Specification: Origin: Mainland China Preamplifier OP: NE5532 Subwoofer amplifier board Power amplifier chip: TPA3116D2 Working voltage: DC 8-25V Maximum 50W+50W otubu dual channel Efficiency up to 90% Can be connected to a boost board Power supply: 8-25V Product size: 75.00x60.00x20.00mm Product size: 2.95x2.36x0.79inch Note: Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! Please allow 1-2cm measuring deviation due to manual measurement. Included: 1 x Digital Power Amplifier Board 1. High-Quality Audio Output: Our TPA3116D2 digital power amplifier board utilizes advanced digital audio processing technology, delivering high-fidelity and low-distortion audio output. It reproduces detailed, clear, and lifelike sound effects, enhancing the overall quality of music and audio. With a single-channel power output of up to 100 watts, it can drive speakers with higher power requirements, resulting in more powerful and dynamic sound. 2. Wide Power Supply Voltage Range: The TPA3116D2 audio stereo amplifier board is compatible with a wide range of power supply voltages, typically ranging from 8V to 26V. This allows users to choose the appropriate power supply voltage based on their specific needs, increasing flexibility and applicability. 3. Low Power Consumption and High Efficiency: Designed with an efficient Class D amplifier, the TPA3116D2 mono amplifier board boasts low power consumption and high energy efficiency. It effectively reduces energy loss and heat generation while delivering high-quality audio output, thereby improving the overall amplifier efficiency. 4. Multiple Protection Mechanisms: The TPA3116D2 audio amplify board features various protection functions, including over-temperature protection, over-current protection, over-voltage protection, and short-circuit protection. These mechanisms effectively safeguard the amplifier board and speakers, preventing damage and potential malfunctions. 5. Easy to Use and Integrate: Our TPA3116D2 amplifier board power amp board is designed with user-friendly interfaces and clear labels, ensuring easy installation and wiring. It typically includes volume control, input selection, and other control functions, making it convenient for users to adjust and operate the amplifier board.