High-Performance DIY Bluetooth Speaker

A robust, bolt-together Bluetooth speaker designed for maximum customization and great acoustics. This design features dual 3" subwoofers, dual 3/4" tweeters, and dual 3" passive radiators powered by the popular ZK-MT21 amplifier.

Features

• Bolt-Together Assembly: No fragile plastic clips. Designed with robust M3 hardware connections. (Note: Only the 4 corner caps require glue).
• Two Handle Options: Includes a solid bolt-on handle and a customizable accent handle designed to wrap a strand of filament around for a unique "electrified" industrial look.
• STEP Files Included: Fully open for customization. Modify the mounting plates, adjust the footprint, or adapt it to your own hardware easily.

Bill of Materials (BOM)

Important Assembly Notes

• Tweeters: These are rear-mount only.
• Amplifier Fitment: The housing is specifically dimensioned for the linked MT21 board. Do not substitute unless the alternative share the exact same physical footprint.
• Alternate Drivers: You can swap the 3" main drivers with any speaker that fits the physical housing dimensions.
• Corner Caps: Require a small dab of super glue or hot glue to secure.

License & Terms

• Personal Use Only: Commercial distribution or sale of this model (digital or physical) is strictly prohibited without my explicit permission.