<div class="detailmodule_dynamic"><kse:widget data-widget-type="customText" id="1005000004074434" type="relation"></kse:widget></div><div class="detailmodule_html"><div class="detail-desc-decorate-richtext"><div><br/>Features:<br/>1. The ZK-APTX3 Qualcomm BT amplifier board supports APTX and uses two TPA3255 and six JRC2068, with excellent performance. <br/>2. High power digital amplifier dedicated inductor, high current, low magnetic loss, low heat generation, using oxygen free copper wire to improve sound quality, and magnetic shielding mechanism to resist electromagnetic interference. <br/>3. Choose QCC3034 Qualcomm module, supporting transmission encoding SBC, AAC, APTX, APTX-LL, APTX-HD. <br/>4. Adopting enlarged and thickened heat sinks, copper strips for thermal conductivity, and silent fan for air cooling to ensure sufficient power. <br/>5. Equipped with protection mechanism, including input undervoltage, overheating, overcurrent, and short-circuit protection.</div><br/><p>Parameter: <br/>Product Name: 2.1 Channel Qualcomm BT Amplifier Board 300W+300W+600W <br/>Product model: APTX3 <br/>Adaptive power supply: <br/>Working voltage range: 18-50VDC, no sound when the voltage is below 16V. Recommended voltage: 36V-48V, current: 12A or above DC power supply. 【 Attention: DC power supply must be used, AC power is not supported!!! Reversing the positive and negative poles will burn out!!! If using a DC/DC boost module, it is recommended to adjust it to 80% of the limit voltage to avoid module damage caused by overshoot or ripple overvoltage! 】 <br/>Maximum power: <br/>Left or right channel: <br/>300W@50V ，4Ω； <br/>160W@50V , 8 Ω. <br/>Subwoofer: <br/>600W@50V ，2Ω； <br/>300W@50V ，4Ω； <br/>160W@50V , 8 Ω. <br/>In short, the higher the voltage, the smaller the resistance, and the greater the output power. <br/>Compatible speaker: <br/>Left and right channels: Supports 3-8 ohms, speakers up to 300W; <br/>Subwoofer: supports 2-8 ohms, speakers up to 600W. <br/>BT chip: QCC3034, transmission distance of 15 meters <br/>Input method: BT+AUX, BT priority. When using an audio cable for input, BT needs to be disconnected <br/>Number of channels: 2.1, left and right channels+subwoofer <br/>Amplifier chip: Two TI original TPA3255 chips <br/>Protection mechanism: Input undervoltage, overheating, overcurrent, short circuit protection. No input anti reverse connection protection, positive and negative connections cannot be reversed <br/>Product size: <br/>Integrated: 152x120x37mm <br/>External lead type: 131x120x37mm</p><p>Package include: <br/>1X power amplifier board <br/>1X accessory kit<br/></p></div></div><br/>