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Digital PA High Power Amplifier Professional Audio Amplifier Power Amplifiers. High Efficiency Design: Features multi-loop control technology with efficiency exceeding 95%. Comprehensive Protection: Includes under voltage, DC output, overheat, temperature, and overload protection. Active PFC Technology: Uses active PFC and soft switching power to adapt to harsh environments. Class D Amplification: Professional Class D tube type ensures stable and reliable performance. Versatile Application: Ideal for AV, KTV, conference halls, stadiums, and multi-functional halls. OEM & ODM Support: Professional manufacturer offering custom design and branding services.