Usher TMM

Designer: karrtoons

Project Time: 1-8 hours
Project Complexity: Hobbyist
Project Cost: $100-$500

I was looking to build a speaker that utilized both the dayton rs28f tweeter and the usher 8945p woofer given their value and zaph’s test results. After looking at usher’s Dancer series I wanted to make my own “dancer” speakers (or get reasonably close). Fortunately, Jay Kim had the design I was looking for and he got me started with my first speaker project. I made many, many rookie mistakes along the way but alas have finally finished up these white bruits after a year of scattered construction. These sound better than they look! I’ve been playing everything from pink floyd to royksopp to bela fleck and it just blows away every speaker I’ve owned. A perfect match to the quality of the rest of my components; lm3886 paralleled amplifier and buffalo II DAC.

Driver Selection
usher 8945p and dayton rs28f-4

Enclosure Design
This 42 Liter ported speaker has a 1.5″ baffle, .75″ walls, and is well braced and dampened. I decided to use recycled denim to cover the walls and dampen the lower portion with partsexpress polyfill. The knock test is… ‘veery nice’. *the denim has a higher sound absorption coefficient than fiberglass and is very safe to use

Enclosure Assembly
This was my biggest challenge because I had no wood working experience prior to the project.

About The Designer
a young lad studying to become an engineer.

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