In this issue

8 2019 Midwest Audiofest
Speaker Design Competition
By Thomas Perazella

16 A Look Inside Bob Cordell’s Designing Audio Power Amplifiers, 2nd Edition
By Jan Didden
When Bob Cordell published his long-awaited first edition of Audio Power Amplifier Design, it was hailed as a significant addition on the subject. Reactions of readers made it clear that Cordell hit his mark. Here, Jan Didden gives his thoughts regarding Cordell’s
long-awaited second edition.
20 Integrated, Networked, and Secure
By J. Martins
In this market update audioXpress provides an overview of product and technology trends in the audio installation market.
32 Auralization—Building Virtual Acoustic Models
By Richard Honeycutt
36 The DPA d:vice MMA-A
Mobile Recording Interface
By Stuart Yaniger
DPA’s newest accessory, the d:vice MMA-A, is meant to allow users to plug the d:vote mics into an iOS device, providing both an interface and phantom voltage.
44 Bringing 6DoF to Live Recorded Audio and Video
By Piotr Szczechowiak and Tomasz Żernicki
Imagine a popular music festival you’ve always wanted to experience in person. For one reason or another, you can’t make it to the festival. But what if you could plug into an immersive experience that allows you to move freely through the entire audio soundscape and visual landscape? This is the promise of Six Degrees of Freedom (6DoF).
48 Updating the Rules on
Amplifier Metrics
By Jens Tybo Jensen
It may be time to rethink your Class D audio design and measurement practices.
54 Building a Mini Speaker System
The Bantams
By Thomas Zarbo, Jr.
As an avid speaker builder, Thomas Zarbo, Jr., decided to take on the challenge of building his own pair of small-size speakers.
62 The First Electronic
Music Synthesizer
By Richard Honeycutt

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