Initially, Martin King offered his Mathcad worksheets for non-commercial use. However, due to high demand and administrative overhead, he eventually transitioned to a paid licensing model .
While King offered several tools, a few became foundational to the DIY community: martin j king mathcad worksheets
For years, these worksheets were available for a modest fee or via a subscription model on King’s website. They weren't just software; they came with extensive technical papers that served as a masterclass in acoustics. King’s ability to explain the "why" alongside the "how" is what built his massive following on forums like DIYAudio. Using the Worksheets Today Initially, Martin King offered his Mathcad worksheets for
Traditional loudspeaker design programs often rely purely on Thiele-Small (T/S) parameters optimized for simple sealed or ported enclosures. King recognized that standard lumped-element models break down when an enclosure's internal physical dimensions approach the wavelength of the frequencies being reproduced. They weren't just software; they came with extensive
You enter the standard Thiele/Small parameters of your chosen woofer ( Fscap F sub s Qtscap Q sub t s end-sub Vascap V sub a s Recap R sub e