Audio Amplifier Module ZK MT21 2.1 Channel Bluetooth Digital Power Board

Audio power amplifier with antenna and antenna base, the signal is better, the efficiency is high, and the anti-interference ability is strong. Multiple Protection The digital Bluetooth power amplifier module has multiple protection mechanisms to ensure its safe operation. It has short circuit protection, overcurrent, overheating and reverse polarity protection. Applicable: Bluetooth 5.0 power amplifier board with 36 ​​x 25 x 10mm/1.42 x 0.98 x 0.39 inch large heatsink, applicable power supply DC12-24V 5A and above (24V battery cannot be connected), applicable speakers 20-100W, 4-8Ω. Uses: This can be a mini amplifier board, which due to its excellent performance, widely used in store requests, home theater, square speakers, etc. Precautions: The amplifier board has enough output power only when the sound input is sufficient and the voltage and current of the power supply are sufficient. The higher the supply voltage, the higher the output power, the smaller the speaker impedance, the higher the output power. Please make sure that the power of the power supply is greater than the actual power of the amplifier!