3pcs TDA7492P 25W+25W Wireless Bluetooth 4.0 Audio Receiver Digital Amplifier Board
The sound quality is very good, big power.
DIP switches can be adjusted directly after the amp gain more respect and better promote greater damping horn.
Power: 2.1 interface 8-25V DC power supply
Audio input: CSR8635 Bluetooth chip, Bluetooth V4.0(stereo input various versions of the bluetooth connection)
Output Impedance: 8Ω(Best), 4/6/8/16Ω impedance can drive speakers
Output Power: Add pre-5532 output foot (powered 25V,6Ω impedance output 25W+25W, 8Ω impedance output 2x40W dual-channel)
3 x TDA7492P Bluetooth 4.0 Audio Receiver Amplifier Board