<div class="detailmodule_html"><div class="detail-desc-decorate-richtext"><table class="ke-zeroborder" width="100%" cellspacing="0" cellpadding="0" border="0"> <tbody> <tr> <td> <div> <span></span> </div> <span> </span> <div style="padding:15px;border:solid 1px #aeaeae;"> <span> <span style="color:black;font-family:inherit;font-size:12px;">ZK-TB21 2x50W+100W Stereo Audio Receiver Amplifier Board CS8673E/TPA3116D2 Chip Speaker DIY Module With Filter Bluetooth-compatible 5.0<br /> <strong>Feature:</strong><br /> <strong>1. Two Chip Options:</strong> Domestic chip CS8673E, efficient, good distortion and anti popping, transparent sound quality, and strong driving force; Imported chip solution TPA3776D2 with AM interference suppression function; The output has a filter, pure HIFI fever sound quality, and low requirements for speakers<br /> <strong>2. Bluetooth-compatible Audio Amplifier Module:</strong> 2.1 channels, maximum output power 2X50W+100W, with two audio input methods: AUX and Bluetooth-compatible, and a 2-in-1 amplifier board. Bluetooth-compatible 5.0, higher transmission efficiency and longer transmission distance<br /> <strong>3. Knob Adjustment: </strong>The main knob adopts a rotary encoder only used in high-end power amplifiers, achieving 360 degree stepless tuning. Smooth touch, one click start stop, long press on/off operation is simple and convenient; Easily adjust the volume and enjoy the music sound you want. Widely used in shopping malls, home theaters, speakers, etc<br /> <strong>4. Multiple Protection:</strong> Equipped with short circuit protection, overcurrent, overheating, and anti reverse connection protection to prevent comprehensive failure. When an overload occurs, the device reports the fault situation to the processor to protect itself from damage. Copper DC connectors and barrier terminals are used. Can withstand high currents, does not generate heat, and does not damage wires.<br /> <strong>5. Heat Dissipation Mechanism: </strong>Special 50x25x10mm large-area heat dissipation fins are used, and copper coating is tightly attached to the shell for heat dissipation. The heat dissipation area is multiplied to ensure the high performance operation of the product with sufficient power.</span><br /><br/><br/><span style="color:black;font-family:inherit;font-size:12px;"><strong>Specification:</strong></span><br /> <span style="color:black;font-family:inherit;font-size:12px;">Origin: Mainland China</span><br /> <span style="color:black;font-family:inherit;font-size:12px;">Power amplifier chip: TPA3116D2, CS8673E (optional)<br /> TPA3116D2 chip: with filter and AM interference suppression function<br /> Bluetooth-compatible version: 5.0 (unobstructed, 10 meters)<br /> Input sensitivity: 500mV<br /> Input method: AUX+Bluetooth-compatible<br /> Number of channels: 2.1 channels<br /> Adapted power supply: DC12~24V/5A or above (higher voltage, higher output power) Adapted speaker: 20~100W, 4~8 Ω<br /> Output power: Left and right channels ≤ 50W; Subwoofer ≤ 100W<br /> Protection mechanism: overvoltage, undervoltage, overheating, DC detection, short circuit protection<br /> Heat sink size: About 50x25x10mm/1.96x0.98x0.39inch<br /> Amplifier board size: About 118x100x22mm/4.64x3.93x0.86inch<br /> Product weight: About 190g<br /> Tip: Only when the audio input is sufficient and the power supply voltage/current is sufficient can there be sufficient output power. The higher the power supply voltage, the greater the output power, and the smaller the horn impedance, the greater the output power.<br /> Please ensure that the power of the adapter power supply is greater than the actual working power of the amplifier.</span><span style="color:black;font-family:inherit;font-size:12px;"></span><br /> <br /> <p style="color:black;font-family:inherit;font-size:12px;"> <strong>Note:</strong><br /> 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!<br /> Please allow 1-2cm measuring deviation due to manual measurement. </p> <br /> </span> </div> <span><br /> </span> <div> <span> </span> </div> <div style="padding:15px;border:solid 1px #aeaeae;"> <span> 1 x Audio Amplifier Board<br /> <br /> </span> </div> <span><br /> </span> <div style="text-align:center;"> <span> </span> </div> <span><br /> <br /> </span> <div> <span> </span> </div> <div style="padding:15px;border:solid 1px #aeaeae;"> <span><br /> </span> </div> <span><br /> <br /> </span> </td> </tr> </tbody> </table></div></div>