October 2002 Update

The technical info below is several years old. Most woofers now have butyl rubber surrounds and some have high tech laminated cone designs. Crossovers make more use of high grade mylar and film capacitors, and in some cases improved winding methods for inductors. Some of the cabinets in the photos are more than 10 years old. Many are made with MDF but some are made with high density particle board. New cabinets use MDF and have 1" or more thickness in the front panel where drivers are mounted. MDF is very much more dense than any particle board. MDF is made with fibers instead of chips, it has much more glue and made with higher pressure resulting in 3/4" sheets that weigh 100 pounds. The result is a more solid cabinet that delivers more accurate sound and deep tight bass.

New work to be done includes computer aided crossover design and cabinet design. In addtion, testing driver parameters and speaker performance will be researched. So far I have only built closed box acoustic suspension designs, but with good computer aided design capabilities I may look into ported designs also.

Today's audio has moved from "home stereo" to "home theater". New designs aimed at the home theater using Dolby Pro Logic and the newer Dolby Digital (aka AC-3 or 5.1) requires speaker designs with specific requirments for imaging and dispersion.



Model 1S $400/pair
Small Bookshelf Size
2-Way Satellites

x

Model 2 $675/pair
Bookshelf Size
3-Way Satellites

x

Model 3X $1300/pair
Floor Standing Tower
4-Way Dual 10"

x

Model SW12.1 $550
12" Stereo Subwoofer

x

Model SW12.2 $1025
Dual 12" Subwoofers

x

Model TH-Front $????
future design
home theater main
front left & right

x

Model TH-Center $????
future design
home theater center
front center channel

x


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