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2.1 Amplifier TDA7379/ TDA7377 IC 0-12V


1. 1×TDA7379/ 7377 IC.
2. 1×NE5532/ 4558D/ TL072 IC.
3. 3×10kΩ resistor 1/4W.
4. 2×47kΩ resistor 1/4W.
5. 2×200kΩ resistor 1/4W.
6. 2×2.2kΩ resistor 1/4W.
7. 1×100kΩ resistor 1/4W.
8. 1×68kΩ resistor 1/4W.
9. 1×150kΩ resistor 1/4W.
10. 1×680Ω resistor 1/4W.
11. 4×0.1uF (104) capacitor 50V.
12. 1×470pF (471) capacitor 50V.
13. 1×0.047uF (473) capacitor 50V.
14. 1×330pF (331) capacitor 50V.
15. 1×0.001uF (102) capacitor 50V.
16. 2×0.0022uF (222) capacitor 50V.
17. 1×0.47uF (474) capacitor 50V.
18. 2×10uF capacitor 25/ 50V.
19. 1×2.2uF capacitor 25/ 50V.
20. 1×1uF capacitor 25/ 50V.
21. 1×4.7uF capacitor 25/ 50V.
22. 3×47uF capacitor 25/ 50V.
23. 1×Preset 100k.
24. 1×2 pin connecter base 2.54 mm.
25. 1×3 pin connecter base 2.54 mm.
26. 1×Bridge rectifier GBU808/ GBU1508.
27. 1×7812 +V Regulator.
28. 1×7805 +V Regulator.
29. 1×2 Pin Screw terminal.
30. 2×2200uF capacitor 25V.
31. 1×4700uF capacitor 25V.
32. 1×Dual turn potentiometer 100k.
33. 1×single turn potentiometer 100k.

License:- ©Technical Mriganka. You can't use this PCB Layout and Gerber File for commercial purpose. You can use this PCB layout and Gerber file only for Educational and DIY projects.

Lets Build This Amplifier

Hello guys, in this post I make 2.1 amplifier, which can deliver up to 38 watt output for subwoofer and 13+13 Watt for output speakers at 4Ω. For this amplifier I use TDA7379 IC but you can use TDA7377 IC instead of Tda7379 IC. This IC mostly use for high-end tv and hi-fi amplifiers. This is a class AB amplifier and have in-built output short circuit protection which is perfectly tuned for home use. I designed this PCB based on this IC, for make this amplifier you can download the required files. For designing my PCB, I used Easy Eda online software. Then I export the Gerber file (which you can download). And then I go to for manufacturing my PCB. PCBWay are the largest PCB manufacturer in China. They offer Standard PCB, Advanced PCB, Rigid-Flex PCB, SMD-Stencil and PCB Assembly Service. Here you get, 100x100mm 2 Layer PCB only at $5, And processing time within 24 hour. And they distribute, worldwide. The more you order, the less price you have to pay.

You just need to upload the Gerber File, and select the quantity, color, silkscreen, thickness etc. Then select your country, and shipping method and then Pay. PCBWay will deliver your PCB within 7-10 days.

After one week I have received my PCB. You can see the PCB quality, it's awesome. I have ordered White PCB. But you can choose your PCB color. PCBWay provide total 9 color solder mask - Green, Blue, Red, Purple, Black, White, Yellow, Matte Black and Matte Green. On PCBWay you can get 100x100mm 2 Layer PCB only at $5. Maximum size PCB you can get 500x1100mm. And maximum Layer is up to 14 Layers. And If you order PCB first time at PCBWay, then you get a $5 discount coupon. So upload your Gerber today and get best quality PCB.

Testing Method After Complete This Amplifier

Series light test:- After complete this board don't forget to series light test. When you will on this amplifier via series light, it glow for some time (1 - 2 sec). Then series light will turned off fully. If the series light will fully turned off, then check the voltages.

Check Voltages:- Check Speaker Output and Audio Input voltage. Here you get no voltages 0.00V. If you get same voltages, then connect preamplifier to input and connect speaker to output.

Power Supply:- For get best performance of this amplifier, you use 0-12V 5A-6A Transformer or 12V Battery. (Don't increase voltage).

Post a Comment


  1. I had sent the gerber file to the factory and it is now manufacturing the PCB. I forgot to ask if there is any error in the PCB? Thank you.:)