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ZK-MT21 Mini Digital Amplifier Board, Wireless Bluetooth 5.0 Subwoofer Amplifier Board, 50Wx2+100W Audio Power Amplifier, AUX Bass Amplifier, Suitable for DIY Home Theater Audio System
Product Information:
Name: 2.1 Channel Bluetooth Digital Power Amplifier Module
Model: ZK-MT21
Material: Iron
Color: Black
Size: 9.3x9x2.2 cm
Bluetooth: 5.0 (unobstructed, 15 meters)
Channel: 2.1
Input Sensitivity: 500 mV
Audio Input: AUX+Bluetooth
Chip Solution: TPA3116D2 (with AM interference suppression)
Adaptable Power Supply: DC 12~24V/5A or higher (24V battery cannot be connected).
Compatible Speakers: 20~100W, 4~8Q
Protection Mechanism: Anti-reverse connection, overheating and overcurrent, short circuit protection
Features:
✔ Input and Output: The power amplifier board supports AUX+BT sound source input and subwoofer + left and right channel output.
✔ Easy to Install: The stereo power amplifier board is easy to install and use, providing you with a stable and fast connection and wide compatibility.
✔ Adjustable: This sound amplifier is sufficient to meet your various needs; you can adjust the frequency, volume, treble, bass, etc.
✔ Protection Function: The high-power amplifier board features anti-reverse connection, overheating protection, overcurrent protection, and short circuit protection.
✔High Performance: 2.1-Channel BT 5.0 Subwoofer Amplifier Board, High-Power Stereo, Suitable for 15-100W, 4-8Ω Speakers.
Package Includes:
1 * Amplifier
Note:
Only when the audio input and power supply voltage/current are sufficient will there be sufficient output power!
The higher the power supply voltage, the higher the output power, and the lower the speaker impedance, the higher the output power!
Please make sure that the power of the suitable power supply is higher than the actual working power of the amplifier!
Note:
Please allow a size error of 1-3 cm due to manual measurement. Please make sure you do not mind before ordering.
Due to differences between monitors, the pictures may not reflect the actual color of the item. Happy online shopping!











✔ Input and Output: The power amplifier board supports AUX+BT sound source input and subwoofer + left and right channel output.
✔ Easy to Install: The stereo power amplifier board is easy to install and use, providing you with a stable and fast connection and wide compatibility.
✔ Adjustable: This sound amplifier is sufficient to meet your various needs; you can adjust the frequency, volume, treble, bass, etc.
✔ Protection Function: The high-power amplifier board features anti-reverse connection, overheating protection, overcurrent protection, and short circuit protection.
✔High Performance: 2.1-Channel BT 5.0 Subwoofer Amplifier Board, High-Power Stereo, Suitable for 15-100W, 4-8Ω Speakers.
Package Includes:
1 * Amplifier
5 verified ratings
Hey there it a good product,i love it very much, it sound good and rich
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