Product introduction

This product is a Bluetooth two-channel power amplifier board with TDA7492P power amplifier chip onboard. With AUX audio input interface.

Product parameters

Power supply voltage: 2.1 interface DC 7-26V (with power reverse connection protection)

Bluetooth version: V4.0

Bluetooth name: HW-BT893

Output channel: two-channel stereo

Output power: 2*30W

Output impedance: 8Q (can drive 4, 6, 8, 16Q impedance speakers)

Instructions for use

(1) The output channel is connected to the horn or speaker first

(2) Bluetooth playback mode

After power on, you can hear a prompt sound similar to "beep", the blue indicator of the BT number flashes, wait for the Bluetooth connection, turn on the Bluetooth of the mobile phone to search for the device named "HW-BT893", and click pairing. After successful connection, you will hear a beep like "beep", at this time the blue indicator of the BT tag is always on, and the music can be played normally.

(3) AUX playback mode

Connect the 3.5mm audio input interface of the power amplifier board to the 3.5mm headphone interface of the computer or mobile phone through the AUX cable. After power-on, you can hear a "LINE IN" prompt, and the red indicator of the AUX tag changes from steady on to flashing. Click to play the music on the computer or mobile phone. When playing music, the indicator light of the AUX tag continues to flash.

DC power supply

When using, you should first connect the speaker or speaker of the output channel, and then power on the operation.