TDA7294 Sound Amplifier PCB Circuit Board 300W 2.1 Home Theater Audio System Power Amp
The product is a blank PCB. There are no components on the this circuit board.
PCB Features:
-2 Layer PCB
-Material:FR-4,
-Copper Thickness: 1oz
-PCB Surface Finish: HASL with lead
-Colour: Red
-Dimensions: 120.52 x 84.45 x 1.6 mm
Super quality PCB. Solder pads are corrosion resistant. Soldering quality is very important in audio and high-frequency circuits. Thanks to the quality lead finishing on the Pads on the PCB, the soldering process is high quality. PCB quality greatly increases the operating performance of such circuits.
*This is 2.1 amplifier that have 3 channel output there is Subwoofer Out, Front left out and Front right out.
*The output stage uses 4X TDA7294 IC, it can give total power about 290-300W before clipp @8 ohm load (2x70Watt on the front/satelite output and 150Watt on the Subwoofer out)
*This amplifier has some feature like : Volume controll for the stereo front channel, a separated volume controll for the subwoofer channel, and a trimpot to change the subwoofer frequency.
*This amplifier very easy to build because it simple design and using components that are widely available in the market, and also cheap.
*This amplifier need 24-0-24/ 5-10A symmetrical transformer.
You can access installation of the circuit, bill of materials, schematic and all the technical details in the video.
Video:
youtube.com/watch?v=49sBqq1s0JY
![](https://ae01.alicdn.com/kf/U1795085fb87141d991c11c55cea563f9J.jpeg)