Project Category:

Project Level:

Project Time:
20+ Hours

Project Cost:
$100 – $500

Project Description:
Updating the subwoofer for the small home theater system.

Design Goals:
Good bass for a small home theater with something other than the typical cube subwoofer in the corner.

Driver Selection:
Two Dayton Audio DSA215-8 woofers 295-530

Enclosure Design:
Two 8″ woofers in 1.2 cubic ft. ported enclosure tuned to 35Hz.

Rear firing woofers, down firing port.

Enclosure Assembly:
.75″ MDF, 10″ diameter Sonotube, 4″i.d. ABS tube, liquid nail, poly fill, primer, texture, paint.

Crossover Design:
LFE output from receiver and crossover in SA100.

Tips & Tricks:
cut Sonotube lengthwise and laminated together for added thickness and rigidity

Good bass, matches with room gain, great dynamic response. Aesthetically blends with room.

About the Designer:
Went to school for audio engineering 25+years ago. Still like to do projects when the opportunity arises.

Project Parts List:

Dayton Audio DSA215-8 8″ Designer Series Aluminum Cone Woofer
Dayton Audio SA100 100W Subwoofer Plate Amplifier
Penn-Elcom F1691 Rubber Cabinet Foot 1″ Dia. x 1″ H


Add yours
  1. 1

    After getting to dial this in a little more it’s really come to life. The room this is in is approximately 18 x 26 x 8 feet

    It fills in the lower frequencies without getting bass heavy or muddy, yet is still very dynamic and explosive when needed.

    Playing Bassgasm by Techmaster PEB this was skaking pictures on the wall in the stairwell.

  2. 2

    This reminds me somewhat of my 30 year old HSU SW10s.The Sonotube makes a great enclosure and the SAF (Spouse Acceptance Factor) was very high,since they make good lamp stands. But that’s not why I like them…they produce that “air shaking all around you” effect; that’s why I like them.

    • 4

      Adrian, thanks. I modeled and tuned the enclosure in WinISD. The finished sub is 34″h (w/feet) x 10.25″w x about 9.5″d (not counting connections to amp).

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