The Latest in Wireless Earbuds and Hearables Innovations in audioXpress April 2025

audioXpress April 2025 is now available and includes a comprehensive Market Update on Wireless Earbuds and Hearables, covering AI, Sensors, how Wi-Fi streaming is possible in headphones, and more. René Christensen explains Expansion Techniques for Acoustical Engineering, Ethan Winer writes about Built-In Guitar Effects, and Vincent Thiernesse shares his incredible single control Low-Frequency Hybrid Crossover. Don't miss also Paul Marchese's Primer on Class-D Amplifiers, and Richard Honeycutt's article on Silvertone guitar amp circuits.

audioXpress August 2024 features our traditional Acoustical Solutions Round-Up, while Active Acoustic Enhancement Systems are also discussed in the Sound Control column. Oliver Masciarotte reports from AXPONA 2024, Philipp P. Klose reviews the new IK Multimedia ARC Studio solution, and Brewster LaMacchia expands on alternative power schemes for audio applications with A2B. On audio electronics, Charlie Laub explores Notch Filters, and Todd Schneider details his High-Fidelity Active Direct Box project.

In audioXpress January 2024, Martin Turesson explains how Thin-ply Carbon Diaphragm (TPCD) technology can be applied also to headphones, and Claus Futtrup writes about Loudspeaker Bass Reflex Alignments. Paul Marchese discusses Composite Amplifiers, Roger Tall explains how a research effort allowed ClarityCap to understand the impact of resonances in capacitors. Our own Jan Didden interviews Robert Munnig Schmidt, while audio expert Ethan Winer explores audible consequences of jitter in digital audio conversion.

The August 2021 edition of audioXpress is now available in print and online. Read our Acoustical Solutions Round-Up 2021 and enjoy the DIY perspectives from Ethan Winer and Thomas Perazella on dealing with room measurements and treatments. David Logvin reviews Audio Precision's APx517B Acoustic Audio Analyzer, while Richard Honeycutt reflects on acoustic challenges for online and in-person meetings. And we conclude the DH-220C MOSFET Power Amplifier article by Bob Cordell and Rick Savas, and the VSCS Amplifier project in this edition.

One of the strongest issues ever in terms of audio electronics and market insights, audioXpress July 2021 is now available. This edition includes a complete overview of Audio Amplifier Technology and Design and its many application segments. Start with a review of the NAD Electronics M33 Masters streaming amplifier, followed by a great new upgrade design for the legendary Hafler DH-220 lateral MOSFET power amplifier, and then dive into a new hybrid voltage source and current source amplifier design for loudspeakers.