Waldorf High Schools like Michael Oak Waldorf School tuition covers all the requirements of the SA Schools syllabus, but also offers a richer depth of learning.
The subwoofer featured in this article, was part of my son's Class 12 project at Constantia Waldorf School for that year.
Michael Oak did not have a high school at the time.
Brief summary of the design strategy:
I worked for Prosound in Johannesburg during the '80s and early '90s, running an R&D department that was tasked to produce assembly-line-style professional sound equipment on demand.
For example, we had less than 2 weeks to prepare and deliver everything that was required for Paul Simon concerts.
Ad Valorem taxation applied to the components we stocked.
It's basically a disincentive to produce certain commodity items locally, such as:
"Motor Vehicles, Electronic Equipment, Cosmetics, Perfumeries and other products generally regarded as “luxury items” ".
Armed with my EV equipment, experience and familiarity with Thiele-Small speaker alignment based on Chebyshev filters, my son and I worked our way through the design process and ended up with what is presented below:
The Sub Woofer 13 years later (November 2021):
The Workshop (May 2008):
