DIY HiFi 200 Watt Audio Amplifier

Introduction: DIY HiFi 200 Watt Audio Amplifier

About: Hi my name is Steve and i'm a Creative and I got Technical skills i can build anything just stick to my account . I'm a YouTuber so you also can see my all videos here https://www.youtube.com/SteveWillsonKujur

Hey! everyone My name is Steve.

Today I’m Gonna show how I Build this Class D Audio Amplifier Using TDA3116D2 Board it Can deliver up to 100 watts each channel This amplifier uses 2 TDA3116D2 Chip each can do 100 watts @2 Ohms

Amplifier Type is Class D

Sound Quality is really impressive

For Test, I’m gonna use only 3” 30-watt speakers

You can easily drive 6”-8” inch drivers

Click Here to See The Video

Let's Start

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Step 1: Features

Input Power

  • 100-240V AC

Output Power

  • 100 Watt x 2 @ 2Ohms

Built-in Protection

  • Over Load Protection
  • Short Circuit Protection
  • Over Heat Protection

Step 2: Thing I've Used

LCSC

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Banggood

13% Off for Electronics Category coupon code: BGE13

Amazon

Aliexpress

Step 3: Sponsor

Today's Article is Sponsored by lcsc.com

They are the Largest Electronics Components Supplier From China Ready to Ship within 4 Hours and they ship World Wide

Step 4: Wiring Diagram

Note - Please see the images for better understanding

Step 5: Marking & Drilling

  • I Used a Philips Head Screw Driver to Open the Encloser
  • And Then I placed the SMPS and Amplifier one by one on top of the bottom part of the Encloser and used a Center Punch to Punch 4 Holes for SMPS and 2 holes for Amplifier

  • And then I used a 3mm Drill Bit to Drill the Punches


Note - Please see the images for better understanding

Step 6: Drilling Back Panel

  • For AC Input Socket I've traced the square on the back panel
  • And then used 4mm drill it to cover all the traces "See the Image"
  • And then used a Dremel tool to trim
  • And then used a bigger file to trim more
  • and then used a small file for finishing
  • For Audio Output I used a Female Speakon Socket So, I used a 3mm Drill Bit to drill the corresponding holes and then I used a Step Drill bit to enlarge the holes

Note - Please see the images for better understanding

Step 7: Drilling Front Panel

  • For Volume Controle I used a 10K Dual Gang Potentiometer So, I used a 3mm Drill Bit to drill the corresponding holes and then I used a Step Drill bit to enlarge the holes
  • For led and 3.5mm audio input socket I've used 4mm drill bit


Note - Please see the images for better understanding

Step 8: Assembling of Back Panel

  • First, I pressed the AC socket and it automatically locked in the place
  • And then I Installed Female Speakon Connector using 2 Screws
  • And then soldered wire according to the Wiring Diagram
  • And then used some heat shrink


Note - Please see the images for better understanding

Step 9: Assembling of Front Panel

  • First, I Installed the Potentiometer
  • And then installed the 3.5mm Audio input Socket " See the Image "
  • And then installed the Led Socket
  • And then soldered wire according to the Wiring Diagram


Note - Please see the images for better understanding

Step 10: Mounting for Amplifier

For mounting the amplifier I've made an L Bracket using aluminium and drilled 2 3mm hole

Note - Please see the images for better understanding

Step 11: Assembly

  • First, I Inserted the SMPS and then I've used 4 M3 Screws to tighten it up
  • And then I closed the Back panel and used 2 M3 Screws to tighten it up
  • And then I've screwed 2 wire along with 2 led wires
  • And then I closed the Front panel and used 2 M3 Screws to tighten it up
  • And Connected all the wire according to the wiring diagram
  • And then I've inserted the amplifier and then used 2 M3 Screws to tighten it up
  • and did the rest wiring


Note - Please see the images for better understanding

Step 12: Fuse

      • This AC socket comes with the Fuse box So, I've put a 2Amp fuse in it
      • Make sure to put the fuse otherwise, it will not work

      Note - Please see the images for better understanding

      Step 13: Final Assembly

      • I closed the Upper panel and used 4 M3 Screws to tighten it up
      • And then I've put the volume control knob
      • Lastly, I used 4 rubber pad


      Note - Please see the images for better understanding

      Step 14: Setup and Enjoy

      • Plugged the Power Cable
      • Plugged the Speakon Connector
      • Plugged the 3.5mm Audio Jack
      • Turned the Switch On
      • The Amplifier is Finished
      • Now Just play and Enjoy

      Click Here to See The Video

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