It’s not just volume – it’s engineering; if something has Bluetooth, you find a Bluetooth module with a built-in microcontroller so you can write firmware to it.

DIY Bluetooth speaker projects are always a staple here at Hackady. In our latest feature of DIY audio builds, we have [Patrick’s] vinyl cylindrical speaker. He found a pretty inexpensive Blu… ...

Once you get everything—your speakers, your tools, and of course, the Bluetooth module for the whole affair, it’s all about cutting the holes in the side of the ammo can, mounting the amp and ...