Introduction: How to Make a 3D Printed Speaker Using PAM8403 Amplifier
In this post, I will share how I created a 3D-printed speaker with a PAM8403 Amplifier. To see the build you can watch the video attached or continue reading for the details
Supplies
Here are the parts used in this project
PAM8403 Amplifier
- Amazon USA - https://amzn.to/31Oazgp (https://amzn.to/3oygwaR)
- Amazon IND - https://amzn.to/3oAwuRN (https://amzn.to/3jBcJpB)
4Ohm 3 Watt Speaker
- Amazon USA - https://amzn.to/2TvCLQB
- Amazon IND - https://amzn.to/3oCHkHk
Creality Ender 3 3D Printer
- Amazon USA - https://amzn.to/37b28ix
- Amazon IND - https://amzn.to/31tqWyX
Soldering Station
- Amazon USA - https://amzn.to/3k4PZ2u
- Amazon IND - https://amzn.to/3k4ybo6
PLA 1.75mm Filament
- Amazon USA - https://amzn.to/354ccXX
- Amazon IND - https://amzn.to/34YsiCy
Hot Glue Gun
- Amazon USA - https://amzn.to/3lL8gCe
- Amazon IND - https://amzn.to/3dujCb3
Step 1:
First I designed the speaker enclosure using the Freecad software and then printed it with my Ender 3 3D printer.
Please find the attached STL file of the enclosure (only use it as a reference).
Step 2:
Next mount two 3.5mm stereo jacks. The first jack is used for Audio input and the second jack is used to connect the second speaker
Step 3:
Next, add a DC jack to power the amplifier with 5volt
Step 4:
Next, mount the 4ohm 3-watt speaker and secure it with hot glue
Step 5:
Next, connect the pins of the DC jack to the 5V pins of the amplifier
Step 6:
Next, connect the pins of one of the 3.5mm audio jacks to the audio input pins on the amplifier
Step 7:
Next, connect the speaker to the left out on the amplifier
Step 8:
Next, connect the Right out of the amplifier to the free 3.5mm jack
Step 9:
Next, close the enclosure and connect the two speakers with a 3.5mm audio cable and then supply it with 5V.

Participated in the
Audio Challenge
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