bluetooth amplifier board ceiling speaker DIY bluetooth module power amplifier mode

This bluetooth power amplifier board product is suitable for the modification and upgrade of wall-mounted speakers, ceiling speakers, ceiling speakers and other engineering speaker products.

The product has the characteristics of simple power supply, convenient wiring, extremely low noise, nsparent mid and high frequency, clear human voice, sufficient power, and wide sound field.

The Bluetooth versions are all BT5.0 versions, and the acceptance distance is about 15 meters.

~~~~~~~~~~High power version~~~~~~~~~~

. two- output;

·Maximum output power 2×40W@4Ω;

. DC9V~24V power supply;

[Three conventional adapters of DC12V DC15V DC24V are available]

The minimum acce impedance of the speaker is 4Ω;

·Bluetooth audio source and AUX audio source can only be selected for output;

· The default is Bluetooth mode when power on;

· If bluetooth is connected, it will remain in bluetooth state regardle of whether there is input on the AUX line;

If the Bluetooth is not connected, the AUX cable is plued in and there is audio playing, the amplifier

Automatically play AUX sources.

·Bluetooth connection paword: 6688;

· No automatic mute function;

... M4 fixing holes × 2, M4 spacing guide holes × 2;

~~~~~~~~~~small power version~~~~~~~~~~

low power version

12V adapter can be connected

Ceiling audio amplifier board:

2*15W@4Ω(MAX)

Power supply range: DC12V·3A

DC15V·3A

5th Generation Bluetooth

Bluetooth indicator

AUX line input