TDA7492P Bluetooth Digital Amplifier Board Dual Channel 2 * 25W High Power Bluetooth Amplifier AUX Interface

Product Parameters

Power supply voltage: 2.1 interface DC7-26V (with power reverse protection)

Bluetooth version: V4.0

Bluetooth name: HW-BT893

Output channel: Dual channel stereo

Output power: 2 * 30W

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

The dip switch can adjust the gain of the amplifier in the rear stage, which better drives speakers with higher resistance values

Product Overview

This product is a Bluetooth dual channel amplifier board with TDA7492P amplifier chip onboard. Equipped with AUX audio input interface. The dip switch can adjust the gain of the amplifier in the rear stage, which better drives speakers with higher resistance values

Product Functions

(1) Connect the speaker or loudspeaker to the output channel first

(2) Bluetooth playback mode

After powering on, you can hear a beep like sound, the blue indicator light of the BT tag flashes, and wait for Bluetooth connection. The phone opens Bluetooth and searches for a device named "HW-BT893", then clicks on pairing. After a successful connection, you will hear a beep like sound, and the blue indicator light of the BT tag will remain on, indicating that music can be played normally.

(3) AUX playback mode

Connect the 3.5mm audio input port of the amplifier board to the 3.5mm headphone jack of a computer or mobile phone through an AUX cable. After powering on, you can hear a prompt sound of "LNEIN", and the red indicator light of the AUX tag changes from constantly on to flashing. Click to play music on your computer or phone. When playing music, the AUX indicator light continues to flash.

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Standard packaging

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