Description
<h3>High Power 2.1 Channel Digital Subwoofer Audio Amplifier Board</h3>
<p>Build your ultimate 2.1 home theater sound system or heavy bass boombox with this premium Class-D audio amplifier module. Built on high-performance dual TPA3116D2 digital amplifier chips, it provides crystal-clear stereo sound and deep, punchy low-frequency bass output without thermal throttling.</p>
<h4>Key Features:</h4>
<ul>
<li><strong>2.1 Channel Configuration:</strong> Drives 2 satellite speakers (up to 50W each) and 1 dedicated passive subwoofer (up to 100W).</li>
<li><strong>Triple Potentiometer Control:</strong> Independent adjustment for Main Volume, Subwoofer Bass Volume, and Stereo Channel Volume.</li>
<li><strong>Dual Audio Input Modes:</strong> Supports 3.5mm AUX audio jack and 3-pin audio input terminal for easy integration with Bluetooth decoder boards.</li>
<li><strong>Heavy-Duty Heat Sink:</strong> Pre-installed aluminum heat sink ensures cool and stable continuous operation under heavy loads.</li>
<li><strong>Dual Power Input Options:</strong> Standard 5.5×2.1mm DC barrel socket and screw terminal block support.</li>
</ul>
<h4>Technical Specifications:</h4>
<ul>
<li><strong>Chipset:</strong> TPA3116D2 Dual Class-D Core</li>
<li><strong>Operating Voltage:</strong> 12V – 24V DC (Recommended: 24V 5A–8A Power Supply)</li>
<li><strong>Output Channels:</strong> 3 Channels (Left Channel + Right Channel + Subwoofer)</li>
<li><strong>Output Power:</strong> 50W (Left) + 50W (Right) + 100W (Subwoofer)</li>
<li><strong>Speaker Impedance Compatibility:</strong> 4Ω to 8Ω</li>
<li><strong>Frequency Response Range:</strong> 14Hz – 100kHz</li>
</ul>
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