I recently completed a fun DIY project that I wanted to share with you all – building a waterproof Bluetooth speaker! The whole build was based around the Harbor Freight 2800 Apache Case, which is durable, waterproof, and the perfect size for this project. I used the following components, and I’ve included the links for anyone interested in trying this out.

Here’s what I used:

Speaker: https://amzn.to/47jS8ke
Power Jack: https://amzn.to/4ggiTtS
12v Socket: https://amzn.to/3zcO34K
Battery: https://amzn.to/4cZM4P9
Sound Mat: https://amzn.to/4cWBV5B
Power Pigtail: https://amzn.to/3ZfCcxu
Cable Organizer: https://amzn.to/4eciw1E
Silicone Sealant: https://amzn.to/4egmYMK
Velcro Strips: https://amzn.to/4dUYJE6
Amplifier (Amp): https://amzn.to/3AS7KPL
Wire Connectors: https://amzn.to/4eh1zDs
Power Button: https://amzn.to/3Xgnofl
Glue: https://amzn.to/3MBjnx7
Electrical Wire: https://amzn.to/4cYnhe4
Case (Harbor Freight 2800 Apache): https://www.harborfreight.com/2800-weatherproof-protective-case-medium-tan-58656.html

Build Process:

Prepping the Case: I used the Harbor Freight 2800 Apache Case as the foundation. It’s waterproof and rugged, which makes it perfect for outdoor use.
Speaker Installation: I cut holes into the case to mount the Speakers. They fit snugly and, combined with the silicone sealant, remain waterproof.
Power Setup: I wired up the Power Jack and 12v Socket to a Battery, which provides plenty of power for the amp and speakers. Everything is connected using Wire Connectors and Electrical Wire.
Soundproofing: I lined the inside of the case with Sound Mat to reduce vibration and improve the sound quality.
Finishing Touches: The Power Pigtail makes it easy to charge the battery without opening the case. I also added some Velcro and a Cable Organizer to keep everything tidy inside. The Power Button is mounted on the outside for easy access.
Securing Everything: After assembling the components, I used some Glue to reinforce connections and secure everything in place.

How it Performs:
I tested it in different environments, and the sound quality is great! The waterproof aspect works perfectly, and the battery life is solid for long days outdoors.

Bonus The amp I chose is linkable. I can have both speakers playing at the same time to create true left/right stereo sound.

Let me know if you’re thinking about trying a build like this, or if you have any questions! Would love to hear your feedback or see similar projects from you all.

Happy building,
Trey