Mini Earthquake - an 8" cube of BASS - Free Plans - YouTube
Finished my DIY 12" active subwoofer : r/diysound
Collo's DIY Subwoofer Tools
DIY sub with 60" woofer - Speakerplans.com Forums - Page 1
Homemade speakers for student life. Dayton Audio 6.5 inch sub in sealed box, with Micro C L/R. Made in recycled teak finished in teak oil, and 3D printed PETG front grills held