Gone Natural

Gone Natural


Project Category:
Portable Speakers

Project Level:

Project Time:
8-20 Hours

Project Cost:
$100 – $500

Project Description:
Portable Bluetooth sound system

Design Goals:
A system that can provide background music for weddings, camping trips, and other outings.

Driver Selection:
Tang Band W3-881SJF 3″ Full Range Speaker

Enclosure Design:
Ported design, .05 cu ft., tuned to 95 hz
Cabinet is constructed with 1/4″ and 1/2″ poplar. Front control panel is Honduran rosewood. Rear access panel allows access to amp and battery components.

Enclosure Assembly:
Panels glued and clamped.

Crossover Design:
Single driver

Tips & Tricks:
Pay attention to powering up the amp with the batteries for the first time. I suggest purchase of the 19 v AC adapter to “initialize” the amp and battery card. Parts Express will answer any technical questions you about this procedure.

Very pleased with the outcome. Very smooth sound across the frequency range. All parts were purchased from Parts Express, with th exception of wood for the cabinet.

About the Designer:
IT professional by trade, however I love these types of projects, am an audiophile at heart. Have built many speakers, over the last 45 years.

Project Parts List:

Tang Band W3-881SJF 3″ Full Range Speaker
Dayton Audio KAB-215 2x15W Class D Audio Amplifier Board with Bluetooth 2.1
Dayton Audio KAB-FC Function Cables Package for Bluetooth Amplifier Boards
Dayton Audio KAB-LED Red/Green/Blue LED Package for Bluetooth Amplifier Boards
Dayton Audio KAB-BE 18650 Battery Extension Board for Bluetooth Amplifier Boards
18650 2600mAh Li-Ion Flat Top Battery 3-Pack

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