Amazon.com: CYOEST DIY Bluetooth Speaker Box Kit Electronic Sound Amplifier - Build Your Own Portable Wood Case Bluetooth Speaker Sound - Science Experiment and STEM Learning for Kids, Teens and Adults : Electronics
Audioholics Reviews their first DIY Subwoofer, the CSS SDX12 Sealed Kit! | Audioholics Home Theater Forums
GSG Audio Design - Elite Subwoofers
New to DIY audio. Any thoughts on this subwoofer? Seas L26ROY 10" Powered Subwoofer Kit : r/diysound