Features: Energy-Efficient Powerhouse: The power amplifier board, powered by the TPA3116D2 Class D stereo amplifier chip, boasts an impressive energy efficiency of up to 90% or more. This efficient design ensures maximum audio output with minimal power consumption, making it an ideal solution for power-conscious users and high-power applications. Clear Audio without Interference: With a high switching frequency of up to 1.2MHz, the board effectively eliminates AM interference, delivering pristine and undistorted audio. Enjoy a crisp, clear listening experience without any unwanted noise, making it perfect for demanding audio setups. Innovative Modulation for Enhanced Performance: Leveraging a proprietary hybrid modulation scheme, the TPA3116D2 chip within the power amplifier board achieves significant power consumption improvement and further boosts energy efficiency. This innovative technology ensures that every watt counts, delivering exceptional audio performance. Future-Ready Upgradeability: The power amplifier board's excellent compatibility and high-performance capabilities offer a flexible upgrade path for users. As audio technology advances, the board can easily adapt to new standards and enhancements, ensuring your audio system stays current and relevant. Versatile Audio Solution: Whether you're building a home theater system, upgrading your car audio, or designing a portable audio device, the power amplifier board is a versatile solution that meets the demands of various applications. Its ability to handle high sound quality and volume requirements makes it the perfect choice for audio enthusiasts and professionals alike. Specifications: Model: XH-A318 Chipset: TPA3116D2 (With AM interference suppression function) Power Input: DC12-24V Audio Input: AUX / Bluetooth 5.0 Pro Output Power: 30W*2 when input DC12V, 50W*2 when input DC24V Output Impedance: 2-4 Ohm External Size: 80*50mm / 3.15*1.97in Package Included: 1 x Power Amplifier Board