DIY HiFi 200 Watt Audio Amplifier

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

Input Power

• 100-240V AC

Output Power

• 100 Watt x 2 @ 2Ohms

Built-in Protection

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

LCSC

• 10K Potentiometer - http://bit.ly/346Secx
• Stand-Off - http://bit.ly/2PpsxyI

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Banggood

• TDA3116D2 Amplifier - https://bit.ly/2PTgM6F
• 24v SMPS - https://bit.ly/2PTgM6F
• Aluminium Encloser - https://bit.ly/2PTgM6F
• AC Socket with Switch - https://bit.ly/2PTgM6F
• Speakon Connector Female - https://bit.ly/2PTgM6F
• Speakon Connector Male - https://bit.ly/2PTgM6F
• 3.5 mm Female Socket
• 10K Potentiometer
• LED with led socket
• Rubber Feet - https://bit.ly/2PTgM6F
• Soldering Iron - https://bit.ly/2PTgM6F
• Drill Bit - https://bit.ly/2PTgM6F
• Heat Shrink Tube - https://bit.ly/2PTgM6F
• PCB Stand-Off - https://bit.ly/2PTgM6F
• Hole Punch Center - https://bit.ly/2PTgM6F

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Amazon

• TDA3116D2 Amplifier - https://amzn.to/2S9D94w
• 24v SMPS - https://amzn.to/2S9D94w
• Aluminium Encloser - https://amzn.to/2S9D94w
• AC Socket with Switch - https://amzn.to/2S9D94w
• Speakon Connector Female - https://amzn.to/2S9D94w
• Speakon Connector Male - https://amzn.to/2S9D94w
• 3.5 mm Female Socket - https://amzn.to/2S9D94w
• 10K Potentiometer - https://amzn.to/2S9D94w
• LED with led socket - https://amzn.to/2S9D94w
• Rubber Feet - https://amzn.to/2S9D94w
• Soldering Iron - https://amzn.to/2S9D94w
• Drill Bit - https://amzn.to/2S9D94w
• Heat Shrink Tube - https://amzn.to/2S9D94w
• PCB Stand-Off - https://amzn.to/2S9D94w

Aliexpress

• TDA3116D2 Amplifier - http://bit.ly/2zq2y33
• 24v SMPS - http://bit.ly/2zq2y33
• Aluminium Encloser - http://bit.ly/2zq2y33
• AC Socket with Switch - http://bit.ly/2zq2y33
• Speakon Connector Female - http://bit.ly/2zq2y33
• Speakon Connector Male - http://bit.ly/2zq2y33
• 3.5 mm Female Socket - http://bit.ly/2zq2y33
• 10K Potentiometer - http://bit.ly/2zq2y33
• LED with led socket - http://bit.ly/2zq2y33
• Rubber Feet - http://bit.ly/2zq2y33
• Soldering Iron - http://bit.ly/2zq2y33
• Drill Bit - http://bit.ly/2zq2y33
• Heat Shrink Tube - http://bit.ly/2zq2y33
• PCB Stand-Off - http://bit.ly/2zq2y33

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Note - Please see the images for better understanding

• 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

• 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

• 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

• 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

• 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

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

• 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

• 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

• 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

• 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

You Just Made It

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