Product Description:
This is an audio power amplifier board that strengthens low-power, inaudible electronic audio signals such as the signal from radio receiver or electric guitar pickup to a level that is strong enough for driving loudspeakers or headphones. Power amplifiers make the signal audible to listeners. It is the final electronic stage in a typical audio playback chain before the signal is sent to the loudspeakers and speaker enclosures.
Features:
- Digital amplifier has a higher overload capacity than analog amplifier, and it won't cause crossover distortion, transient inter modulation distortion and you don't have to worry about the loudspeaker internal resistance. 
- It supports Bluetooth audio input and 3.5mm audio jack auxiliary input. 
- Dual channel of 30W+30W power output and a wide input voltage range from 8V to 26V DC. 
- Sound quality is very good by using this audio power amplifier module. 
- Applicable speaker impedance are 4, 6, 8ohm, great for turning normal speaker into Bluetooth speaker. 
- Automatically enter Bluetooth pairing mode when power on, the device name is "Xpecial Audio". 
Parameters:
- Audio Input: Bluetooth 
- Output Power: 2x30W 
- Suitable Speaker Impedance: 4ohm, 6ohm, 8ohm 
- Input Voltage: 8V~26V DC 
- Auxiliary Input: 3.5mm jack 
- Size: 71 x 52mm / 2.79 x 2.04" 
