Product Development, Speakers, and Acoustic Analysis in audioXpress September 2023

audioXpress September 2023 is a rich issue in the amount of audio topics explored and depth of analysis. Learn about the latest sound meters and acoustical simulation tools, what immersive audio really is, and what is possible with the development kits for true wireless earbuds from Knowles. Roger Shively does a full analysis of the Dinaburg C2S Concentric Coplanar Stabilizer speaker technology, Charlie Laub explains how to build a Minimally Baffled Dipole Loudspeaker, and Gary Gesellchen reveals viable bass reflex speaker designs.

One of the most important audio events for the speaker building and DIY audio communities, the Midwest Audiofest (MWAF) is held in Springboro, OH, in July every year. Sponsored by an impressive group of vendors and hosted by Parts Express, this event combines several activities including a huge tent sale at Parts Express. For Thomas Perazella the highlight of the event is the Speaker Design Competition, for which he was again one of the competition judges. This article was originally published in audioXpress, October 2019.

The October 2019 edition of audioXpress closely reflects the highly diverse and exciting areas of innovation in the audio industry. There’s a Market Update on Audio Installation, one of the highest growth and most innovative segments in the audio industry, and our report of the 2019 Midwest Audiofest Speaker Design Competition, followed by a review of Bob Cordell’s 2nd Edition book on Designing Audio Power Amplifiers, and an important insight on modern Class-D amplification. We also review the DPA d:vice MMA-A Digital Audio Interface, explain the potential of true 6DoF (six degrees of freedom) audio experiences, how Auralization allows building virtual acoustic models, and so much more!

Parts Express will hold its annual Midwest AudioFest from July 14–15, 2017 at Parts Express’ headquarters in Springboro (Dayton), OH. The event includes the Parts Express Warehouse Tent Sale, an Audio Swap Meet, a Mobile Electronics Competition Association (MECA) sponsored Auto Sound Competition, and the highlight of the event — the DIY Speaker Design Competition.