Features:

HIFI Stereo, a high-quality two-channel amplifier board for HIFI music

It supports both AUX input and Bluetooth connection (BT5.0) for higher transmission efficiency and longer distance

The integrated high-performance processor chip is a class D amplifier integrated circuit. The modulation frequency can reach 1.2MHz and the distortion of the high-power output is less than 0.1%. Built-in LC filter capacitor, making the human voice clearer.

Both AUX and Bluetooth-compatible inputs are supported, supporting Bluetooth-compatible version 5.0.

The transmission distance is longer, up to 15 meters in outdoor environments. If your device does not have a Bluetooth-compatible module, you can also input audio signals through the 3.5mm headphone jack.

Protection mechanism: The amplifier board has overheating protection, overvoltage protection, undervoltage protection, and short circuit protection



Specifications:

Item: ZK-TB21 Amplifier Board

Chip: TPA3116D2

Input voltage: DC12V-24V5A

Power: 50Wx2 (left and right channel) + 100W (subwoofer)

Channel: 2.1-channel stereo output

Output impedance: 4-8

Bluetooth-compatible version: BT5.0

Length: about 118mm/4.65in



Note:

Due to lighting effects and shooting angles, there will be Some tolerances in the product, please understand.

Please allow 0-1cm error due to manual measurement.



Package includes:

1 set ZK-TB21 Amplifier Board