XY-P40W Stereo Bluetooth Power Amplifier Board 12V/24V High Power Digital Amplifier

XY-P40W Stereo Bluetooth Power Amplifier Board 12V/24V High Power Digital Amplifier

Product Code: ML-2195
Availability: In Stock
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Product Description


Product Model:XY-P40W

Supply voltage:DC: 5~24V

Bluetooth version:5.0

Connect distance:15m(visible)

Output power(@1KHz)20W*2 @12V 4Ω

30W*2 @16V 4Ω

30W*2 @21V 8Ω

40W*2 @24V 8Ω

Speaker selected(30W~150W):4Ω(5~16V supply)

8Ω(5~24V supply)

Protection:Power reverse protection

Short circuit protection

Thermal protection


Power reverse protection

Short circuit protection

Thermal protection

Application circuit

Operation specification

Supply the module, the blue LED is on, and it goes into Bluetooth mode; Waiting for pairing after playing the audio tone; Turn on the phone Bluetooth, XY-P15Wwill be searched and displayed; Click the

XY-P15W,it will connect to the board. It connects successfully with an audio tone; After this, you can play the music. The power amplifier board will prepare for the next pairing with an audio tone When the Bluetooth is disconnected.


1.        Keep 2 meters away from the router to avoid WIFI interference

2.        8~24VDC is recommended; upper than 26V, it will be damaged.

3.        Driving 4 loads, the power supply must be under 12V; and driving 8 loads, the supply must be under 24V.

4.        The supply current must be 2A at least.

5.        If the module works upper 20W x 2, a cooling fin will be needed.

6.        The line connecting the speaker with the module should be within one meter.

7.        ESD protection, please release ESD on your hands before you contact the module.

8.        30W and upper power speakers are recommended.

Fault Check

1. Check the power supply if the LED is not bright.

2. If the LED is on, but Bluetooth device XY-P15Wis not searched, check if the router is in near, and keep away from the router.

3. The speaker tapped when power on.

1)   Check that the speaker load is so small that the current through the speaker is enough for chip goes into DC protection. Try to lower the supply and restart.

2)   Check that if the power supply is low that cannot drive the speaker. 2A power supply current is ok.

4. Floor noise in the speaker when playing

1)   Play another music to verify the noise is not related to the music itself.

2)   Replace the speaker to check If the noise is caused by the speaker itself.

3)   Replace the power supply to check If the noise is caused by unstable power.

5. It plays intermittently

1)    Check if the temperature of the board is high, and it goes into thermal protection.

2)    Check if the Bluetooth is unstable, adjust the angle between the connected device; And Check if a WIFI source is in the near.


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