2.1 Home Theater Class AB Sound Amplifier PCB Circuit Board with Transistors 250W Power Amp 2SC5200 2SA1943 DIY
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: Blue
-Dimensions: 176.28 x 80.14 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 transistor pair of 2SC5200 and 2SA1943 in a class AB amplifier, it can give power about 85W before clipp @4 ohm load / channel or about 256W total power.
*This amplifier has some feature like : midbass control, treble controll, and volume controll for the stereo front channel, and a separated volume controll for the subwoofer channel.
*The preamp power supply powered from the main amplifier that regulated with 12 volt ic-based regulator like L7812 and L7912 to make constant voltage.
*This amplifier need 24-0-24/10A 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=5gTrVEh9C9k