Dual-Stereo Speakers (additional guide)

Hey everyone, I've FINALLY finished the additional tips-and-tricks guide to go along with my dual-stereo speaker project. In it you can find full details of the crossover & smoothing circuitry, dimensions and cutouts (CNC files and also a square version that's easier to build), and extra info about some cool bluetooth receiver boards that work as a stereo pair if you don't want to go with ear buds. Enjoy!