CSR4.0 bluetooth module, power amplifier chip using ST TDA7492P.
24 V power supply, power output range DC12-25 w + 25 w.
Bluetooth and power amplifier directly uses the finite difference method, dynamic, distortion is small, the noise is very low, no impact on the switch machine.
Full light touch button control, easy to use, with gain setting terminals,adapt to all kinds of bluetooth audio source.
With a microphone interface, can be an external microphone.
The board size: 5.8 X 6.8 X 1.5 cm(2.3×2.7×0.6inch)
Wide working voltage range: 9-26V DC
Frequency response range: 20 hz – 20 KHZ
Speaker impedance: left and right speakers: the 4-6-8-16
Maximum output power: 25W (left sound channel) + 25W (right sound channel)
1 x Audio Receiver Amplifier Board