During Workshop #3 at the Audio Engineering Society Convention in Berlin (May 2017), Mike Turner presented his ideas and plans to (strongly) improve the low frequency response of loudspeakers. This presentation is now available. It dives deeper into the theory, but to those readers, who think it will be (too) difficult: it includes also a number of very illustrative figures of the temporal response which are certainly worthwhile to study in more detail.

pdfAES Berlin 2017 v2.pdf.