Diymore ZK-TB21/ZK-TB21S 2.1-channel Stereo Bluetooth 5.0 Digital Power Amplifier Module 2*50W 160WX2+220W AUX Digital Power Amplifier Board Speaker Home Music Wireless Module Audio High and Low Pitch Subwoofer zk tb21 tb21s

[product name] 2.1 channel bluetooth audio power amplifier board module
【Product Model】ZK-TB21S
【Amplifier chip】 TPA3116D2
[Number of channels] 2.1 channels (left channel + right channel + subwoofer)
【Input method】 AUX+Bluetooth+U disk+USB sound card
【Bluetooth version】5.1
【Switch mode】Mechanical switch (no need to wait for a long press)
【Adapter power supply】DC12~24V ,≥8A
[Adapted speakers] Left and right channels 20-50W, 4-8Ω subwoofer 20-100w, 3-8Ω
[Output power] Left and right channels ≤ 50W subwoofer ≤ 100w
[Protection mechanism] Input anti-reverse connection, overheating, overcurrent, short circuit protection
【Product size】119*100*22mm
【Product weight】Net weight 196g including packaging 248g
Tip: Only when the audio signal input is large enough and the power supply voltage/current is large enough will there be enough
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 power amplifier!

list
1*Bluetooth audio power amplifier board module