Introduction: Bluetooth Speaker Boombox

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Hey friends,

In this instructable, I will clearly explain to you how to create a multimedia Bluetooth boombox speaker at home.

This boombox is created using PVC pipe and parts basically. All other electronic parts are mostly salvaged from my electronic junk collection.

Let's have fun with this amazing project!

Supplies

You will need..

01- PVC Pipe 4"x4'

02- Two end caps 4"

03- Two 3" or 4" Speaker drivers

04- Amplifier circuit

05- MP3 Bluetooth module

06- Salvaged battery pack from old laptop

07- BMS 3S 10A module

08- Switching mode power supply (SMPS)

09- Two volume controls

10- Black Rexine

11- Glue

12-Power switch

13- Audio input base

14- 2pin AC power socket

15- 2pin AC cable

16- Belt salvaged from traveling bag

17- Some salvaged plastic plates

18- Nuts and bolts

Tools & Equipments

01-Cutter

02-Soldering iron

03- Screwdrivers

04- CNC router (optional)

05- Hacksaw

06- Sandpapers

07- Heat gun or gas stove

08- Two unused tiles

Step 1: Prepare PVC Pipe

Cut the 4" PVC pipe at 4 feets

Cut middle control panel at 4" from each side.

*Please watch the video for a clear demonstration

Step 2: Preparing PVC Plates

  • Heat PVC parts using a heat gun or gas stove
  • Flatten them by applying pressure between two tiles
  • Mark control panel parts and cut

Step 3: Glue Front Panel

  • Glue front panel plates
  • Mark cutting points for controls

Please refer to the video

Step 4: Cut Two End Caps

  • Mark end caps line and cut off the excess parts

Step 5: Cut Air Holes of Speaker Mounts

  • Use a CNC router or a manual method to cut two end caps design
  • Cut passive radiator diaphragm

Step 6: Mount Speakers

  • Solder speaker wires, and mount speaker on speaker brackets prepared
  • Apply covering brackets

Step 7: Prepare Electronics

  • Prepare amplifier circuit
  • Disassemble salvaged battery pack
  • Connect batteries to BMS module
  • Solder volume controls

Step 8: Cover the PVC Casing

  • Cover the PVC casing using the black rexine.
  • Use glue and a heat gun to get the shape

Step 9: Preparing the Passive Radiator

  • Cut off the magnet of the old speaker
  • Cut the diaphragm
  • Glue diaphragm to speaker

Step 10: Prepare the Front Control Panel

  • Use CAD software and CNC to design the front panel and cut. You can also manually cut the panel.
  • Attach the Bluetooth USB module to the front panel

Step 11: Mount Belt and End Caps

  • Cut belt mounts using CNC, and mount the belt.
  • Mount all parts inside, and close with speaker end caps

*Please refer to the full video instruction

Step 12: Done!

  • Enable Bluetooth on your mobile phone
  • Connect to the device
  • Play & Enjoy!

Hope this project is useful to you friends. Please leave your comments regarding the project, so It's a big help to me to improve future DIY projects. Please watch the complete video of this DIY project below.

Thank you very much.