DC12-24V ZK-TB21 PRO Bluetooth Amplifier Board 2.1 Channel 50W×2+145W TPA3116D2 Overcurrent Overheat Short Circuit Protection

Quantity : 1 High-concerned chemical : none Package : SOP is_d : Yes Supply Voltage : DC 12-24V Type : Module Origin : Mainland China Condition : New Operating Temperature : 0-50C

1.2.1 Channel independent output 50W+50W+145W, supports subwoofer, high fidelity and low distortion. 2. SOP8 and DIP8 are compatible with dual packaging, allowing for free switching of operational amplifiers. 3. Supports lossless decoding of WAV, APE, and FLAC modes on USB drives. 4. With protection mechanism: input undervoltage, overheating, overcurrent, short circuit protection, and input anti reverse protection. 5. Onboard microphone board expansion port and subwoofer expansion port, as well as a mute control port for cascade anti POP sound. Product Name: 2.1 Channel Bluetooth Amplifier Board 50W+50W+145W Product model: ZK-TB21 PRO Chip: TPA3116D2 Suitable power supply: The working voltage range is 12-24VDC, and it is recommended to use a DC power supply with a voltage of 24V and a current of 8A or above. Cannot use 24V battery, fully charged will cause overvoltage. DC power supply is required, AC power is not supported!!! 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!!! Maximum power: Left and right channels ≤ 50W, subwoofer ≤ 145W Compatible speaker: Left and right channels: 20-50W, 4-8 Ω subwoofer: 50-150W, 2-8 Ω Bluetooth distance: transmission distance of 15 meters Input method: Bluetooth+AUX+PC+USB, Bluetooth priority, Bluetooth needs to be disconnected when using audio cable input Number of channels: 2.1, left and right channels+subwoofer Protection mechanism: Input undervoltage, overheating, overcurrent, short circuit protection, with input anti reverse protection Product dimensions: Integrated with shell 119 * 100 * 25mm Shell less integrated 119 * 100 * 22.8mm Lead type 101 * 100 * 18.2mm Tip: Only when there is sufficient audio input and sufficient power supply voltage/current, will there be sufficient output power!!! The higher the power supply voltage, the greater the output power, and the smaller the speaker impedance, the greater the output power!!! Please ensure that the power of the adapted power supply is greater than the actual working power of the amplifier!!! 1X power amplifier board 1X screwdriver label:yes