm