Mini Subwoofer

Mini Subwoofer


Project Category:

Project Level:

Project Time:
1-8 Hours

Project Cost:
$100 – $500

Project Description:
Paul Carmody Voxel Subwoofer inspired design. I was looking for a passive subwoofer to add to my 2.1 amplifier (Dayton Audio DTA-2.1BT 100W Class D 2.1 Amplifier with Bluetooth and Power Supply) setup. After purchasing a poor quality powered speaker from another online retailer I figured I would try my hand at building my own subwoofer to add to the 2.1 amp plus Dayton Audio MK402 4″ 2-Way Bookshelf Speaker Pair.

Design Goals:
Redesigned retaining the 7 liter enclosure with the port on the same face as the woofer.

Enclosure Design:
3/4″ plywood. 10.5″ H x 7.5″ W x 9.5″ D

Tips & Tricks:
I still want to try adding poly fill to see what affect it will make.

This design delivers great bass. Reproduces bass guitar rather well for listening to music.

I am new to the technical details of speaker building but I am interested in learning more.

About the Designer:
This is my first attempt at building speakers. More of a woodworking challenge as I based the design and hardware on an existing design.

Project Parts List:

Tang Band W5-1138SMF 5-1/4″ Paper Cone Subwoofer Speaker
Speaker Cabinet Port Tube 1-1/2″ ID x 4″ L Flared
Dayton Audio BPA-38G HD Binding Post Pair Gold

1 comment

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  1. 1

    Welcome to the fun hobby! Nice looking built.
    However this is for very, very low volume application only.
    The 7 L enclosure is way too small for this Tang Band. Even at low volume the air velocity is greater than the size of the enclosure and the size of the port can handle. You get chuffing and distortion. Listen to the sub without main speakers and you will hear it immediately! Optimally this sub requires 14 L enclosure with 2″ diameter x 14″ long port with flared ends. The flared ends are a must to further reduce chuffing and port noise!!! It will go down to 30 Hz and can handle some power – however you have to remember it is still a 5″ driver…:)

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