Marvel Battery Powered Bluetooth speaker

Marvel Battery Powered Bluetooth speaker

John A Nelson

Project Category:
Portable Speakers

Project Level:

Project Time:
8-20 Hours

Project Cost:
Under $100

Project Description:
Custom designed Bluetooth speaker using the #300-7304 Bluetooth kit with an additional battery backup and the KAB-PMV3 panel mount. Found some awesome Marvel Cricut paper, and custom decorated the speaker.

Design Goals:
Build a cool, fun and portable Bluetooth speaker for my Marvel obsessed 13 year old. She loves the finished product, and while I am just a beginner, I think it turned out OK!

Enclosure Design:
Simple plywood box made this design easy and simple. I used 1/2 inch plywood that I had left over from another project.

Enclosure Assembly:
Ported the enclosure to improve bass response, 1″ tube cut to about 3″ deep.

Crossover Design:
Not required because I used full range drivers

Tips & Tricks:
I used modpodge to “set” the paper in place on the box It was sort of like working with wallpaper, so it was pretty messy and easy to mess up, so be careful! After the paper was in place, I added another coat of modpodge to the paper, coating the whole thing. Then, after a week I coated the whole thing with two coats of clear sealer designed to work with the modpodge to give it some durability.

The overall build was pretty simple, using the full range driver and the KAB board really made the development easy and straightforward. Box constructed from some scrap 1/2 in plywood I had from a previous project.

About the Designer:
Hobbyist woodworker and tinkerer from New Jersey. My basement shop is my happy place.

Project Parts List:

4″ Wire Mesh Grill with Gold Trim for Up To 3″ Speaker
Dayton Audio KAB-PMV3 Panel Mount for KAB-v3 Boards with Function, LED, and Install Kit
30 Watt Powered Bluetooth Speaker Package with 2-1/2″ Full-Range Drivers
Dayton Audio KAB-BE 18650 Battery Extension Board for Bluetooth Amplifier Boards
18650 2600mAh Li-Ion Flat Top Battery 3-Pack
Speaker Cabinet Port Tube 1″ ID x 4″ L Flared

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