Dual Channel Bluetooth 4.2 Audio Amplifier Board for DIY Speakers and Electronic Projects

Discover our high-performance digital amplifier board, designed to transform your audio experience. At the heart of this module is the Texas Instruments TPA3116D2 digital amplifier chip, guaranteeing clear and powerful sound. Operating on a single 12V to 24V DC power supply, this board delivers a stereo output (2 channels) of up to 50W per channel, depending on your setup. It features a convenient Bluetooth 4.2 receiver with a range of over 8 meters, allowing you to easily stream music wirelessly from your smartphone, tablet, or computer. An external audio input connector is also included for wired sources. You have complete control over the sound thanks to dedicated potentiometers for adjusting bass, midrange, and treble, as well as a master volume control and a function switch. Designed with up to 90% energy efficiency, this amplifier board is energy-saving. You can power it using a high-quality switching power supply (like those for laptops), a rechargeable battery, or even a 12V car power supply. Ready to use, this board comes pre-soldered and tested. To use it, simply connect your speakers (recommended impedance between 4 and 8 ohms), plug in the appropriate power supply, and pair your Bluetooth device or connect an audio source via the auxiliary input. By default, the module is in Bluetooth mode, waiting for a connection. If no Bluetooth connection is active, a simple press of the volume potentiometer button switches to linear source input mode.

**Product Details:**

* **Item Type:** Digital Amplifier Board

* **Material:** PCB

* **Operating Voltage:** DC 12-24V

* **Bluetooth Version:** 4.2

* **Bluetooth Reception Distance:** > 8m

* **Audio Source Input Sensitivity:** 600-800mV

* **Frequency Range:** 20Hz-20KHz

* **Recommended Speaker Impedance:** 4-8Ω

* **Output Power (Approximate):**

* Power Supply 12V, 8Ω speakers: > 10W x 2

* 12V power supply, 4Ω speakers: > 15W x 2

* 21V power supply, 8Ω speakers: > 30W x 2

* 21V power supply, 4Ω speakers: ≈ 50W x 2

* 24V power supply, 8Ω speakers: > 35W x 2

* 24V power supply, 4Ω speakers: > 60W x 2

**Package Contents:**

* 1 x Digital Amplifier Board

* 4 x Nuts

* 4 x Standoffs (studs)

* 4 x Washers