Features: TPA3255 is a high-performance class D power amplifier, it has class D efficiency and can bring true high-end sound quality. 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 audio frequency band while exhibiting perfect sound quality.  Using original TPA3255, QCC3008 Bluetooth 5.0 chip supports APTX/JRC5532 op-amp.  The main filter electrolytic capacitor uses 1000UF/50V imported from Japan to ensure strong continuous power support.  The high-current inductance with a red-gray ring for audio is adopted to ensure the sound is clear and powerful.  PCB adopts a 1.6mm thick double-sided board, 2.0 oz copper thickness, and a full tinning process to ensure the good passing performance of large and small currents. First-class PCB quality.  The machine adopts an all-aluminum chassis, and the surface of the chassis is treated with a wire drawing oxidation coloring process.  Channel:2;  Input mode:switch analog and Bluetooth input;  Working method:Class D;  Working voltage:AC220V;  Size:240x190x65mm, antenna length 105mm;  The total output power when the total harmonic distortion + noise (THD+N) is 1%:(240W/4Ω)*2;  The total output power when the total harmonic distortion + noise (THD+N) is 10%:(325W/4Ω)*2;  Weight:1.7KG;     Package Included:      1 x Power Amplifier