Martin J King Mathcad Worksheets ((exclusive)) Jun 2026

Users can specify the density and location of "stuffing" (like polyfill or wool), which is critical for smoothing out unwanted resonances in TL designs. Why Mathcad?

This is the crucial first step. Find a known "good" or "accepted" baseline dimension for the type of line you wish to build. Excellent resources for baseline dimensions are Bob Brines' website and Martin J. King's own "TL Alignment Tables," which provide great starting estimates. martin j king mathcad worksheets

MJK developed specialized worksheets for a wide range of sophisticated speaker geometries: = Ud + UcUo = UL SL ε Uo So Users can specify the density and location of

Allowed the modeling of dipole speakers, helping designers calculate the exact baffle step roll-off and floor-reflection cancellations. Find a known "good" or "accepted" baseline dimension

The Martin J. King worksheets are a collection of Mathcad files (.mcd and later .xmcd) that model the acoustic behavior of loudspeaker enclosures. Originally hosted on his website (quarter-wave.com), the worksheets cover a vast array of topologies, including:

The sheets allow users to define multi-section enclosures. You can simulate a straight pipe, a heavily tapered horn, or a classic contracting transmission line.