1. High current, low magnetic loss, small parasitic capacitance, low heat generation, use of oxygen free copper wire to improve sound quality; The magnetic shielding mechanism has strong anti electromagnetic interference EMI performance.2. Thickened heat sink, silent and long-life fan; Solved the heat dissipation problem and better utilized the advantages of high power3. Transparent sound, fast low-frequency response, strong mid frequency texture, high frequency smoothness, and minimal loss4. Extremely low noise, quality, extremely low distortion, protecting your original-sound experience5. High density wrapped shielded wire+high-quality connectors; The outer winding shield is produced by twisting high-density environmentally-friendly tinned copper wire, with high density, which plays a good shielding role in connecting signals.Product name:2.1 channel Qualcomm Bluetooth power amplifier board 100W+100W+200WProduct model:-APTX1Adaptable power supply:Working voltage range:12-30VDC, recommended voltage24V-28V, DC power supply with current 10A or aboveMaximum power:Left or right channel-105W@30V, 4ohm; 55W@30V, 8ohm.Subwoofer-208W@30V, 2ohm; 105W@30V, 4ohm.In short, the higher the voltage, the smaller the resistance, and the greater the output power.Compatible speakers:left and right channels, supports 3-8 ohm speakers within 100W;The subwoofer supports speakers with 2-8 ohms and within 200W.Bluetooth chip:QCC3034, transmission distance 15 metersInput :Bluetooth + AUX, Bluetooth priority, when using audio cable input, Bluetooth needs to be disconnectedNumber of channels:2.1, left channel + right channel + subwooferPower amplifier chip:two TI TPA3221Protection mechanism:input undervoltage, input anti-reverse connection, erheating, overcurrent, short circuit protection.Note:The delivery does not include power supply and audio cable.Colour:BlackMaterial:PCBSize:118x100x25mmPackage Contents:1 * Amplifier Board (with leads)Only the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.