1. TPA3255 HIFI Chip: The S350H power amplifier board uses two TPA3255 power amplifier chips. Support wide voltage input of 18?38V, power up to 220W x 2+350W (PMPO).
2. High Compatibility: The DC adapters on the market (plug size 5.5mm x 2.1mm) can basically meet the needs of the S350H Bluetooth power amplifier board. If you don't have a DC plug, please don't worry, you can also directly connect the positive and negative poles of the wire to the power socket of the amplifier board.
3. Reble And Bass Control: If you are tired of an amplifier with only one volume knob, then you feel right, because you have further requirements for audio. By adjusting the high and low frequency knobs of the S350H power amplifier board, you can make the sound more layered and make the bass more shocking.
4. Function: S350H Bluetooth power amplifier board has multiple mechanisms to ensure its . With short circuit , undervoltage , overvoltage , clipping .
5. AUX Audio Connection: Independent adjustment of left and right channels for high and low frequencies. 360 degree infinite tuning.

Specification:
Item Type: Bluetooth Power Amplifier Board
Product Material: PCB
Weight: Approx. 375g / 13.2oz
Bluetooth Version: 5.1
To Noise Ratio: 92dB
Frequency Range: 20Hz-20KHz
Power Supply: DC 18-38V/10A Or
Audio Channel: 2.1 Channels
Audio Output: Left And Right Channels And Subwoofer
Audio Input: Bluetooth, AUX, USB Drive, USB Sound Card
Output Power: 2 x 220W (Left And Right Channels), 350W (Bass)
Maximum Output Power Of Left And Right Channels: 220W/3?2--36VDC 175W/4?2--36VDC 100W/8?2--36VDC
Maximum Output Power Of Subwoofer: 355W/2?--36VDC 250W/3?--36VDC 195W/4?--36VDC
Subwoofer Adapter Speaker: 20W-200W/2?-8?
Volume Adjustment: High End Encoder Knob Adjustment, Smooth Touch
Mechanism: