How I Built the 12" DIY Hammer Subwoofer Box from GSG Audio & Home Theater Gurus - YouTube
HiVi SP10 DIY Subwoofer Project
DIY Loudspeaker Project Pad | Facebook
Audiopulse 12″ EPIC Subwoofer Project Showcase | blog for whoever
DIY Bluetooth Speaker With Subwoofer (An Upcycle Project) | This DIY Life
Sealed Box Subwoofer Cabinet Build: A little weekend project from earlier in the month... The sound is great; very fast with a nice tight bass extension for the surround system. Notes on
DIY subwoofer amplifier
DIY Wood Side Table / Subwoofer Enclosure - Jenna Sue Design
Audioholics Reviews their first DIY Subwoofer, the CSS SDX12 Sealed Kit! | Audioholics Home Theater Forums
Completed my first DIY audio project : r/diyaudio
DIY Bluetooth Speaker With Subwoofer (An Upcycle Project) | This DIY Life