Homemade Rugged 50W 19V LiFePO4-Powered Portable Speaker Cabinet

This is an incredible build by YouTuber BrendaEM. Even if you don’t watch the entire explanation of the electronics and circuits encased inside the cabinet, the first few minutes are a joy to hear BrendaEM describe the amount of parts upcyclced to assemble this thing. From an oscilloscope knob to reclaimed whiteboard and plywood from a nearby community center, to the speakers themselves (otherwise left on a friend’s porch for two years!). This shows what is possible with all those spare parts you have laying around – set yourself a goal and get makin’! And if you do stick around to watch the entire video which includes an explanation of the back panel electronics you will likely pick up a few pointers and tips should you want to build something similar yourself!

This is a look at my homemade 50 Watt (25-Watt by 2-channel) guitar amplifier. It is LiFePO5 battery-powered. It runs for hours at levels loud enough to overcome traffic noise, and then some.

Many of the amplifier case parts were reused materials. The amp has given 2 years of harsh service.

Warning: you should only attempt building such an amplifier if you have good electrical/electronics practices, are quite familiar with lithium-based (LiFePO2) rechargeable battery safety, and have used the right battery for the right application, use a battery manager, have installed fuse(es), and provide for proper cooling. If you build such and amplifier, you do so at your own risk.

Adafruit publishes a wide range of writing and video content, including interviews and reporting on the maker market and the wider technology world. Our standards page is intended as a guide to best practices that Adafruit uses, as well as an outline of the ethical standards Adafruit aspires to. While Adafruit is not an independent journalistic institution, Adafruit strives to be a fair, informative, and positive voice within the community – check it out here: adafruit.com/editorialstandards

Join Adafruit on Mastodon

Adafruit is on Mastodon, join in! adafruit.com/mastodon

Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.

Have an amazing project to share? The Electronics Show and Tell is every Wednesday at 7pm ET! To join, head over to YouTube and check out the show’s live chat – we’ll post the link there.

Join us every Wednesday night at 8pm ET for Ask an Engineer!

Join over 36,000+ makers on Adafruit’s Discord channels and be part of the community! http://adafru.it/discord

CircuitPython – The easiest way to program microcontrollers – CircuitPython.org

Maker Business — “Packaging” chips in the US

Wearables — Enclosures help fight body humidity in costumes

Electronics — Transformers: More than meets the eye!

Python for Microcontrollers — Python on Microcontrollers Newsletter: Silicon Labs introduces CircuitPython support, and more! #CircuitPython #Python #micropython @ThePSF @Raspberry_Pi

Adafruit IoT Monthly — Guardian Robot, Weather-wise Umbrella Stand, and more!

Microsoft MakeCode — MakeCode Thank You!

EYE on NPI — Maxim’s Himalaya uSLIC Step-Down Power Module #EyeOnNPI @maximintegrated @digikey

New Products – Adafruit Industries – Makers, hackers, artists, designers and engineers! — #NewProds 7/19/23 Feat. Adafruit Matrix Portal S3 CircuitPython Powered Internet Display!

Get the only spam-free daily newsletter about wearables, running a "maker business", electronic tips and more! Subscribe at AdafruitDaily.com !

No Comments

No comments yet.

Sorry, the comment form is closed at this time.