915 Generation -AS21 2.1-Channel Bluetooth Digital Amplifier Board TPA3251

Product name: 2.1 channel bluetooth audio power amplifier module
Product model: -AS21
Chip: TPA3251
Bluetooth version: 5.1
Input : Bluetooth+AUX+U disk+USB sound card Number of channels: 2.1 channels (left and right channels + subwoofer)
Volume adjustment: high-end encoder knob adjustment, feel
Power supply: DC18-38V ≥10A
Voltage Gain: 30dB
Output power: left and right channels ≤ 220W; subwoofer ≤ 350W
Adapter speakers: left and right channels 30-220W, 3-8Ω; subwoofer 30-350W, 2-8Ω
Protection mechanism: electrostatic protection, overcurrent protection, short circuit protection, overheating protection
Unique function: support Audio-APP control
Product size: 141 x 131 x 27(mm)
Tips:
1. When the audio signal input is enough and the power supply voltage/current is enough, there will be enough output power!
2. The higher the power supply voltage, the greater the output power, and the smaller the speaker impedance, the greater the output power!
3. that the power of the adapted power supply is the actual working power of the power amplifier!
color:Black
Material:PCB+Metal Package Contents:
1 x 2.1 channel power amplifier board
1 x Screwdriver Only the above package content, other are not included.
Note: Light reflection and different displays may cause the color of the item in the a little different from the real . The measurement allowed error is +/- 1-3cm.