Introduction: HI-FI 4 Channel Audio Amplifier VERY Simple and CHEAP!!!!

About: Hello I am Tech Creator Akshay I love electronics and get in touch for more projects

It's Time to Make Some nice amplifier which has nice audio quality with very low distortion and simple and quite easy to make because a circuit is very simple & very few components are required and all the pieces of stuff are easily available .

Hello, Guys, this is my fourth instructable and my previous experiences were great because of you all . And now I came with an amazing 4 channel audio amp Which sounds great .

Now without wasting more time I am going to tell you how to make one in very few steps !!!

Note:- Don't forget to Vote for my instructable thanks is advance

Step 1: Gather Components

First youn need to gather all the parts required for the circuit . You can buy all the components from your local elctronics shop or you can purchase complete circuit components online from here if you are from India .

  • TDA7388 IC (You can buy these in under 3$ from ebay,aliexpress etc.) X 1 Pc.
  • 470uf /50volt electrolytic capacitor X 1Pc.
  • 47uf/50volt electrolytic capacitor X 1Pc.
  • .1uf ceramic capacitor code(104) X 5Pcs.
  • 1uf ceramic capacitor code(105) X 2Pcs.
  • .47uf ceramic capacitor code(474) X 1Pc.
  • 10K resistor X 1Pc.
  • 47Kresistor X 1Pc.

Step 2: Other Stuffs

You need more stuffs more than components for this build and it can be according to your build I am giving basic list of stuffs which I have used for my build

  • Enclosure X 1Pc.
  • Knob for potentiometer X 1 or 2 Pcs.
  • 4 Rca Female Jack X 4 Pcs.
  • Led with 1K resistor X 1 Pc.
  • Stereo Female audio Jack X 1 Pc.
  • DC Barrel power jack female X 1 Pc.
  • Heat Sink X 1 Pc.
  • Perfboard X 1 Pc.
  • Aux cable X 1 Pc.

And you also need come common stuffs like soldering iron ,file,cutter ,screwdriver ,drill etc.

Step 3: Schematic OF TDA7388 AMP

Schematic is quite simple and it has very few external components I have attached 2 Schematic actually both are same and this is same as given in its datasheet .

Step 4: Lets Start by Making Circuit

I have just attached some pictures of my build of circuit . And circuit takes very less space on PCB and Note one thing that you need to adjust legs of IC In order to align according to the holes of perf board and don`t forget to add a heatsink to your amp.

For Power supply, I`ve used my variable bench power supply to power this amp specification is 12 volt 5 amps. but you can use more powerful powers supply for getting more power and you also need much larger heatsink than mine actually it is loud enough even at 12v 3amps for a room and sound is really good .

Step 5: Test & Enclose Everything !!

After completion of circuit you can test circuit by powering it by power supply and attaching speaker temporarily to test and after this step you can Enclose everything in enclosure of your choice you can also use wood or 3D printer for this purpose to enhance its beauty .

Step 6: Final LOOK !!!!

Final loook of my amp after complete built .

Hope you all like it and feel free to ask anything or to give any suggestions . I really expect as many as possible Hits on I MADE IT BUTTON.



Circuits Contest 2016

Participated in the
Circuits Contest 2016

Amps and Speakers Contest 2016

Participated in the
Amps and Speakers Contest 2016